Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/psutil/tests/test_linux.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 #!/usr/bin/env python3 |
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2 |
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3 # Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. |
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4 # Use of this source code is governed by a BSD-style license that can be |
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5 # found in the LICENSE file. |
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6 |
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7 """Linux specific tests.""" |
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8 |
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9 from __future__ import division |
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10 import collections |
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11 import contextlib |
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12 import errno |
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13 import glob |
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14 import io |
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15 import os |
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16 import re |
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17 import shutil |
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18 import socket |
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19 import struct |
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20 import textwrap |
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21 import time |
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22 import warnings |
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23 |
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24 import psutil |
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25 from psutil import LINUX |
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26 from psutil._compat import basestring |
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27 from psutil._compat import FileNotFoundError |
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28 from psutil._compat import PY3 |
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29 from psutil._compat import u |
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30 from psutil.tests import call_until |
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31 from psutil.tests import GLOBAL_TIMEOUT |
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32 from psutil.tests import HAS_BATTERY |
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33 from psutil.tests import HAS_CPU_FREQ |
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34 from psutil.tests import HAS_GETLOADAVG |
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35 from psutil.tests import HAS_RLIMIT |
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36 from psutil.tests import mock |
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37 from psutil.tests import PsutilTestCase |
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38 from psutil.tests import PYPY |
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39 from psutil.tests import reload_module |
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40 from psutil.tests import retry_on_failure |
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41 from psutil.tests import safe_rmpath |
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42 from psutil.tests import sh |
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43 from psutil.tests import skip_on_not_implemented |
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44 from psutil.tests import ThreadTask |
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45 from psutil.tests import TOLERANCE_DISK_USAGE |
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46 from psutil.tests import TOLERANCE_SYS_MEM |
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47 from psutil.tests import unittest |
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48 from psutil.tests import which |
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49 |
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50 |
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51 HERE = os.path.abspath(os.path.dirname(__file__)) |
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52 SIOCGIFADDR = 0x8915 |
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53 SIOCGIFCONF = 0x8912 |
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54 SIOCGIFHWADDR = 0x8927 |
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55 SIOCGIFNETMASK = 0x891b |
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56 SIOCGIFBRDADDR = 0x8919 |
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57 if LINUX: |
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58 SECTOR_SIZE = 512 |
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59 EMPTY_TEMPERATURES = not glob.glob('/sys/class/hwmon/hwmon*') |
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60 |
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61 # ===================================================================== |
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62 # --- utils |
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63 # ===================================================================== |
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64 |
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65 |
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66 def get_ipv4_address(ifname): |
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67 import fcntl |
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68 ifname = ifname[:15] |
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69 if PY3: |
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70 ifname = bytes(ifname, 'ascii') |
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71 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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72 with contextlib.closing(s): |
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73 return socket.inet_ntoa( |
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74 fcntl.ioctl(s.fileno(), |
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75 SIOCGIFADDR, |
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76 struct.pack('256s', ifname))[20:24]) |
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77 |
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78 |
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79 def get_ipv4_netmask(ifname): |
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80 import fcntl |
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81 ifname = ifname[:15] |
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82 if PY3: |
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83 ifname = bytes(ifname, 'ascii') |
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84 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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85 with contextlib.closing(s): |
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86 return socket.inet_ntoa( |
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87 fcntl.ioctl(s.fileno(), |
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88 SIOCGIFNETMASK, |
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89 struct.pack('256s', ifname))[20:24]) |
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90 |
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91 |
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92 def get_ipv4_broadcast(ifname): |
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93 import fcntl |
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94 ifname = ifname[:15] |
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95 if PY3: |
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96 ifname = bytes(ifname, 'ascii') |
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97 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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98 with contextlib.closing(s): |
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99 return socket.inet_ntoa( |
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100 fcntl.ioctl(s.fileno(), |
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101 SIOCGIFBRDADDR, |
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102 struct.pack('256s', ifname))[20:24]) |
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103 |
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104 |
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105 def get_ipv6_address(ifname): |
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106 with open("/proc/net/if_inet6", 'rt') as f: |
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107 for line in f.readlines(): |
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108 fields = line.split() |
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109 if fields[-1] == ifname: |
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110 break |
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111 else: |
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112 raise ValueError("could not find interface %r" % ifname) |
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113 unformatted = fields[0] |
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114 groups = [] |
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115 for i in range(0, len(unformatted), 4): |
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116 groups.append(unformatted[i:i + 4]) |
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117 formatted = ":".join(groups) |
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118 packed = socket.inet_pton(socket.AF_INET6, formatted) |
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119 return socket.inet_ntop(socket.AF_INET6, packed) |
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120 |
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121 |
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122 def get_mac_address(ifname): |
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123 import fcntl |
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124 ifname = ifname[:15] |
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125 if PY3: |
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126 ifname = bytes(ifname, 'ascii') |
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127 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) |
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128 with contextlib.closing(s): |
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129 info = fcntl.ioctl( |
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130 s.fileno(), SIOCGIFHWADDR, struct.pack('256s', ifname)) |
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131 if PY3: |
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132 def ord(x): |
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133 return x |
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134 else: |
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135 import __builtin__ |
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136 ord = __builtin__.ord |
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137 return ''.join(['%02x:' % ord(char) for char in info[18:24]])[:-1] |
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138 |
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139 |
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140 def free_swap(): |
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141 """Parse 'free' cmd and return swap memory's s total, used and free |
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142 values. |
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143 """ |
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144 out = sh('free -b', env={"LANG": "C.UTF-8"}) |
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145 lines = out.split('\n') |
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146 for line in lines: |
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147 if line.startswith('Swap'): |
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148 _, total, used, free = line.split() |
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149 nt = collections.namedtuple('free', 'total used free') |
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150 return nt(int(total), int(used), int(free)) |
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151 raise ValueError( |
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152 "can't find 'Swap' in 'free' output:\n%s" % '\n'.join(lines)) |
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153 |
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154 |
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155 def free_physmem(): |
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156 """Parse 'free' cmd and return physical memory's total, used |
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157 and free values. |
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158 """ |
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159 # Note: free can have 2 different formats, invalidating 'shared' |
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160 # and 'cached' memory which may have different positions so we |
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161 # do not return them. |
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162 # https://github.com/giampaolo/psutil/issues/538#issuecomment-57059946 |
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163 out = sh('free -b', env={"LANG": "C.UTF-8"}) |
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164 lines = out.split('\n') |
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165 for line in lines: |
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166 if line.startswith('Mem'): |
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167 total, used, free, shared = \ |
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168 [int(x) for x in line.split()[1:5]] |
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169 nt = collections.namedtuple( |
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170 'free', 'total used free shared output') |
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171 return nt(total, used, free, shared, out) |
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172 raise ValueError( |
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173 "can't find 'Mem' in 'free' output:\n%s" % '\n'.join(lines)) |
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174 |
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175 |
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176 def vmstat(stat): |
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177 out = sh("vmstat -s", env={"LANG": "C.UTF-8"}) |
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178 for line in out.split("\n"): |
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179 line = line.strip() |
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180 if stat in line: |
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181 return int(line.split(' ')[0]) |
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182 raise ValueError("can't find %r in 'vmstat' output" % stat) |
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183 |
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184 |
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185 def get_free_version_info(): |
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186 out = sh("free -V").strip() |
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187 if 'UNKNOWN' in out: |
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188 raise unittest.SkipTest("can't determine free version") |
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189 return tuple(map(int, out.split()[-1].split('.'))) |
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190 |
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191 |
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192 @contextlib.contextmanager |
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193 def mock_open_content(for_path, content): |
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194 """Mock open() builtin and forces it to return a certain `content` |
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195 on read() if the path being opened matches `for_path`. |
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196 """ |
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197 def open_mock(name, *args, **kwargs): |
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198 if name == for_path: |
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199 if PY3: |
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200 if isinstance(content, basestring): |
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201 return io.StringIO(content) |
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202 else: |
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203 return io.BytesIO(content) |
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204 else: |
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205 return io.BytesIO(content) |
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206 else: |
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207 return orig_open(name, *args, **kwargs) |
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208 |
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209 orig_open = open |
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210 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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211 with mock.patch(patch_point, create=True, side_effect=open_mock) as m: |
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212 yield m |
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213 |
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214 |
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215 @contextlib.contextmanager |
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216 def mock_open_exception(for_path, exc): |
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217 """Mock open() builtin and raises `exc` if the path being opened |
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218 matches `for_path`. |
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219 """ |
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220 def open_mock(name, *args, **kwargs): |
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221 if name == for_path: |
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222 raise exc |
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223 else: |
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224 return orig_open(name, *args, **kwargs) |
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225 |
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226 orig_open = open |
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227 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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228 with mock.patch(patch_point, create=True, side_effect=open_mock) as m: |
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229 yield m |
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230 |
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231 |
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232 # ===================================================================== |
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233 # --- system virtual memory |
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234 # ===================================================================== |
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235 |
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236 |
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237 @unittest.skipIf(not LINUX, "LINUX only") |
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238 class TestSystemVirtualMemory(PsutilTestCase): |
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239 |
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240 def test_total(self): |
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241 # free_value = free_physmem().total |
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242 # psutil_value = psutil.virtual_memory().total |
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243 # self.assertEqual(free_value, psutil_value) |
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244 vmstat_value = vmstat('total memory') * 1024 |
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245 psutil_value = psutil.virtual_memory().total |
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246 self.assertAlmostEqual(vmstat_value, psutil_value) |
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247 |
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248 @retry_on_failure() |
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249 def test_used(self): |
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250 # Older versions of procps used slab memory to calculate used memory. |
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251 # This got changed in: |
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252 # https://gitlab.com/procps-ng/procps/commit/ |
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253 # 05d751c4f076a2f0118b914c5e51cfbb4762ad8e |
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254 if get_free_version_info() < (3, 3, 12): |
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255 raise self.skipTest("old free version") |
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256 free = free_physmem() |
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257 free_value = free.used |
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258 psutil_value = psutil.virtual_memory().used |
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259 self.assertAlmostEqual( |
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260 free_value, psutil_value, delta=TOLERANCE_SYS_MEM, |
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261 msg='%s %s \n%s' % (free_value, psutil_value, free.output)) |
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262 |
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263 @retry_on_failure() |
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264 def test_free(self): |
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265 vmstat_value = vmstat('free memory') * 1024 |
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266 psutil_value = psutil.virtual_memory().free |
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267 self.assertAlmostEqual( |
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268 vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) |
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269 |
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270 @retry_on_failure() |
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271 def test_buffers(self): |
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272 vmstat_value = vmstat('buffer memory') * 1024 |
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273 psutil_value = psutil.virtual_memory().buffers |
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274 self.assertAlmostEqual( |
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275 vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) |
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276 |
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277 @retry_on_failure() |
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278 def test_active(self): |
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279 vmstat_value = vmstat('active memory') * 1024 |
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280 psutil_value = psutil.virtual_memory().active |
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281 self.assertAlmostEqual( |
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282 vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) |
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283 |
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284 @retry_on_failure() |
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285 def test_inactive(self): |
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286 vmstat_value = vmstat('inactive memory') * 1024 |
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287 psutil_value = psutil.virtual_memory().inactive |
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288 self.assertAlmostEqual( |
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289 vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) |
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290 |
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291 @retry_on_failure() |
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292 def test_shared(self): |
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293 free = free_physmem() |
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294 free_value = free.shared |
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295 if free_value == 0: |
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296 raise unittest.SkipTest("free does not support 'shared' column") |
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297 psutil_value = psutil.virtual_memory().shared |
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298 self.assertAlmostEqual( |
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299 free_value, psutil_value, delta=TOLERANCE_SYS_MEM, |
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300 msg='%s %s \n%s' % (free_value, psutil_value, free.output)) |
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301 |
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302 @retry_on_failure() |
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303 def test_available(self): |
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304 # "free" output format has changed at some point: |
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305 # https://github.com/giampaolo/psutil/issues/538#issuecomment-147192098 |
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306 out = sh("free -b") |
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307 lines = out.split('\n') |
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308 if 'available' not in lines[0]: |
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309 raise unittest.SkipTest("free does not support 'available' column") |
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310 else: |
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311 free_value = int(lines[1].split()[-1]) |
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312 psutil_value = psutil.virtual_memory().available |
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313 self.assertAlmostEqual( |
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314 free_value, psutil_value, delta=TOLERANCE_SYS_MEM, |
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315 msg='%s %s \n%s' % (free_value, psutil_value, out)) |
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316 |
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317 def test_warnings_on_misses(self): |
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318 # Emulate a case where /proc/meminfo provides few info. |
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319 # psutil is supposed to set the missing fields to 0 and |
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320 # raise a warning. |
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321 with mock_open_content( |
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322 '/proc/meminfo', |
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323 textwrap.dedent("""\ |
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324 Active(anon): 6145416 kB |
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325 Active(file): 2950064 kB |
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326 Inactive(anon): 574764 kB |
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327 Inactive(file): 1567648 kB |
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328 MemAvailable: -1 kB |
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329 MemFree: 2057400 kB |
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330 MemTotal: 16325648 kB |
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331 SReclaimable: 346648 kB |
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332 """).encode()) as m: |
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333 with warnings.catch_warnings(record=True) as ws: |
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334 warnings.simplefilter("always") |
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335 ret = psutil.virtual_memory() |
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336 assert m.called |
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337 self.assertEqual(len(ws), 1) |
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338 w = ws[0] |
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339 assert w.filename.endswith('psutil/_pslinux.py') |
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340 self.assertIn( |
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341 "memory stats couldn't be determined", str(w.message)) |
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342 self.assertIn("cached", str(w.message)) |
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343 self.assertIn("shared", str(w.message)) |
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344 self.assertIn("active", str(w.message)) |
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345 self.assertIn("inactive", str(w.message)) |
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346 self.assertIn("buffers", str(w.message)) |
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347 self.assertIn("available", str(w.message)) |
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348 self.assertEqual(ret.cached, 0) |
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349 self.assertEqual(ret.active, 0) |
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350 self.assertEqual(ret.inactive, 0) |
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351 self.assertEqual(ret.shared, 0) |
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352 self.assertEqual(ret.buffers, 0) |
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353 self.assertEqual(ret.available, 0) |
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354 self.assertEqual(ret.slab, 0) |
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355 |
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356 @retry_on_failure() |
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357 def test_avail_old_percent(self): |
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358 # Make sure that our calculation of avail mem for old kernels |
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359 # is off by max 15%. |
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360 from psutil._pslinux import calculate_avail_vmem |
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361 from psutil._pslinux import open_binary |
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362 |
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363 mems = {} |
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364 with open_binary('/proc/meminfo') as f: |
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365 for line in f: |
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366 fields = line.split() |
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367 mems[fields[0]] = int(fields[1]) * 1024 |
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368 |
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369 a = calculate_avail_vmem(mems) |
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370 if b'MemAvailable:' in mems: |
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371 b = mems[b'MemAvailable:'] |
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372 diff_percent = abs(a - b) / a * 100 |
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373 self.assertLess(diff_percent, 15) |
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374 |
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375 def test_avail_old_comes_from_kernel(self): |
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376 # Make sure "MemAvailable:" coluimn is used instead of relying |
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377 # on our internal algorithm to calculate avail mem. |
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378 with mock_open_content( |
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379 '/proc/meminfo', |
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380 textwrap.dedent("""\ |
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381 Active: 9444728 kB |
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382 Active(anon): 6145416 kB |
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383 Active(file): 2950064 kB |
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384 Buffers: 287952 kB |
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385 Cached: 4818144 kB |
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386 Inactive(file): 1578132 kB |
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387 Inactive(anon): 574764 kB |
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388 Inactive(file): 1567648 kB |
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389 MemAvailable: 6574984 kB |
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390 MemFree: 2057400 kB |
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391 MemTotal: 16325648 kB |
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392 Shmem: 577588 kB |
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393 SReclaimable: 346648 kB |
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394 """).encode()) as m: |
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395 with warnings.catch_warnings(record=True) as ws: |
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396 ret = psutil.virtual_memory() |
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397 assert m.called |
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398 self.assertEqual(ret.available, 6574984 * 1024) |
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399 w = ws[0] |
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400 self.assertIn( |
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401 "inactive memory stats couldn't be determined", str(w.message)) |
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402 |
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403 def test_avail_old_missing_fields(self): |
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404 # Remove Active(file), Inactive(file) and SReclaimable |
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405 # from /proc/meminfo and make sure the fallback is used |
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406 # (free + cached), |
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407 with mock_open_content( |
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408 "/proc/meminfo", |
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409 textwrap.dedent("""\ |
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410 Active: 9444728 kB |
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411 Active(anon): 6145416 kB |
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412 Buffers: 287952 kB |
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413 Cached: 4818144 kB |
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414 Inactive(file): 1578132 kB |
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415 Inactive(anon): 574764 kB |
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416 MemFree: 2057400 kB |
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417 MemTotal: 16325648 kB |
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418 Shmem: 577588 kB |
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419 """).encode()) as m: |
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420 with warnings.catch_warnings(record=True) as ws: |
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421 ret = psutil.virtual_memory() |
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422 assert m.called |
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423 self.assertEqual(ret.available, 2057400 * 1024 + 4818144 * 1024) |
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424 w = ws[0] |
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425 self.assertIn( |
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426 "inactive memory stats couldn't be determined", str(w.message)) |
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427 |
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428 def test_avail_old_missing_zoneinfo(self): |
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429 # Remove /proc/zoneinfo file. Make sure fallback is used |
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430 # (free + cached). |
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431 with mock_open_content( |
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432 "/proc/meminfo", |
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433 textwrap.dedent("""\ |
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434 Active: 9444728 kB |
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435 Active(anon): 6145416 kB |
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436 Active(file): 2950064 kB |
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437 Buffers: 287952 kB |
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438 Cached: 4818144 kB |
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439 Inactive(file): 1578132 kB |
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440 Inactive(anon): 574764 kB |
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441 Inactive(file): 1567648 kB |
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442 MemFree: 2057400 kB |
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443 MemTotal: 16325648 kB |
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444 Shmem: 577588 kB |
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445 SReclaimable: 346648 kB |
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446 """).encode()): |
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447 with mock_open_exception( |
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448 "/proc/zoneinfo", |
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449 IOError(errno.ENOENT, 'no such file or directory')): |
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450 with warnings.catch_warnings(record=True) as ws: |
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451 ret = psutil.virtual_memory() |
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452 self.assertEqual( |
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453 ret.available, 2057400 * 1024 + 4818144 * 1024) |
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454 w = ws[0] |
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455 self.assertIn( |
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456 "inactive memory stats couldn't be determined", |
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457 str(w.message)) |
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458 |
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459 def test_virtual_memory_mocked(self): |
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460 # Emulate /proc/meminfo because neither vmstat nor free return slab. |
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461 def open_mock(name, *args, **kwargs): |
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462 if name == '/proc/meminfo': |
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463 return io.BytesIO(textwrap.dedent("""\ |
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464 MemTotal: 100 kB |
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465 MemFree: 2 kB |
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466 MemAvailable: 3 kB |
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467 Buffers: 4 kB |
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468 Cached: 5 kB |
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469 SwapCached: 6 kB |
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470 Active: 7 kB |
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471 Inactive: 8 kB |
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472 Active(anon): 9 kB |
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473 Inactive(anon): 10 kB |
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474 Active(file): 11 kB |
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475 Inactive(file): 12 kB |
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476 Unevictable: 13 kB |
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477 Mlocked: 14 kB |
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478 SwapTotal: 15 kB |
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479 SwapFree: 16 kB |
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480 Dirty: 17 kB |
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481 Writeback: 18 kB |
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482 AnonPages: 19 kB |
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483 Mapped: 20 kB |
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484 Shmem: 21 kB |
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485 Slab: 22 kB |
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486 SReclaimable: 23 kB |
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487 SUnreclaim: 24 kB |
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488 KernelStack: 25 kB |
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489 PageTables: 26 kB |
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490 NFS_Unstable: 27 kB |
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491 Bounce: 28 kB |
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492 WritebackTmp: 29 kB |
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493 CommitLimit: 30 kB |
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494 Committed_AS: 31 kB |
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495 VmallocTotal: 32 kB |
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496 VmallocUsed: 33 kB |
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497 VmallocChunk: 34 kB |
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498 HardwareCorrupted: 35 kB |
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499 AnonHugePages: 36 kB |
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500 ShmemHugePages: 37 kB |
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501 ShmemPmdMapped: 38 kB |
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502 CmaTotal: 39 kB |
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503 CmaFree: 40 kB |
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504 HugePages_Total: 41 kB |
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505 HugePages_Free: 42 kB |
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506 HugePages_Rsvd: 43 kB |
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507 HugePages_Surp: 44 kB |
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508 Hugepagesize: 45 kB |
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509 DirectMap46k: 46 kB |
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510 DirectMap47M: 47 kB |
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511 DirectMap48G: 48 kB |
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512 """).encode()) |
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513 else: |
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514 return orig_open(name, *args, **kwargs) |
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515 |
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516 orig_open = open |
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517 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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518 with mock.patch(patch_point, create=True, side_effect=open_mock) as m: |
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519 mem = psutil.virtual_memory() |
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520 assert m.called |
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521 self.assertEqual(mem.total, 100 * 1024) |
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522 self.assertEqual(mem.free, 2 * 1024) |
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523 self.assertEqual(mem.buffers, 4 * 1024) |
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524 # cached mem also includes reclaimable memory |
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525 self.assertEqual(mem.cached, (5 + 23) * 1024) |
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526 self.assertEqual(mem.shared, 21 * 1024) |
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527 self.assertEqual(mem.active, 7 * 1024) |
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528 self.assertEqual(mem.inactive, 8 * 1024) |
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529 self.assertEqual(mem.slab, 22 * 1024) |
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530 self.assertEqual(mem.available, 3 * 1024) |
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531 |
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532 |
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533 # ===================================================================== |
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534 # --- system swap memory |
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535 # ===================================================================== |
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536 |
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537 |
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538 @unittest.skipIf(not LINUX, "LINUX only") |
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539 class TestSystemSwapMemory(PsutilTestCase): |
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540 |
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541 @staticmethod |
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542 def meminfo_has_swap_info(): |
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543 """Return True if /proc/meminfo provides swap metrics.""" |
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544 with open("/proc/meminfo") as f: |
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545 data = f.read() |
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546 return 'SwapTotal:' in data and 'SwapFree:' in data |
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547 |
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548 def test_total(self): |
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549 free_value = free_swap().total |
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550 psutil_value = psutil.swap_memory().total |
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551 return self.assertAlmostEqual( |
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552 free_value, psutil_value, delta=TOLERANCE_SYS_MEM) |
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553 |
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554 @retry_on_failure() |
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555 def test_used(self): |
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556 free_value = free_swap().used |
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557 psutil_value = psutil.swap_memory().used |
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558 return self.assertAlmostEqual( |
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559 free_value, psutil_value, delta=TOLERANCE_SYS_MEM) |
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560 |
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561 @retry_on_failure() |
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562 def test_free(self): |
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563 free_value = free_swap().free |
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564 psutil_value = psutil.swap_memory().free |
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565 return self.assertAlmostEqual( |
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566 free_value, psutil_value, delta=TOLERANCE_SYS_MEM) |
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567 |
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568 def test_missing_sin_sout(self): |
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569 with mock.patch('psutil._common.open', create=True) as m: |
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570 with warnings.catch_warnings(record=True) as ws: |
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571 warnings.simplefilter("always") |
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572 ret = psutil.swap_memory() |
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573 assert m.called |
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574 self.assertEqual(len(ws), 1) |
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575 w = ws[0] |
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576 assert w.filename.endswith('psutil/_pslinux.py') |
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577 self.assertIn( |
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578 "'sin' and 'sout' swap memory stats couldn't " |
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579 "be determined", str(w.message)) |
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580 self.assertEqual(ret.sin, 0) |
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581 self.assertEqual(ret.sout, 0) |
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582 |
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583 def test_no_vmstat_mocked(self): |
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584 # see https://github.com/giampaolo/psutil/issues/722 |
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585 with mock_open_exception( |
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586 "/proc/vmstat", |
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587 IOError(errno.ENOENT, 'no such file or directory')) as m: |
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588 with warnings.catch_warnings(record=True) as ws: |
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589 warnings.simplefilter("always") |
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590 ret = psutil.swap_memory() |
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591 assert m.called |
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592 self.assertEqual(len(ws), 1) |
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593 w = ws[0] |
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594 assert w.filename.endswith('psutil/_pslinux.py') |
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595 self.assertIn( |
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596 "'sin' and 'sout' swap memory stats couldn't " |
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597 "be determined and were set to 0", |
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598 str(w.message)) |
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599 self.assertEqual(ret.sin, 0) |
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600 self.assertEqual(ret.sout, 0) |
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601 |
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602 def test_meminfo_against_sysinfo(self): |
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603 # Make sure the content of /proc/meminfo about swap memory |
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604 # matches sysinfo() syscall, see: |
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605 # https://github.com/giampaolo/psutil/issues/1015 |
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606 if not self.meminfo_has_swap_info(): |
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607 return unittest.skip("/proc/meminfo has no swap metrics") |
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608 with mock.patch('psutil._pslinux.cext.linux_sysinfo') as m: |
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609 swap = psutil.swap_memory() |
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610 assert not m.called |
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611 import psutil._psutil_linux as cext |
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612 _, _, _, _, total, free, unit_multiplier = cext.linux_sysinfo() |
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613 total *= unit_multiplier |
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614 free *= unit_multiplier |
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615 self.assertEqual(swap.total, total) |
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616 self.assertAlmostEqual(swap.free, free, delta=TOLERANCE_SYS_MEM) |
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617 |
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618 def test_emulate_meminfo_has_no_metrics(self): |
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619 # Emulate a case where /proc/meminfo provides no swap metrics |
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620 # in which case sysinfo() syscall is supposed to be used |
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621 # as a fallback. |
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622 with mock_open_content("/proc/meminfo", b"") as m: |
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623 psutil.swap_memory() |
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624 assert m.called |
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625 |
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626 |
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627 # ===================================================================== |
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628 # --- system CPU |
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629 # ===================================================================== |
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630 |
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631 |
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632 @unittest.skipIf(not LINUX, "LINUX only") |
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633 class TestSystemCPUTimes(PsutilTestCase): |
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634 |
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635 def test_fields(self): |
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636 fields = psutil.cpu_times()._fields |
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637 kernel_ver = re.findall(r'\d+\.\d+\.\d+', os.uname()[2])[0] |
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638 kernel_ver_info = tuple(map(int, kernel_ver.split('.'))) |
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639 if kernel_ver_info >= (2, 6, 11): |
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640 self.assertIn('steal', fields) |
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641 else: |
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642 self.assertNotIn('steal', fields) |
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643 if kernel_ver_info >= (2, 6, 24): |
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644 self.assertIn('guest', fields) |
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645 else: |
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646 self.assertNotIn('guest', fields) |
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647 if kernel_ver_info >= (3, 2, 0): |
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648 self.assertIn('guest_nice', fields) |
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649 else: |
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650 self.assertNotIn('guest_nice', fields) |
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651 |
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652 |
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653 @unittest.skipIf(not LINUX, "LINUX only") |
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654 class TestSystemCPUCountLogical(PsutilTestCase): |
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655 |
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656 @unittest.skipIf(not os.path.exists("/sys/devices/system/cpu/online"), |
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657 "/sys/devices/system/cpu/online does not exist") |
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658 def test_against_sysdev_cpu_online(self): |
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659 with open("/sys/devices/system/cpu/online") as f: |
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660 value = f.read().strip() |
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661 if "-" in str(value): |
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662 value = int(value.split('-')[1]) + 1 |
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663 self.assertEqual(psutil.cpu_count(), value) |
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664 |
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665 @unittest.skipIf(not os.path.exists("/sys/devices/system/cpu"), |
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666 "/sys/devices/system/cpu does not exist") |
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667 def test_against_sysdev_cpu_num(self): |
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668 ls = os.listdir("/sys/devices/system/cpu") |
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669 count = len([x for x in ls if re.search(r"cpu\d+$", x) is not None]) |
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670 self.assertEqual(psutil.cpu_count(), count) |
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671 |
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672 @unittest.skipIf(not which("nproc"), "nproc utility not available") |
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673 def test_against_nproc(self): |
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674 num = int(sh("nproc --all")) |
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675 self.assertEqual(psutil.cpu_count(logical=True), num) |
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676 |
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677 @unittest.skipIf(not which("lscpu"), "lscpu utility not available") |
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678 def test_against_lscpu(self): |
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679 out = sh("lscpu -p") |
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680 num = len([x for x in out.split('\n') if not x.startswith('#')]) |
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681 self.assertEqual(psutil.cpu_count(logical=True), num) |
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682 |
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683 def test_emulate_fallbacks(self): |
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684 import psutil._pslinux |
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685 original = psutil._pslinux.cpu_count_logical() |
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686 # Here we want to mock os.sysconf("SC_NPROCESSORS_ONLN") in |
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687 # order to cause the parsing of /proc/cpuinfo and /proc/stat. |
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688 with mock.patch( |
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689 'psutil._pslinux.os.sysconf', side_effect=ValueError) as m: |
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690 self.assertEqual(psutil._pslinux.cpu_count_logical(), original) |
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691 assert m.called |
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692 |
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693 # Let's have open() return emtpy data and make sure None is |
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694 # returned ('cause we mimick os.cpu_count()). |
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695 with mock.patch('psutil._common.open', create=True) as m: |
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696 self.assertIsNone(psutil._pslinux.cpu_count_logical()) |
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697 self.assertEqual(m.call_count, 2) |
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698 # /proc/stat should be the last one |
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699 self.assertEqual(m.call_args[0][0], '/proc/stat') |
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700 |
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701 # Let's push this a bit further and make sure /proc/cpuinfo |
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702 # parsing works as expected. |
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703 with open('/proc/cpuinfo', 'rb') as f: |
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704 cpuinfo_data = f.read() |
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705 fake_file = io.BytesIO(cpuinfo_data) |
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706 with mock.patch('psutil._common.open', |
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707 return_value=fake_file, create=True) as m: |
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708 self.assertEqual(psutil._pslinux.cpu_count_logical(), original) |
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709 |
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710 # Finally, let's make /proc/cpuinfo return meaningless data; |
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711 # this way we'll fall back on relying on /proc/stat |
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712 with mock_open_content('/proc/cpuinfo', b"") as m: |
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713 self.assertEqual(psutil._pslinux.cpu_count_logical(), original) |
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714 m.called |
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715 |
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716 |
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717 @unittest.skipIf(not LINUX, "LINUX only") |
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718 class TestSystemCPUCountPhysical(PsutilTestCase): |
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719 |
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720 @unittest.skipIf(not which("lscpu"), "lscpu utility not available") |
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721 def test_against_lscpu(self): |
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722 out = sh("lscpu -p") |
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723 core_ids = set() |
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724 for line in out.split('\n'): |
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725 if not line.startswith('#'): |
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726 fields = line.split(',') |
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727 core_ids.add(fields[1]) |
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728 self.assertEqual(psutil.cpu_count(logical=False), len(core_ids)) |
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729 |
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730 def test_method_2(self): |
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731 meth_1 = psutil._pslinux.cpu_count_physical() |
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732 with mock.patch('glob.glob', return_value=[]) as m: |
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733 meth_2 = psutil._pslinux.cpu_count_physical() |
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734 assert m.called |
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735 if meth_1 is not None: |
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736 self.assertEqual(meth_1, meth_2) |
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737 |
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738 def test_emulate_none(self): |
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739 with mock.patch('glob.glob', return_value=[]) as m1: |
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740 with mock.patch('psutil._common.open', create=True) as m2: |
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741 self.assertIsNone(psutil._pslinux.cpu_count_physical()) |
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742 assert m1.called |
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743 assert m2.called |
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744 |
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745 |
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746 @unittest.skipIf(not LINUX, "LINUX only") |
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747 class TestSystemCPUFrequency(PsutilTestCase): |
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748 |
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749 @unittest.skipIf(not HAS_CPU_FREQ, "not supported") |
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750 def test_emulate_use_second_file(self): |
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751 # https://github.com/giampaolo/psutil/issues/981 |
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752 def path_exists_mock(path): |
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753 if path.startswith("/sys/devices/system/cpu/cpufreq/policy"): |
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754 return False |
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755 else: |
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756 return orig_exists(path) |
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757 |
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758 orig_exists = os.path.exists |
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759 with mock.patch("os.path.exists", side_effect=path_exists_mock, |
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760 create=True): |
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761 assert psutil.cpu_freq() |
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762 |
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763 @unittest.skipIf(not HAS_CPU_FREQ, "not supported") |
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764 def test_emulate_use_cpuinfo(self): |
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765 # Emulate a case where /sys/devices/system/cpu/cpufreq* does not |
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766 # exist and /proc/cpuinfo is used instead. |
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767 def path_exists_mock(path): |
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768 if path.startswith('/sys/devices/system/cpu/'): |
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769 return False |
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770 else: |
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771 if path == "/proc/cpuinfo": |
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772 flags.append(None) |
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773 return os_path_exists(path) |
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774 |
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775 flags = [] |
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776 os_path_exists = os.path.exists |
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777 try: |
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778 with mock.patch("os.path.exists", side_effect=path_exists_mock): |
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779 reload_module(psutil._pslinux) |
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780 ret = psutil.cpu_freq() |
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781 assert ret |
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782 assert flags |
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783 self.assertEqual(ret.max, 0.0) |
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784 self.assertEqual(ret.min, 0.0) |
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785 for freq in psutil.cpu_freq(percpu=True): |
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786 self.assertEqual(ret.max, 0.0) |
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787 self.assertEqual(ret.min, 0.0) |
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788 finally: |
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789 reload_module(psutil._pslinux) |
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790 reload_module(psutil) |
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791 |
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792 @unittest.skipIf(not HAS_CPU_FREQ, "not supported") |
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793 def test_emulate_data(self): |
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794 def open_mock(name, *args, **kwargs): |
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795 if (name.endswith('/scaling_cur_freq') and |
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796 name.startswith("/sys/devices/system/cpu/cpufreq/policy")): |
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797 return io.BytesIO(b"500000") |
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798 elif (name.endswith('/scaling_min_freq') and |
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799 name.startswith("/sys/devices/system/cpu/cpufreq/policy")): |
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800 return io.BytesIO(b"600000") |
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801 elif (name.endswith('/scaling_max_freq') and |
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802 name.startswith("/sys/devices/system/cpu/cpufreq/policy")): |
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803 return io.BytesIO(b"700000") |
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804 elif name == '/proc/cpuinfo': |
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805 return io.BytesIO(b"cpu MHz : 500") |
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806 else: |
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807 return orig_open(name, *args, **kwargs) |
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808 |
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809 orig_open = open |
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810 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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811 with mock.patch(patch_point, side_effect=open_mock): |
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812 with mock.patch( |
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813 'os.path.exists', return_value=True): |
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814 freq = psutil.cpu_freq() |
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815 self.assertEqual(freq.current, 500.0) |
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816 # when /proc/cpuinfo is used min and max frequencies are not |
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817 # available and are set to 0. |
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818 if freq.min != 0.0: |
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819 self.assertEqual(freq.min, 600.0) |
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820 if freq.max != 0.0: |
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821 self.assertEqual(freq.max, 700.0) |
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822 |
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823 @unittest.skipIf(not HAS_CPU_FREQ, "not supported") |
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824 def test_emulate_multi_cpu(self): |
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825 def open_mock(name, *args, **kwargs): |
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826 n = name |
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827 if (n.endswith('/scaling_cur_freq') and |
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828 n.startswith("/sys/devices/system/cpu/cpufreq/policy0")): |
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829 return io.BytesIO(b"100000") |
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830 elif (n.endswith('/scaling_min_freq') and |
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831 n.startswith("/sys/devices/system/cpu/cpufreq/policy0")): |
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832 return io.BytesIO(b"200000") |
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833 elif (n.endswith('/scaling_max_freq') and |
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834 n.startswith("/sys/devices/system/cpu/cpufreq/policy0")): |
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835 return io.BytesIO(b"300000") |
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836 elif (n.endswith('/scaling_cur_freq') and |
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837 n.startswith("/sys/devices/system/cpu/cpufreq/policy1")): |
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838 return io.BytesIO(b"400000") |
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839 elif (n.endswith('/scaling_min_freq') and |
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840 n.startswith("/sys/devices/system/cpu/cpufreq/policy1")): |
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841 return io.BytesIO(b"500000") |
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842 elif (n.endswith('/scaling_max_freq') and |
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843 n.startswith("/sys/devices/system/cpu/cpufreq/policy1")): |
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844 return io.BytesIO(b"600000") |
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845 elif name == '/proc/cpuinfo': |
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846 return io.BytesIO(b"cpu MHz : 100\n" |
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847 b"cpu MHz : 400") |
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848 else: |
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849 return orig_open(name, *args, **kwargs) |
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850 |
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851 orig_open = open |
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852 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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853 with mock.patch(patch_point, side_effect=open_mock): |
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854 with mock.patch('os.path.exists', return_value=True): |
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855 with mock.patch('psutil._pslinux.cpu_count_logical', |
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856 return_value=2): |
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857 freq = psutil.cpu_freq(percpu=True) |
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858 self.assertEqual(freq[0].current, 100.0) |
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859 if freq[0].min != 0.0: |
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860 self.assertEqual(freq[0].min, 200.0) |
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861 if freq[0].max != 0.0: |
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862 self.assertEqual(freq[0].max, 300.0) |
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863 self.assertEqual(freq[1].current, 400.0) |
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864 if freq[1].min != 0.0: |
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865 self.assertEqual(freq[1].min, 500.0) |
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866 if freq[1].max != 0.0: |
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867 self.assertEqual(freq[1].max, 600.0) |
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868 |
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869 @unittest.skipIf(not HAS_CPU_FREQ, "not supported") |
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870 def test_emulate_no_scaling_cur_freq_file(self): |
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871 # See: https://github.com/giampaolo/psutil/issues/1071 |
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872 def open_mock(name, *args, **kwargs): |
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873 if name.endswith('/scaling_cur_freq'): |
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874 raise IOError(errno.ENOENT, "") |
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875 elif name.endswith('/cpuinfo_cur_freq'): |
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876 return io.BytesIO(b"200000") |
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877 elif name == '/proc/cpuinfo': |
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878 return io.BytesIO(b"cpu MHz : 200") |
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879 else: |
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880 return orig_open(name, *args, **kwargs) |
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881 |
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882 orig_open = open |
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883 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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884 with mock.patch(patch_point, side_effect=open_mock): |
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885 with mock.patch('os.path.exists', return_value=True): |
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886 with mock.patch('psutil._pslinux.cpu_count_logical', |
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887 return_value=1): |
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888 freq = psutil.cpu_freq() |
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889 self.assertEqual(freq.current, 200) |
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890 |
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891 |
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892 @unittest.skipIf(not LINUX, "LINUX only") |
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893 class TestSystemCPUStats(PsutilTestCase): |
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894 |
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895 def test_ctx_switches(self): |
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896 vmstat_value = vmstat("context switches") |
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897 psutil_value = psutil.cpu_stats().ctx_switches |
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898 self.assertAlmostEqual(vmstat_value, psutil_value, delta=500) |
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899 |
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900 def test_interrupts(self): |
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901 vmstat_value = vmstat("interrupts") |
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902 psutil_value = psutil.cpu_stats().interrupts |
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903 self.assertAlmostEqual(vmstat_value, psutil_value, delta=500) |
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904 |
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905 |
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906 @unittest.skipIf(not LINUX, "LINUX only") |
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907 class TestLoadAvg(PsutilTestCase): |
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908 |
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909 @unittest.skipIf(not HAS_GETLOADAVG, "not supported") |
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910 def test_getloadavg(self): |
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911 psutil_value = psutil.getloadavg() |
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912 with open("/proc/loadavg", "r") as f: |
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913 proc_value = f.read().split() |
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914 |
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915 self.assertAlmostEqual(float(proc_value[0]), psutil_value[0], delta=1) |
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916 self.assertAlmostEqual(float(proc_value[1]), psutil_value[1], delta=1) |
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917 self.assertAlmostEqual(float(proc_value[2]), psutil_value[2], delta=1) |
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918 |
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919 |
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920 # ===================================================================== |
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921 # --- system network |
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922 # ===================================================================== |
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923 |
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924 |
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925 @unittest.skipIf(not LINUX, "LINUX only") |
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926 class TestSystemNetIfAddrs(PsutilTestCase): |
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927 |
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928 def test_ips(self): |
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929 for name, addrs in psutil.net_if_addrs().items(): |
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930 for addr in addrs: |
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931 if addr.family == psutil.AF_LINK: |
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932 self.assertEqual(addr.address, get_mac_address(name)) |
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933 elif addr.family == socket.AF_INET: |
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934 self.assertEqual(addr.address, get_ipv4_address(name)) |
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935 self.assertEqual(addr.netmask, get_ipv4_netmask(name)) |
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936 if addr.broadcast is not None: |
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937 self.assertEqual(addr.broadcast, |
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938 get_ipv4_broadcast(name)) |
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939 else: |
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940 self.assertEqual(get_ipv4_broadcast(name), '0.0.0.0') |
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941 elif addr.family == socket.AF_INET6: |
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942 # IPv6 addresses can have a percent symbol at the end. |
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943 # E.g. these 2 are equivalent: |
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944 # "fe80::1ff:fe23:4567:890a" |
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945 # "fe80::1ff:fe23:4567:890a%eth0" |
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946 # That is the "zone id" portion, which usually is the name |
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947 # of the network interface. |
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948 address = addr.address.split('%')[0] |
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949 self.assertEqual(address, get_ipv6_address(name)) |
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|
950 |
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951 # XXX - not reliable when having virtual NICs installed by Docker. |
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952 # @unittest.skipIf(not which('ip'), "'ip' utility not available") |
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953 # def test_net_if_names(self): |
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954 # out = sh("ip addr").strip() |
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955 # nics = [x for x in psutil.net_if_addrs().keys() if ':' not in x] |
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956 # found = 0 |
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957 # for line in out.split('\n'): |
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958 # line = line.strip() |
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959 # if re.search(r"^\d+:", line): |
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960 # found += 1 |
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|
961 # name = line.split(':')[1].strip() |
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962 # self.assertIn(name, nics) |
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963 # self.assertEqual(len(nics), found, msg="%s\n---\n%s" % ( |
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964 # pprint.pformat(nics), out)) |
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|
965 |
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|
966 |
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|
967 @unittest.skipIf(not LINUX, "LINUX only") |
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|
968 class TestSystemNetIfStats(PsutilTestCase): |
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|
969 |
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|
970 def test_against_ifconfig(self): |
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971 for name, stats in psutil.net_if_stats().items(): |
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|
972 try: |
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973 out = sh("ifconfig %s" % name) |
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|
974 except RuntimeError: |
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|
975 pass |
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976 else: |
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977 self.assertEqual(stats.isup, 'RUNNING' in out, msg=out) |
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978 self.assertEqual(stats.mtu, |
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|
979 int(re.findall(r'(?i)MTU[: ](\d+)', out)[0])) |
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|
980 |
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|
981 def test_mtu(self): |
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982 for name, stats in psutil.net_if_stats().items(): |
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983 with open("/sys/class/net/%s/mtu" % name, "rt") as f: |
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|
984 self.assertEqual(stats.mtu, int(f.read().strip())) |
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|
985 |
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|
986 |
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|
987 @unittest.skipIf(not LINUX, "LINUX only") |
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988 class TestSystemNetIOCounters(PsutilTestCase): |
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989 |
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|
990 @retry_on_failure() |
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991 def test_against_ifconfig(self): |
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992 def ifconfig(nic): |
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993 ret = {} |
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994 out = sh("ifconfig %s" % name) |
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995 ret['packets_recv'] = int( |
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996 re.findall(r'RX packets[: ](\d+)', out)[0]) |
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997 ret['packets_sent'] = int( |
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998 re.findall(r'TX packets[: ](\d+)', out)[0]) |
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999 ret['errin'] = int(re.findall(r'errors[: ](\d+)', out)[0]) |
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1000 ret['errout'] = int(re.findall(r'errors[: ](\d+)', out)[1]) |
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1001 ret['dropin'] = int(re.findall(r'dropped[: ](\d+)', out)[0]) |
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1002 ret['dropout'] = int(re.findall(r'dropped[: ](\d+)', out)[1]) |
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1003 ret['bytes_recv'] = int( |
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1004 re.findall(r'RX (?:packets \d+ +)?bytes[: ](\d+)', out)[0]) |
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1005 ret['bytes_sent'] = int( |
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1006 re.findall(r'TX (?:packets \d+ +)?bytes[: ](\d+)', out)[0]) |
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1007 return ret |
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1008 |
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1009 nio = psutil.net_io_counters(pernic=True, nowrap=False) |
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1010 for name, stats in nio.items(): |
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1011 try: |
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1012 ifconfig_ret = ifconfig(name) |
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1013 except RuntimeError: |
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1014 continue |
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1015 self.assertAlmostEqual( |
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1016 stats.bytes_recv, ifconfig_ret['bytes_recv'], delta=1024 * 5) |
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1017 self.assertAlmostEqual( |
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1018 stats.bytes_sent, ifconfig_ret['bytes_sent'], delta=1024 * 5) |
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1019 self.assertAlmostEqual( |
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1020 stats.packets_recv, ifconfig_ret['packets_recv'], delta=1024) |
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1021 self.assertAlmostEqual( |
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1022 stats.packets_sent, ifconfig_ret['packets_sent'], delta=1024) |
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1023 self.assertAlmostEqual( |
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1024 stats.errin, ifconfig_ret['errin'], delta=10) |
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1025 self.assertAlmostEqual( |
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1026 stats.errout, ifconfig_ret['errout'], delta=10) |
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1027 self.assertAlmostEqual( |
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1028 stats.dropin, ifconfig_ret['dropin'], delta=10) |
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1029 self.assertAlmostEqual( |
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1030 stats.dropout, ifconfig_ret['dropout'], delta=10) |
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1031 |
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1032 |
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1033 @unittest.skipIf(not LINUX, "LINUX only") |
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1034 class TestSystemNetConnections(PsutilTestCase): |
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1035 |
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1036 @mock.patch('psutil._pslinux.socket.inet_ntop', side_effect=ValueError) |
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1037 @mock.patch('psutil._pslinux.supports_ipv6', return_value=False) |
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1038 def test_emulate_ipv6_unsupported(self, supports_ipv6, inet_ntop): |
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1039 # see: https://github.com/giampaolo/psutil/issues/623 |
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1040 try: |
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1041 s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) |
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1042 self.addCleanup(s.close) |
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1043 s.bind(("::1", 0)) |
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1044 except socket.error: |
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1045 pass |
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1046 psutil.net_connections(kind='inet6') |
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1047 |
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1048 def test_emulate_unix(self): |
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1049 with mock_open_content( |
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1050 '/proc/net/unix', |
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1051 textwrap.dedent("""\ |
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1052 0: 00000003 000 000 0001 03 462170 @/tmp/dbus-Qw2hMPIU3n |
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1053 0: 00000003 000 000 0001 03 35010 @/tmp/dbus-tB2X8h69BQ |
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1054 0: 00000003 000 000 0001 03 34424 @/tmp/dbus-cHy80Y8O |
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1055 000000000000000000000000000000000000000000000000000000 |
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1056 """)) as m: |
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1057 psutil.net_connections(kind='unix') |
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1058 assert m.called |
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1059 |
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1060 |
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1061 # ===================================================================== |
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1062 # --- system disks |
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1063 # ===================================================================== |
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1064 |
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1065 |
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1066 @unittest.skipIf(not LINUX, "LINUX only") |
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1067 class TestSystemDiskPartitions(PsutilTestCase): |
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1068 |
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1069 @unittest.skipIf(not hasattr(os, 'statvfs'), "os.statvfs() not available") |
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1070 @skip_on_not_implemented() |
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1071 def test_against_df(self): |
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1072 # test psutil.disk_usage() and psutil.disk_partitions() |
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1073 # against "df -a" |
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1074 def df(path): |
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1075 out = sh('df -P -B 1 "%s"' % path).strip() |
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1076 lines = out.split('\n') |
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1077 lines.pop(0) |
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1078 line = lines.pop(0) |
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1079 dev, total, used, free = line.split()[:4] |
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1080 if dev == 'none': |
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1081 dev = '' |
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1082 total, used, free = int(total), int(used), int(free) |
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1083 return dev, total, used, free |
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1084 |
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1085 for part in psutil.disk_partitions(all=False): |
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1086 usage = psutil.disk_usage(part.mountpoint) |
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1087 dev, total, used, free = df(part.mountpoint) |
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1088 self.assertEqual(usage.total, total) |
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1089 self.assertAlmostEqual(usage.free, free, |
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1090 delta=TOLERANCE_DISK_USAGE) |
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1091 self.assertAlmostEqual(usage.used, used, |
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1092 delta=TOLERANCE_DISK_USAGE) |
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1093 |
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1094 def test_zfs_fs(self): |
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1095 # Test that ZFS partitions are returned. |
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1096 with open("/proc/filesystems", "r") as f: |
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1097 data = f.read() |
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1098 if 'zfs' in data: |
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1099 for part in psutil.disk_partitions(): |
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1100 if part.fstype == 'zfs': |
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1101 break |
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1102 else: |
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1103 self.fail("couldn't find any ZFS partition") |
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1104 else: |
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1105 # No ZFS partitions on this system. Let's fake one. |
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1106 fake_file = io.StringIO(u("nodev\tzfs\n")) |
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1107 with mock.patch('psutil._common.open', |
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1108 return_value=fake_file, create=True) as m1: |
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1109 with mock.patch( |
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1110 'psutil._pslinux.cext.disk_partitions', |
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1111 return_value=[('/dev/sdb3', '/', 'zfs', 'rw')]) as m2: |
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1112 ret = psutil.disk_partitions() |
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1113 assert m1.called |
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1114 assert m2.called |
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1115 assert ret |
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1116 self.assertEqual(ret[0].fstype, 'zfs') |
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1117 |
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1118 def test_emulate_realpath_fail(self): |
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1119 # See: https://github.com/giampaolo/psutil/issues/1307 |
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1120 try: |
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1121 with mock.patch('os.path.realpath', |
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1122 return_value='/non/existent') as m: |
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1123 with self.assertRaises(FileNotFoundError): |
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1124 psutil.disk_partitions() |
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1125 assert m.called |
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1126 finally: |
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1127 psutil.PROCFS_PATH = "/proc" |
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1128 |
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1129 |
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1130 @unittest.skipIf(not LINUX, "LINUX only") |
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1131 class TestSystemDiskIoCounters(PsutilTestCase): |
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1132 |
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1133 def test_emulate_kernel_2_4(self): |
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1134 # Tests /proc/diskstats parsing format for 2.4 kernels, see: |
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1135 # https://github.com/giampaolo/psutil/issues/767 |
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1136 with mock_open_content( |
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1137 '/proc/diskstats', |
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1138 " 3 0 1 hda 2 3 4 5 6 7 8 9 10 11 12"): |
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1139 with mock.patch('psutil._pslinux.is_storage_device', |
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1140 return_value=True): |
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1141 ret = psutil.disk_io_counters(nowrap=False) |
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1142 self.assertEqual(ret.read_count, 1) |
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1143 self.assertEqual(ret.read_merged_count, 2) |
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1144 self.assertEqual(ret.read_bytes, 3 * SECTOR_SIZE) |
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1145 self.assertEqual(ret.read_time, 4) |
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1146 self.assertEqual(ret.write_count, 5) |
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1147 self.assertEqual(ret.write_merged_count, 6) |
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1148 self.assertEqual(ret.write_bytes, 7 * SECTOR_SIZE) |
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1149 self.assertEqual(ret.write_time, 8) |
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1150 self.assertEqual(ret.busy_time, 10) |
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1151 |
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1152 def test_emulate_kernel_2_6_full(self): |
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1153 # Tests /proc/diskstats parsing format for 2.6 kernels, |
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1154 # lines reporting all metrics: |
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1155 # https://github.com/giampaolo/psutil/issues/767 |
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1156 with mock_open_content( |
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1157 '/proc/diskstats', |
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1158 " 3 0 hda 1 2 3 4 5 6 7 8 9 10 11"): |
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1159 with mock.patch('psutil._pslinux.is_storage_device', |
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1160 return_value=True): |
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1161 ret = psutil.disk_io_counters(nowrap=False) |
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1162 self.assertEqual(ret.read_count, 1) |
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1163 self.assertEqual(ret.read_merged_count, 2) |
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1164 self.assertEqual(ret.read_bytes, 3 * SECTOR_SIZE) |
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1165 self.assertEqual(ret.read_time, 4) |
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1166 self.assertEqual(ret.write_count, 5) |
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1167 self.assertEqual(ret.write_merged_count, 6) |
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1168 self.assertEqual(ret.write_bytes, 7 * SECTOR_SIZE) |
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1169 self.assertEqual(ret.write_time, 8) |
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1170 self.assertEqual(ret.busy_time, 10) |
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1171 |
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1172 def test_emulate_kernel_2_6_limited(self): |
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1173 # Tests /proc/diskstats parsing format for 2.6 kernels, |
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1174 # where one line of /proc/partitions return a limited |
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1175 # amount of metrics when it bumps into a partition |
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1176 # (instead of a disk). See: |
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1177 # https://github.com/giampaolo/psutil/issues/767 |
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1178 with mock_open_content( |
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1179 '/proc/diskstats', |
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1180 " 3 1 hda 1 2 3 4"): |
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1181 with mock.patch('psutil._pslinux.is_storage_device', |
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1182 return_value=True): |
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1183 ret = psutil.disk_io_counters(nowrap=False) |
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1184 self.assertEqual(ret.read_count, 1) |
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1185 self.assertEqual(ret.read_bytes, 2 * SECTOR_SIZE) |
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1186 self.assertEqual(ret.write_count, 3) |
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1187 self.assertEqual(ret.write_bytes, 4 * SECTOR_SIZE) |
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1188 |
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1189 self.assertEqual(ret.read_merged_count, 0) |
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1190 self.assertEqual(ret.read_time, 0) |
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1191 self.assertEqual(ret.write_merged_count, 0) |
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1192 self.assertEqual(ret.write_time, 0) |
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1193 self.assertEqual(ret.busy_time, 0) |
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1194 |
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1195 def test_emulate_include_partitions(self): |
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1196 # Make sure that when perdisk=True disk partitions are returned, |
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1197 # see: |
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1198 # https://github.com/giampaolo/psutil/pull/1313#issuecomment-408626842 |
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1199 with mock_open_content( |
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1200 '/proc/diskstats', |
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1201 textwrap.dedent("""\ |
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1202 3 0 nvme0n1 1 2 3 4 5 6 7 8 9 10 11 |
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1203 3 0 nvme0n1p1 1 2 3 4 5 6 7 8 9 10 11 |
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1204 """)): |
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1205 with mock.patch('psutil._pslinux.is_storage_device', |
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1206 return_value=False): |
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1207 ret = psutil.disk_io_counters(perdisk=True, nowrap=False) |
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1208 self.assertEqual(len(ret), 2) |
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1209 self.assertEqual(ret['nvme0n1'].read_count, 1) |
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1210 self.assertEqual(ret['nvme0n1p1'].read_count, 1) |
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1211 self.assertEqual(ret['nvme0n1'].write_count, 5) |
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1212 self.assertEqual(ret['nvme0n1p1'].write_count, 5) |
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1213 |
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1214 def test_emulate_exclude_partitions(self): |
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1215 # Make sure that when perdisk=False partitions (e.g. 'sda1', |
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1216 # 'nvme0n1p1') are skipped and not included in the total count. |
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1217 # https://github.com/giampaolo/psutil/pull/1313#issuecomment-408626842 |
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1218 with mock_open_content( |
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1219 '/proc/diskstats', |
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1220 textwrap.dedent("""\ |
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1221 3 0 nvme0n1 1 2 3 4 5 6 7 8 9 10 11 |
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1222 3 0 nvme0n1p1 1 2 3 4 5 6 7 8 9 10 11 |
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1223 """)): |
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1224 with mock.patch('psutil._pslinux.is_storage_device', |
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1225 return_value=False): |
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1226 ret = psutil.disk_io_counters(perdisk=False, nowrap=False) |
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1227 self.assertIsNone(ret) |
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1228 |
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1229 # |
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1230 def is_storage_device(name): |
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1231 return name == 'nvme0n1' |
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1232 |
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1233 with mock_open_content( |
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1234 '/proc/diskstats', |
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1235 textwrap.dedent("""\ |
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1236 3 0 nvme0n1 1 2 3 4 5 6 7 8 9 10 11 |
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1237 3 0 nvme0n1p1 1 2 3 4 5 6 7 8 9 10 11 |
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1238 """)): |
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1239 with mock.patch('psutil._pslinux.is_storage_device', |
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1240 create=True, side_effect=is_storage_device): |
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1241 ret = psutil.disk_io_counters(perdisk=False, nowrap=False) |
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1242 self.assertEqual(ret.read_count, 1) |
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1243 self.assertEqual(ret.write_count, 5) |
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1244 |
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1245 def test_emulate_use_sysfs(self): |
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1246 def exists(path): |
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1247 if path == '/proc/diskstats': |
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1248 return False |
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1249 return True |
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1250 |
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1251 wprocfs = psutil.disk_io_counters(perdisk=True) |
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1252 with mock.patch('psutil._pslinux.os.path.exists', |
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1253 create=True, side_effect=exists): |
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1254 wsysfs = psutil.disk_io_counters(perdisk=True) |
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1255 self.assertEqual(len(wprocfs), len(wsysfs)) |
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1256 |
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1257 def test_emulate_not_impl(self): |
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1258 def exists(path): |
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1259 return False |
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1260 |
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1261 with mock.patch('psutil._pslinux.os.path.exists', |
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1262 create=True, side_effect=exists): |
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1263 self.assertRaises(NotImplementedError, psutil.disk_io_counters) |
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1264 |
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1265 |
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1266 # ===================================================================== |
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1267 # --- misc |
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1268 # ===================================================================== |
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1269 |
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1270 |
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1271 @unittest.skipIf(not LINUX, "LINUX only") |
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1272 class TestMisc(PsutilTestCase): |
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1273 |
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1274 def test_boot_time(self): |
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1275 vmstat_value = vmstat('boot time') |
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1276 psutil_value = psutil.boot_time() |
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1277 self.assertEqual(int(vmstat_value), int(psutil_value)) |
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1278 |
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1279 def test_no_procfs_on_import(self): |
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1280 my_procfs = self.get_testfn() |
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1281 os.mkdir(my_procfs) |
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1282 |
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1283 with open(os.path.join(my_procfs, 'stat'), 'w') as f: |
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1284 f.write('cpu 0 0 0 0 0 0 0 0 0 0\n') |
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1285 f.write('cpu0 0 0 0 0 0 0 0 0 0 0\n') |
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1286 f.write('cpu1 0 0 0 0 0 0 0 0 0 0\n') |
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1287 |
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1288 try: |
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1289 orig_open = open |
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1290 |
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1291 def open_mock(name, *args, **kwargs): |
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1292 if name.startswith('/proc'): |
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1293 raise IOError(errno.ENOENT, 'rejecting access for test') |
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1294 return orig_open(name, *args, **kwargs) |
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1295 |
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1296 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1297 with mock.patch(patch_point, side_effect=open_mock): |
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1298 reload_module(psutil) |
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1299 |
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1300 self.assertRaises(IOError, psutil.cpu_times) |
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1301 self.assertRaises(IOError, psutil.cpu_times, percpu=True) |
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1302 self.assertRaises(IOError, psutil.cpu_percent) |
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1303 self.assertRaises(IOError, psutil.cpu_percent, percpu=True) |
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1304 self.assertRaises(IOError, psutil.cpu_times_percent) |
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1305 self.assertRaises( |
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1306 IOError, psutil.cpu_times_percent, percpu=True) |
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1307 |
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1308 psutil.PROCFS_PATH = my_procfs |
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1309 |
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1310 self.assertEqual(psutil.cpu_percent(), 0) |
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1311 self.assertEqual(sum(psutil.cpu_times_percent()), 0) |
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1312 |
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1313 # since we don't know the number of CPUs at import time, |
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1314 # we awkwardly say there are none until the second call |
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1315 per_cpu_percent = psutil.cpu_percent(percpu=True) |
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1316 self.assertEqual(sum(per_cpu_percent), 0) |
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1317 |
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1318 # ditto awkward length |
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1319 per_cpu_times_percent = psutil.cpu_times_percent(percpu=True) |
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1320 self.assertEqual(sum(map(sum, per_cpu_times_percent)), 0) |
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1321 |
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1322 # much user, very busy |
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1323 with open(os.path.join(my_procfs, 'stat'), 'w') as f: |
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1324 f.write('cpu 1 0 0 0 0 0 0 0 0 0\n') |
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1325 f.write('cpu0 1 0 0 0 0 0 0 0 0 0\n') |
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1326 f.write('cpu1 1 0 0 0 0 0 0 0 0 0\n') |
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1327 |
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1328 self.assertNotEqual(psutil.cpu_percent(), 0) |
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1329 self.assertNotEqual( |
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1330 sum(psutil.cpu_percent(percpu=True)), 0) |
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1331 self.assertNotEqual(sum(psutil.cpu_times_percent()), 0) |
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1332 self.assertNotEqual( |
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1333 sum(map(sum, psutil.cpu_times_percent(percpu=True))), 0) |
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1334 finally: |
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1335 shutil.rmtree(my_procfs) |
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1336 reload_module(psutil) |
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1337 |
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1338 self.assertEqual(psutil.PROCFS_PATH, '/proc') |
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1339 |
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1340 def test_cpu_steal_decrease(self): |
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1341 # Test cumulative cpu stats decrease. We should ignore this. |
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1342 # See issue #1210. |
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1343 with mock_open_content( |
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1344 "/proc/stat", |
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1345 textwrap.dedent("""\ |
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1346 cpu 0 0 0 0 0 0 0 1 0 0 |
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1347 cpu0 0 0 0 0 0 0 0 1 0 0 |
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1348 cpu1 0 0 0 0 0 0 0 1 0 0 |
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1349 """).encode()) as m: |
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1350 # first call to "percent" functions should read the new stat file |
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1351 # and compare to the "real" file read at import time - so the |
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1352 # values are meaningless |
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1353 psutil.cpu_percent() |
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1354 assert m.called |
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1355 psutil.cpu_percent(percpu=True) |
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1356 psutil.cpu_times_percent() |
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1357 psutil.cpu_times_percent(percpu=True) |
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1358 |
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1359 with mock_open_content( |
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1360 "/proc/stat", |
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1361 textwrap.dedent("""\ |
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1362 cpu 1 0 0 0 0 0 0 0 0 0 |
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1363 cpu0 1 0 0 0 0 0 0 0 0 0 |
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1364 cpu1 1 0 0 0 0 0 0 0 0 0 |
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1365 """).encode()) as m: |
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1366 # Increase "user" while steal goes "backwards" to zero. |
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1367 cpu_percent = psutil.cpu_percent() |
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1368 assert m.called |
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1369 cpu_percent_percpu = psutil.cpu_percent(percpu=True) |
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1370 cpu_times_percent = psutil.cpu_times_percent() |
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1371 cpu_times_percent_percpu = psutil.cpu_times_percent(percpu=True) |
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1372 self.assertNotEqual(cpu_percent, 0) |
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1373 self.assertNotEqual(sum(cpu_percent_percpu), 0) |
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1374 self.assertNotEqual(sum(cpu_times_percent), 0) |
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1375 self.assertNotEqual(sum(cpu_times_percent), 100.0) |
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1376 self.assertNotEqual(sum(map(sum, cpu_times_percent_percpu)), 0) |
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1377 self.assertNotEqual(sum(map(sum, cpu_times_percent_percpu)), 100.0) |
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1378 self.assertEqual(cpu_times_percent.steal, 0) |
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1379 self.assertNotEqual(cpu_times_percent.user, 0) |
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1380 |
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1381 def test_boot_time_mocked(self): |
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1382 with mock.patch('psutil._common.open', create=True) as m: |
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1383 self.assertRaises( |
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1384 RuntimeError, |
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1385 psutil._pslinux.boot_time) |
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1386 assert m.called |
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1387 |
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1388 def test_users_mocked(self): |
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1389 # Make sure ':0' and ':0.0' (returned by C ext) are converted |
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1390 # to 'localhost'. |
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1391 with mock.patch('psutil._pslinux.cext.users', |
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1392 return_value=[('giampaolo', 'pts/2', ':0', |
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1393 1436573184.0, True, 2)]) as m: |
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1394 self.assertEqual(psutil.users()[0].host, 'localhost') |
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1395 assert m.called |
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1396 with mock.patch('psutil._pslinux.cext.users', |
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1397 return_value=[('giampaolo', 'pts/2', ':0.0', |
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1398 1436573184.0, True, 2)]) as m: |
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1399 self.assertEqual(psutil.users()[0].host, 'localhost') |
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1400 assert m.called |
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1401 # ...otherwise it should be returned as-is |
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1402 with mock.patch('psutil._pslinux.cext.users', |
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1403 return_value=[('giampaolo', 'pts/2', 'foo', |
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1404 1436573184.0, True, 2)]) as m: |
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1405 self.assertEqual(psutil.users()[0].host, 'foo') |
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1406 assert m.called |
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1407 |
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1408 def test_procfs_path(self): |
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1409 tdir = self.get_testfn() |
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1410 os.mkdir(tdir) |
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1411 try: |
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1412 psutil.PROCFS_PATH = tdir |
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1413 self.assertRaises(IOError, psutil.virtual_memory) |
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1414 self.assertRaises(IOError, psutil.cpu_times) |
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1415 self.assertRaises(IOError, psutil.cpu_times, percpu=True) |
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1416 self.assertRaises(IOError, psutil.boot_time) |
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1417 # self.assertRaises(IOError, psutil.pids) |
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1418 self.assertRaises(IOError, psutil.net_connections) |
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1419 self.assertRaises(IOError, psutil.net_io_counters) |
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1420 self.assertRaises(IOError, psutil.net_if_stats) |
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1421 # self.assertRaises(IOError, psutil.disk_io_counters) |
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1422 self.assertRaises(IOError, psutil.disk_partitions) |
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1423 self.assertRaises(psutil.NoSuchProcess, psutil.Process) |
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1424 finally: |
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1425 psutil.PROCFS_PATH = "/proc" |
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1426 |
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1427 @retry_on_failure() |
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1428 def test_issue_687(self): |
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1429 # In case of thread ID: |
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1430 # - pid_exists() is supposed to return False |
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1431 # - Process(tid) is supposed to work |
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1432 # - pids() should not return the TID |
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1433 # See: https://github.com/giampaolo/psutil/issues/687 |
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1434 t = ThreadTask() |
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1435 t.start() |
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1436 try: |
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1437 p = psutil.Process() |
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1438 threads = p.threads() |
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1439 self.assertEqual(len(threads), 2) |
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1440 tid = sorted(threads, key=lambda x: x.id)[1].id |
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1441 self.assertNotEqual(p.pid, tid) |
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1442 pt = psutil.Process(tid) |
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1443 pt.as_dict() |
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1444 self.assertNotIn(tid, psutil.pids()) |
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1445 finally: |
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1446 t.stop() |
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1447 |
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1448 def test_pid_exists_no_proc_status(self): |
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1449 # Internally pid_exists relies on /proc/{pid}/status. |
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1450 # Emulate a case where this file is empty in which case |
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1451 # psutil is supposed to fall back on using pids(). |
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1452 with mock_open_content("/proc/%s/status", "") as m: |
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1453 assert psutil.pid_exists(os.getpid()) |
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1454 assert m.called |
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1455 |
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1456 |
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1457 # ===================================================================== |
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1458 # --- sensors |
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1459 # ===================================================================== |
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1460 |
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1461 |
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1462 @unittest.skipIf(not LINUX, "LINUX only") |
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1463 @unittest.skipIf(not HAS_BATTERY, "no battery") |
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1464 class TestSensorsBattery(PsutilTestCase): |
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1465 |
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1466 @unittest.skipIf(not which("acpi"), "acpi utility not available") |
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1467 def test_percent(self): |
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1468 out = sh("acpi -b") |
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1469 acpi_value = int(out.split(",")[1].strip().replace('%', '')) |
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1470 psutil_value = psutil.sensors_battery().percent |
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1471 self.assertAlmostEqual(acpi_value, psutil_value, delta=1) |
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1472 |
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1473 def test_emulate_power_plugged(self): |
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1474 # Pretend the AC power cable is connected. |
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1475 def open_mock(name, *args, **kwargs): |
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1476 if name.endswith("AC0/online") or name.endswith("AC/online"): |
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1477 return io.BytesIO(b"1") |
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1478 else: |
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1479 return orig_open(name, *args, **kwargs) |
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1480 |
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1481 orig_open = open |
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1482 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1483 with mock.patch(patch_point, side_effect=open_mock) as m: |
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1484 self.assertEqual(psutil.sensors_battery().power_plugged, True) |
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1485 self.assertEqual( |
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1486 psutil.sensors_battery().secsleft, psutil.POWER_TIME_UNLIMITED) |
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1487 assert m.called |
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1488 |
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1489 def test_emulate_power_plugged_2(self): |
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1490 # Same as above but pretend /AC0/online does not exist in which |
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1491 # case code relies on /status file. |
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1492 def open_mock(name, *args, **kwargs): |
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1493 if name.endswith("AC0/online") or name.endswith("AC/online"): |
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1494 raise IOError(errno.ENOENT, "") |
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1495 elif name.endswith("/status"): |
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1496 return io.StringIO(u("charging")) |
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1497 else: |
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1498 return orig_open(name, *args, **kwargs) |
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1499 |
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1500 orig_open = open |
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1501 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1502 with mock.patch(patch_point, side_effect=open_mock) as m: |
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1503 self.assertEqual(psutil.sensors_battery().power_plugged, True) |
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1504 assert m.called |
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1505 |
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1506 def test_emulate_power_not_plugged(self): |
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1507 # Pretend the AC power cable is not connected. |
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1508 def open_mock(name, *args, **kwargs): |
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1509 if name.endswith("AC0/online") or name.endswith("AC/online"): |
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1510 return io.BytesIO(b"0") |
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1511 else: |
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1512 return orig_open(name, *args, **kwargs) |
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1513 |
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1514 orig_open = open |
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1515 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1516 with mock.patch(patch_point, side_effect=open_mock) as m: |
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1517 self.assertEqual(psutil.sensors_battery().power_plugged, False) |
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1518 assert m.called |
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1519 |
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1520 def test_emulate_power_not_plugged_2(self): |
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1521 # Same as above but pretend /AC0/online does not exist in which |
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1522 # case code relies on /status file. |
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1523 def open_mock(name, *args, **kwargs): |
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1524 if name.endswith("AC0/online") or name.endswith("AC/online"): |
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1525 raise IOError(errno.ENOENT, "") |
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1526 elif name.endswith("/status"): |
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1527 return io.StringIO(u("discharging")) |
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1528 else: |
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1529 return orig_open(name, *args, **kwargs) |
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1530 |
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|
1531 orig_open = open |
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|
1532 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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|
1533 with mock.patch(patch_point, side_effect=open_mock) as m: |
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|
1534 self.assertEqual(psutil.sensors_battery().power_plugged, False) |
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|
1535 assert m.called |
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|
1536 |
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|
1537 def test_emulate_power_undetermined(self): |
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|
1538 # Pretend we can't know whether the AC power cable not |
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|
1539 # connected (assert fallback to False). |
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1540 def open_mock(name, *args, **kwargs): |
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1541 if name.startswith("/sys/class/power_supply/AC0/online") or \ |
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|
1542 name.startswith("/sys/class/power_supply/AC/online"): |
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|
1543 raise IOError(errno.ENOENT, "") |
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1544 elif name.startswith("/sys/class/power_supply/BAT0/status"): |
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1545 return io.BytesIO(b"???") |
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1546 else: |
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1547 return orig_open(name, *args, **kwargs) |
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1548 |
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1549 orig_open = open |
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1550 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1551 with mock.patch(patch_point, side_effect=open_mock) as m: |
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1552 self.assertIsNone(psutil.sensors_battery().power_plugged) |
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1553 assert m.called |
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1554 |
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1555 def test_emulate_energy_full_0(self): |
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1556 # Emulate a case where energy_full files returns 0. |
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|
1557 with mock_open_content( |
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1558 "/sys/class/power_supply/BAT0/energy_full", b"0") as m: |
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1559 self.assertEqual(psutil.sensors_battery().percent, 0) |
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1560 assert m.called |
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1561 |
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1562 def test_emulate_energy_full_not_avail(self): |
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1563 # Emulate a case where energy_full file does not exist. |
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|
1564 # Expected fallback on /capacity. |
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1565 with mock_open_exception( |
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|
1566 "/sys/class/power_supply/BAT0/energy_full", |
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|
1567 IOError(errno.ENOENT, "")): |
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|
1568 with mock_open_exception( |
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1569 "/sys/class/power_supply/BAT0/charge_full", |
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|
1570 IOError(errno.ENOENT, "")): |
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|
1571 with mock_open_content( |
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1572 "/sys/class/power_supply/BAT0/capacity", b"88"): |
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1573 self.assertEqual(psutil.sensors_battery().percent, 88) |
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1574 |
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1575 def test_emulate_no_power(self): |
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1576 # Emulate a case where /AC0/online file nor /BAT0/status exist. |
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|
1577 with mock_open_exception( |
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1578 "/sys/class/power_supply/AC/online", |
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|
1579 IOError(errno.ENOENT, "")): |
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|
1580 with mock_open_exception( |
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1581 "/sys/class/power_supply/AC0/online", |
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1582 IOError(errno.ENOENT, "")): |
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1583 with mock_open_exception( |
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1584 "/sys/class/power_supply/BAT0/status", |
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1585 IOError(errno.ENOENT, "")): |
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1586 self.assertIsNone(psutil.sensors_battery().power_plugged) |
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1587 |
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|
1588 |
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1589 @unittest.skipIf(not LINUX, "LINUX only") |
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1590 class TestSensorsBatteryEmulated(PsutilTestCase): |
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1591 |
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1592 def test_it(self): |
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1593 def open_mock(name, *args, **kwargs): |
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1594 if name.endswith("/energy_now"): |
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1595 return io.StringIO(u("60000000")) |
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1596 elif name.endswith("/power_now"): |
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1597 return io.StringIO(u("0")) |
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1598 elif name.endswith("/energy_full"): |
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|
1599 return io.StringIO(u("60000001")) |
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1600 else: |
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|
1601 return orig_open(name, *args, **kwargs) |
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1602 |
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1603 orig_open = open |
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1604 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1605 with mock.patch('os.listdir', return_value=["BAT0"]) as mlistdir: |
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1606 with mock.patch(patch_point, side_effect=open_mock) as mopen: |
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1607 self.assertIsNotNone(psutil.sensors_battery()) |
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|
1608 assert mlistdir.called |
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1609 assert mopen.called |
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1610 |
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|
1611 |
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|
1612 @unittest.skipIf(not LINUX, "LINUX only") |
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|
1613 class TestSensorsTemperatures(PsutilTestCase): |
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1614 |
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|
1615 def test_emulate_class_hwmon(self): |
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1616 def open_mock(name, *args, **kwargs): |
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1617 if name.endswith('/name'): |
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|
1618 return io.StringIO(u("name")) |
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1619 elif name.endswith('/temp1_label'): |
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1620 return io.StringIO(u("label")) |
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|
1621 elif name.endswith('/temp1_input'): |
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|
1622 return io.BytesIO(b"30000") |
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|
1623 elif name.endswith('/temp1_max'): |
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|
1624 return io.BytesIO(b"40000") |
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|
1625 elif name.endswith('/temp1_crit'): |
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|
1626 return io.BytesIO(b"50000") |
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|
1627 else: |
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|
1628 return orig_open(name, *args, **kwargs) |
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|
1629 |
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|
1630 orig_open = open |
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|
1631 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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|
1632 with mock.patch(patch_point, side_effect=open_mock): |
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|
1633 # Test case with /sys/class/hwmon |
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|
1634 with mock.patch('glob.glob', |
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1635 return_value=['/sys/class/hwmon/hwmon0/temp1']): |
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|
1636 temp = psutil.sensors_temperatures()['name'][0] |
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|
1637 self.assertEqual(temp.label, 'label') |
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|
1638 self.assertEqual(temp.current, 30.0) |
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1639 self.assertEqual(temp.high, 40.0) |
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1640 self.assertEqual(temp.critical, 50.0) |
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1641 |
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1642 def test_emulate_class_thermal(self): |
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1643 def open_mock(name, *args, **kwargs): |
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1644 if name.endswith('0_temp'): |
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1645 return io.BytesIO(b"50000") |
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1646 elif name.endswith('temp'): |
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1647 return io.BytesIO(b"30000") |
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1648 elif name.endswith('0_type'): |
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1649 return io.StringIO(u("critical")) |
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1650 elif name.endswith('type'): |
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1651 return io.StringIO(u("name")) |
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1652 else: |
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1653 return orig_open(name, *args, **kwargs) |
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1654 |
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1655 def glob_mock(path): |
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1656 if path == '/sys/class/hwmon/hwmon*/temp*_*': |
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1657 return [] |
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1658 elif path == '/sys/class/hwmon/hwmon*/device/temp*_*': |
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1659 return [] |
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1660 elif path == '/sys/class/thermal/thermal_zone*': |
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1661 return ['/sys/class/thermal/thermal_zone0'] |
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1662 elif path == '/sys/class/thermal/thermal_zone0/trip_point*': |
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1663 return ['/sys/class/thermal/thermal_zone1/trip_point_0_type', |
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1664 '/sys/class/thermal/thermal_zone1/trip_point_0_temp'] |
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1665 return [] |
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|
1666 |
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1667 orig_open = open |
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1668 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1669 with mock.patch(patch_point, side_effect=open_mock): |
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1670 with mock.patch('glob.glob', create=True, side_effect=glob_mock): |
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1671 temp = psutil.sensors_temperatures()['name'][0] |
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1672 self.assertEqual(temp.label, '') |
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1673 self.assertEqual(temp.current, 30.0) |
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1674 self.assertEqual(temp.high, 50.0) |
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1675 self.assertEqual(temp.critical, 50.0) |
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1676 |
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1677 |
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1678 @unittest.skipIf(not LINUX, "LINUX only") |
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1679 class TestSensorsFans(PsutilTestCase): |
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1680 |
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1681 def test_emulate_data(self): |
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1682 def open_mock(name, *args, **kwargs): |
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1683 if name.endswith('/name'): |
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1684 return io.StringIO(u("name")) |
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1685 elif name.endswith('/fan1_label'): |
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1686 return io.StringIO(u("label")) |
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1687 elif name.endswith('/fan1_input'): |
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1688 return io.StringIO(u("2000")) |
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1689 else: |
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1690 return orig_open(name, *args, **kwargs) |
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1691 |
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1692 orig_open = open |
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1693 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1694 with mock.patch(patch_point, side_effect=open_mock): |
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1695 with mock.patch('glob.glob', |
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1696 return_value=['/sys/class/hwmon/hwmon2/fan1']): |
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1697 fan = psutil.sensors_fans()['name'][0] |
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1698 self.assertEqual(fan.label, 'label') |
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1699 self.assertEqual(fan.current, 2000) |
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1700 |
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1701 |
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|
1702 # ===================================================================== |
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1703 # --- test process |
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1704 # ===================================================================== |
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1705 |
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1706 |
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1707 @unittest.skipIf(not LINUX, "LINUX only") |
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|
1708 class TestProcess(PsutilTestCase): |
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1709 |
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|
1710 @retry_on_failure() |
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1711 def test_memory_full_info(self): |
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1712 testfn = self.get_testfn() |
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1713 src = textwrap.dedent(""" |
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|
1714 import time |
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|
1715 with open("%s", "w") as f: |
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|
1716 time.sleep(10) |
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|
1717 """ % testfn) |
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|
1718 sproc = self.pyrun(src) |
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|
1719 call_until(lambda: os.listdir('.'), "'%s' not in ret" % testfn) |
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|
1720 p = psutil.Process(sproc.pid) |
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|
1721 time.sleep(.1) |
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|
1722 mem = p.memory_full_info() |
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|
1723 maps = p.memory_maps(grouped=False) |
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|
1724 self.assertAlmostEqual( |
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|
1725 mem.uss, sum([x.private_dirty + x.private_clean for x in maps]), |
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1726 delta=4096) |
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|
1727 self.assertAlmostEqual( |
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|
1728 mem.pss, sum([x.pss for x in maps]), delta=4096) |
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1729 self.assertAlmostEqual( |
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|
1730 mem.swap, sum([x.swap for x in maps]), delta=4096) |
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1731 |
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|
1732 def test_memory_full_info_mocked(self): |
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1733 # See: https://github.com/giampaolo/psutil/issues/1222 |
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|
1734 with mock_open_content( |
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1735 "/proc/%s/smaps" % os.getpid(), |
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|
1736 textwrap.dedent("""\ |
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|
1737 fffff0 r-xp 00000000 00:00 0 [vsyscall] |
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1738 Size: 1 kB |
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1739 Rss: 2 kB |
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1740 Pss: 3 kB |
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1741 Shared_Clean: 4 kB |
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1742 Shared_Dirty: 5 kB |
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1743 Private_Clean: 6 kB |
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1744 Private_Dirty: 7 kB |
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1745 Referenced: 8 kB |
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1746 Anonymous: 9 kB |
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1747 LazyFree: 10 kB |
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1748 AnonHugePages: 11 kB |
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1749 ShmemPmdMapped: 12 kB |
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1750 Shared_Hugetlb: 13 kB |
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1751 Private_Hugetlb: 14 kB |
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1752 Swap: 15 kB |
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1753 SwapPss: 16 kB |
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1754 KernelPageSize: 17 kB |
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1755 MMUPageSize: 18 kB |
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1756 Locked: 19 kB |
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1757 VmFlags: rd ex |
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1758 """).encode()) as m: |
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1759 p = psutil.Process() |
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1760 mem = p.memory_full_info() |
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1761 assert m.called |
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1762 self.assertEqual(mem.uss, (6 + 7 + 14) * 1024) |
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1763 self.assertEqual(mem.pss, 3 * 1024) |
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1764 self.assertEqual(mem.swap, 15 * 1024) |
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1765 |
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1766 # On PYPY file descriptors are not closed fast enough. |
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1767 @unittest.skipIf(PYPY, "unreliable on PYPY") |
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1768 def test_open_files_mode(self): |
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1769 def get_test_file(fname): |
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1770 p = psutil.Process() |
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1771 giveup_at = time.time() + GLOBAL_TIMEOUT |
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1772 while True: |
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1773 for file in p.open_files(): |
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1774 if file.path == os.path.abspath(fname): |
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1775 return file |
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1776 elif time.time() > giveup_at: |
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1777 break |
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1778 raise RuntimeError("timeout looking for test file") |
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1779 |
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1780 # |
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1781 testfn = self.get_testfn() |
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1782 with open(testfn, "w"): |
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1783 self.assertEqual(get_test_file(testfn).mode, "w") |
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1784 with open(testfn, "r"): |
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1785 self.assertEqual(get_test_file(testfn).mode, "r") |
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1786 with open(testfn, "a"): |
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1787 self.assertEqual(get_test_file(testfn).mode, "a") |
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1788 # |
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1789 with open(testfn, "r+"): |
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1790 self.assertEqual(get_test_file(testfn).mode, "r+") |
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1791 with open(testfn, "w+"): |
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1792 self.assertEqual(get_test_file(testfn).mode, "r+") |
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1793 with open(testfn, "a+"): |
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1794 self.assertEqual(get_test_file(testfn).mode, "a+") |
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1795 # note: "x" bit is not supported |
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1796 if PY3: |
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1797 safe_rmpath(testfn) |
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1798 with open(testfn, "x"): |
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1799 self.assertEqual(get_test_file(testfn).mode, "w") |
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1800 safe_rmpath(testfn) |
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1801 with open(testfn, "x+"): |
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1802 self.assertEqual(get_test_file(testfn).mode, "r+") |
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1803 |
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1804 def test_open_files_file_gone(self): |
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1805 # simulates a file which gets deleted during open_files() |
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1806 # execution |
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1807 p = psutil.Process() |
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1808 files = p.open_files() |
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1809 with open(self.get_testfn(), 'w'): |
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1810 # give the kernel some time to see the new file |
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1811 call_until(p.open_files, "len(ret) != %i" % len(files)) |
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1812 with mock.patch('psutil._pslinux.os.readlink', |
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1813 side_effect=OSError(errno.ENOENT, "")) as m: |
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1814 files = p.open_files() |
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1815 assert not files |
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1816 assert m.called |
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1817 # also simulate the case where os.readlink() returns EINVAL |
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1818 # in which case psutil is supposed to 'continue' |
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1819 with mock.patch('psutil._pslinux.os.readlink', |
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1820 side_effect=OSError(errno.EINVAL, "")) as m: |
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1821 self.assertEqual(p.open_files(), []) |
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1822 assert m.called |
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1823 |
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1824 def test_open_files_fd_gone(self): |
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1825 # Simulate a case where /proc/{pid}/fdinfo/{fd} disappears |
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1826 # while iterating through fds. |
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1827 # https://travis-ci.org/giampaolo/psutil/jobs/225694530 |
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1828 p = psutil.Process() |
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1829 files = p.open_files() |
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1830 with open(self.get_testfn(), 'w'): |
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1831 # give the kernel some time to see the new file |
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1832 call_until(p.open_files, "len(ret) != %i" % len(files)) |
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1833 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1834 with mock.patch(patch_point, |
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1835 side_effect=IOError(errno.ENOENT, "")) as m: |
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1836 files = p.open_files() |
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1837 assert not files |
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1838 assert m.called |
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1839 |
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1840 # --- mocked tests |
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1841 |
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1842 def test_terminal_mocked(self): |
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1843 with mock.patch('psutil._pslinux._psposix.get_terminal_map', |
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1844 return_value={}) as m: |
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1845 self.assertIsNone(psutil._pslinux.Process(os.getpid()).terminal()) |
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1846 assert m.called |
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1847 |
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1848 # TODO: re-enable this test. |
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1849 # def test_num_ctx_switches_mocked(self): |
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1850 # with mock.patch('psutil._common.open', create=True) as m: |
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1851 # self.assertRaises( |
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1852 # NotImplementedError, |
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1853 # psutil._pslinux.Process(os.getpid()).num_ctx_switches) |
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1854 # assert m.called |
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1855 |
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1856 def test_cmdline_mocked(self): |
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1857 # see: https://github.com/giampaolo/psutil/issues/639 |
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1858 p = psutil.Process() |
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1859 fake_file = io.StringIO(u('foo\x00bar\x00')) |
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1860 with mock.patch('psutil._common.open', |
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1861 return_value=fake_file, create=True) as m: |
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1862 self.assertEqual(p.cmdline(), ['foo', 'bar']) |
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1863 assert m.called |
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1864 fake_file = io.StringIO(u('foo\x00bar\x00\x00')) |
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1865 with mock.patch('psutil._common.open', |
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1866 return_value=fake_file, create=True) as m: |
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1867 self.assertEqual(p.cmdline(), ['foo', 'bar', '']) |
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1868 assert m.called |
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1869 |
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1870 def test_cmdline_spaces_mocked(self): |
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1871 # see: https://github.com/giampaolo/psutil/issues/1179 |
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1872 p = psutil.Process() |
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1873 fake_file = io.StringIO(u('foo bar ')) |
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1874 with mock.patch('psutil._common.open', |
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1875 return_value=fake_file, create=True) as m: |
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1876 self.assertEqual(p.cmdline(), ['foo', 'bar']) |
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1877 assert m.called |
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1878 fake_file = io.StringIO(u('foo bar ')) |
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1879 with mock.patch('psutil._common.open', |
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1880 return_value=fake_file, create=True) as m: |
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1881 self.assertEqual(p.cmdline(), ['foo', 'bar', '']) |
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1882 assert m.called |
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1883 |
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1884 def test_cmdline_mixed_separators(self): |
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1885 # https://github.com/giampaolo/psutil/issues/ |
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1886 # 1179#issuecomment-552984549 |
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1887 p = psutil.Process() |
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1888 fake_file = io.StringIO(u('foo\x20bar\x00')) |
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1889 with mock.patch('psutil._common.open', |
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1890 return_value=fake_file, create=True) as m: |
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1891 self.assertEqual(p.cmdline(), ['foo', 'bar']) |
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1892 assert m.called |
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1893 |
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1894 def test_readlink_path_deleted_mocked(self): |
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1895 with mock.patch('psutil._pslinux.os.readlink', |
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1896 return_value='/home/foo (deleted)'): |
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1897 self.assertEqual(psutil.Process().exe(), "/home/foo") |
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1898 self.assertEqual(psutil.Process().cwd(), "/home/foo") |
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1899 |
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1900 def test_threads_mocked(self): |
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1901 # Test the case where os.listdir() returns a file (thread) |
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1902 # which no longer exists by the time we open() it (race |
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1903 # condition). threads() is supposed to ignore that instead |
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1904 # of raising NSP. |
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1905 def open_mock(name, *args, **kwargs): |
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1906 if name.startswith('/proc/%s/task' % os.getpid()): |
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1907 raise IOError(errno.ENOENT, "") |
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1908 else: |
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1909 return orig_open(name, *args, **kwargs) |
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1910 |
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1911 orig_open = open |
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1912 patch_point = 'builtins.open' if PY3 else '__builtin__.open' |
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1913 with mock.patch(patch_point, side_effect=open_mock) as m: |
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1914 ret = psutil.Process().threads() |
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1915 assert m.called |
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1916 self.assertEqual(ret, []) |
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1917 |
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1918 # ...but if it bumps into something != ENOENT we want an |
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1919 # exception. |
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1920 def open_mock(name, *args, **kwargs): |
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1921 if name.startswith('/proc/%s/task' % os.getpid()): |
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1922 raise IOError(errno.EPERM, "") |
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1923 else: |
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1924 return orig_open(name, *args, **kwargs) |
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1925 |
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1926 with mock.patch(patch_point, side_effect=open_mock): |
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1927 self.assertRaises(psutil.AccessDenied, psutil.Process().threads) |
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1928 |
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1929 def test_exe_mocked(self): |
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1930 with mock.patch('psutil._pslinux.readlink', |
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1931 side_effect=OSError(errno.ENOENT, "")) as m1: |
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1932 with mock.patch('psutil.Process.cmdline', |
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1933 side_effect=psutil.AccessDenied(0, "")) as m2: |
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1934 # No such file error; might be raised also if /proc/pid/exe |
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1935 # path actually exists for system processes with low pids |
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1936 # (about 0-20). In this case psutil is supposed to return |
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1937 # an empty string. |
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1938 ret = psutil.Process().exe() |
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1939 assert m1.called |
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1940 assert m2.called |
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1941 self.assertEqual(ret, "") |
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1942 |
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1943 # ...but if /proc/pid no longer exist we're supposed to treat |
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1944 # it as an alias for zombie process |
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1945 with mock.patch('psutil._pslinux.os.path.lexists', |
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1946 return_value=False): |
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1947 self.assertRaises( |
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1948 psutil.ZombieProcess, psutil.Process().exe) |
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1949 |
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1950 def test_issue_1014(self): |
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1951 # Emulates a case where smaps file does not exist. In this case |
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1952 # wrap_exception decorator should not raise NoSuchProcess. |
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1953 with mock_open_exception( |
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1954 '/proc/%s/smaps' % os.getpid(), |
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1955 IOError(errno.ENOENT, "")) as m: |
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1956 p = psutil.Process() |
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1957 with self.assertRaises(FileNotFoundError): |
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1958 p.memory_maps() |
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1959 assert m.called |
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1960 |
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1961 @unittest.skipIf(not HAS_RLIMIT, "not supported") |
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1962 def test_rlimit_zombie(self): |
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1963 # Emulate a case where rlimit() raises ENOSYS, which may |
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1964 # happen in case of zombie process: |
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1965 # https://travis-ci.org/giampaolo/psutil/jobs/51368273 |
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1966 with mock.patch("psutil._pslinux.prlimit", |
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1967 side_effect=OSError(errno.ENOSYS, "")) as m: |
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1968 p = psutil.Process() |
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1969 p.name() |
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1970 with self.assertRaises(psutil.ZombieProcess) as exc: |
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1971 p.rlimit(psutil.RLIMIT_NOFILE) |
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1972 assert m.called |
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1973 self.assertEqual(exc.exception.pid, p.pid) |
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1974 self.assertEqual(exc.exception.name, p.name()) |
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1975 |
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1976 def test_cwd_zombie(self): |
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1977 with mock.patch("psutil._pslinux.os.readlink", |
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1978 side_effect=OSError(errno.ENOENT, "")) as m: |
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1979 p = psutil.Process() |
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1980 p.name() |
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1981 with self.assertRaises(psutil.ZombieProcess) as exc: |
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1982 p.cwd() |
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1983 assert m.called |
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1984 self.assertEqual(exc.exception.pid, p.pid) |
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1985 self.assertEqual(exc.exception.name, p.name()) |
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1986 |
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1987 def test_stat_file_parsing(self): |
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1988 from psutil._pslinux import CLOCK_TICKS |
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1989 |
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1990 args = [ |
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1991 "0", # pid |
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1992 "(cat)", # name |
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1993 "Z", # status |
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1994 "1", # ppid |
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1995 "0", # pgrp |
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1996 "0", # session |
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1997 "0", # tty |
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1998 "0", # tpgid |
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1999 "0", # flags |
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2000 "0", # minflt |
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2001 "0", # cminflt |
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2002 "0", # majflt |
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2003 "0", # cmajflt |
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2004 "2", # utime |
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2005 "3", # stime |
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2006 "4", # cutime |
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2007 "5", # cstime |
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2008 "0", # priority |
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2009 "0", # nice |
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2010 "0", # num_threads |
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2011 "0", # itrealvalue |
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2012 "6", # starttime |
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2013 "0", # vsize |
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2014 "0", # rss |
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2015 "0", # rsslim |
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2016 "0", # startcode |
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2017 "0", # endcode |
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2018 "0", # startstack |
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2019 "0", # kstkesp |
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2020 "0", # kstkeip |
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2021 "0", # signal |
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2022 "0", # blocked |
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2023 "0", # sigignore |
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2024 "0", # sigcatch |
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2025 "0", # wchan |
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2026 "0", # nswap |
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2027 "0", # cnswap |
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2028 "0", # exit_signal |
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2029 "6", # processor |
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2030 "0", # rt priority |
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2031 "0", # policy |
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2032 "7", # delayacct_blkio_ticks |
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2033 ] |
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2034 content = " ".join(args).encode() |
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2035 with mock_open_content('/proc/%s/stat' % os.getpid(), content): |
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2036 p = psutil.Process() |
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2037 self.assertEqual(p.name(), 'cat') |
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2038 self.assertEqual(p.status(), psutil.STATUS_ZOMBIE) |
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2039 self.assertEqual(p.ppid(), 1) |
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2040 self.assertEqual( |
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2041 p.create_time(), 6 / CLOCK_TICKS + psutil.boot_time()) |
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2042 cpu = p.cpu_times() |
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2043 self.assertEqual(cpu.user, 2 / CLOCK_TICKS) |
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2044 self.assertEqual(cpu.system, 3 / CLOCK_TICKS) |
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2045 self.assertEqual(cpu.children_user, 4 / CLOCK_TICKS) |
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2046 self.assertEqual(cpu.children_system, 5 / CLOCK_TICKS) |
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2047 self.assertEqual(cpu.iowait, 7 / CLOCK_TICKS) |
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2048 self.assertEqual(p.cpu_num(), 6) |
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2049 |
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2050 def test_status_file_parsing(self): |
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2051 with mock_open_content( |
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2052 '/proc/%s/status' % os.getpid(), |
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2053 textwrap.dedent("""\ |
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2054 Uid:\t1000\t1001\t1002\t1003 |
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2055 Gid:\t1004\t1005\t1006\t1007 |
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2056 Threads:\t66 |
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2057 Cpus_allowed:\tf |
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2058 Cpus_allowed_list:\t0-7 |
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2059 voluntary_ctxt_switches:\t12 |
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2060 nonvoluntary_ctxt_switches:\t13""").encode()): |
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2061 p = psutil.Process() |
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2062 self.assertEqual(p.num_ctx_switches().voluntary, 12) |
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2063 self.assertEqual(p.num_ctx_switches().involuntary, 13) |
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2064 self.assertEqual(p.num_threads(), 66) |
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2065 uids = p.uids() |
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2066 self.assertEqual(uids.real, 1000) |
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2067 self.assertEqual(uids.effective, 1001) |
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2068 self.assertEqual(uids.saved, 1002) |
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2069 gids = p.gids() |
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2070 self.assertEqual(gids.real, 1004) |
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2071 self.assertEqual(gids.effective, 1005) |
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2072 self.assertEqual(gids.saved, 1006) |
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2073 self.assertEqual(p._proc._get_eligible_cpus(), list(range(0, 8))) |
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2074 |
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2075 |
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2076 @unittest.skipIf(not LINUX, "LINUX only") |
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2077 class TestProcessAgainstStatus(PsutilTestCase): |
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2078 """/proc/pid/stat and /proc/pid/status have many values in common. |
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2079 Whenever possible, psutil uses /proc/pid/stat (it's faster). |
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2080 For all those cases we check that the value found in |
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2081 /proc/pid/stat (by psutil) matches the one found in |
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2082 /proc/pid/status. |
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2083 """ |
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2084 |
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2085 @classmethod |
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2086 def setUpClass(cls): |
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2087 cls.proc = psutil.Process() |
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2088 |
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2089 def read_status_file(self, linestart): |
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2090 with psutil._psplatform.open_text( |
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2091 '/proc/%s/status' % self.proc.pid) as f: |
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2092 for line in f: |
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2093 line = line.strip() |
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2094 if line.startswith(linestart): |
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2095 value = line.partition('\t')[2] |
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2096 try: |
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2097 return int(value) |
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2098 except ValueError: |
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2099 return value |
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2100 raise ValueError("can't find %r" % linestart) |
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2101 |
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2102 def test_name(self): |
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2103 value = self.read_status_file("Name:") |
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2104 self.assertEqual(self.proc.name(), value) |
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2105 |
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2106 def test_status(self): |
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2107 value = self.read_status_file("State:") |
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2108 value = value[value.find('(') + 1:value.rfind(')')] |
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2109 value = value.replace(' ', '-') |
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2110 self.assertEqual(self.proc.status(), value) |
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2111 |
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2112 def test_ppid(self): |
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2113 value = self.read_status_file("PPid:") |
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2114 self.assertEqual(self.proc.ppid(), value) |
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2115 |
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2116 def test_num_threads(self): |
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2117 value = self.read_status_file("Threads:") |
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2118 self.assertEqual(self.proc.num_threads(), value) |
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2119 |
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2120 def test_uids(self): |
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2121 value = self.read_status_file("Uid:") |
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2122 value = tuple(map(int, value.split()[1:4])) |
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2123 self.assertEqual(self.proc.uids(), value) |
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2124 |
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2125 def test_gids(self): |
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2126 value = self.read_status_file("Gid:") |
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2127 value = tuple(map(int, value.split()[1:4])) |
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2128 self.assertEqual(self.proc.gids(), value) |
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2129 |
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2130 @retry_on_failure() |
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2131 def test_num_ctx_switches(self): |
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2132 value = self.read_status_file("voluntary_ctxt_switches:") |
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2133 self.assertEqual(self.proc.num_ctx_switches().voluntary, value) |
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2134 value = self.read_status_file("nonvoluntary_ctxt_switches:") |
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2135 self.assertEqual(self.proc.num_ctx_switches().involuntary, value) |
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2136 |
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2137 def test_cpu_affinity(self): |
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2138 value = self.read_status_file("Cpus_allowed_list:") |
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2139 if '-' in str(value): |
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2140 min_, max_ = map(int, value.split('-')) |
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2141 self.assertEqual( |
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2142 self.proc.cpu_affinity(), list(range(min_, max_ + 1))) |
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2143 |
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2144 def test_cpu_affinity_eligible_cpus(self): |
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2145 value = self.read_status_file("Cpus_allowed_list:") |
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2146 with mock.patch("psutil._pslinux.per_cpu_times") as m: |
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2147 self.proc._proc._get_eligible_cpus() |
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2148 if '-' in str(value): |
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2149 assert not m.called |
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2150 else: |
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2151 assert m.called |
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2152 |
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2153 |
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2154 # ===================================================================== |
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2155 # --- test utils |
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2156 # ===================================================================== |
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2157 |
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2158 |
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2159 @unittest.skipIf(not LINUX, "LINUX only") |
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2160 class TestUtils(PsutilTestCase): |
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2161 |
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2162 def test_readlink(self): |
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2163 with mock.patch("os.readlink", return_value="foo (deleted)") as m: |
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2164 self.assertEqual(psutil._psplatform.readlink("bar"), "foo") |
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2165 assert m.called |
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2166 |
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2167 def test_cat(self): |
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2168 testfn = self.get_testfn() |
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2169 with open(testfn, "wt") as f: |
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2170 f.write("foo ") |
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2171 self.assertEqual(psutil._psplatform.cat(testfn, binary=False), "foo") |
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2172 self.assertEqual(psutil._psplatform.cat(testfn, binary=True), b"foo") |
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2173 self.assertEqual( |
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2174 psutil._psplatform.cat(testfn + '??', fallback="bar"), "bar") |
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2175 |
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2176 |
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2177 if __name__ == '__main__': |
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2178 from psutil.tests.runner import run_from_name |
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2179 run_from_name(__file__) |