Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/psutil/tests/test_unicode.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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0
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1 #!/usr/bin/env python3 |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. |
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5 # Use of this source code is governed by a BSD-style license that can be |
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6 # found in the LICENSE file. |
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7 |
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8 """ |
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9 Notes about unicode handling in psutil |
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10 ====================================== |
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11 |
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12 Starting from version 5.3.0 psutil adds unicode support, see: |
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13 https://github.com/giampaolo/psutil/issues/1040 |
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14 The notes below apply to *any* API returning a string such as |
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15 process exe(), cwd() or username(): |
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16 |
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17 * all strings are encoded by using the OS filesystem encoding |
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18 (sys.getfilesystemencoding()) which varies depending on the platform |
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19 (e.g. "UTF-8" on macOS, "mbcs" on Win) |
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20 * no API call is supposed to crash with UnicodeDecodeError |
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21 * instead, in case of badly encoded data returned by the OS, the |
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22 following error handlers are used to replace the corrupted characters in |
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23 the string: |
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24 * Python 3: sys.getfilesystemencodeerrors() (PY 3.6+) or |
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25 "surrogatescape" on POSIX and "replace" on Windows |
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26 * Python 2: "replace" |
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27 * on Python 2 all APIs return bytes (str type), never unicode |
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28 * on Python 2, you can go back to unicode by doing: |
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29 |
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30 >>> unicode(p.exe(), sys.getdefaultencoding(), errors="replace") |
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31 |
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32 For a detailed explanation of how psutil handles unicode see #1040. |
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33 |
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34 Tests |
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35 ===== |
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36 |
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37 List of APIs returning or dealing with a string: |
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38 ('not tested' means they are not tested to deal with non-ASCII strings): |
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39 |
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40 * Process.cmdline() |
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41 * Process.connections('unix') |
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42 * Process.cwd() |
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43 * Process.environ() |
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44 * Process.exe() |
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45 * Process.memory_maps() |
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46 * Process.name() |
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47 * Process.open_files() |
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48 * Process.username() (not tested) |
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49 |
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50 * disk_io_counters() (not tested) |
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51 * disk_partitions() (not tested) |
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52 * disk_usage(str) |
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53 * net_connections('unix') |
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54 * net_if_addrs() (not tested) |
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55 * net_if_stats() (not tested) |
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56 * net_io_counters() (not tested) |
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57 * sensors_fans() (not tested) |
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58 * sensors_temperatures() (not tested) |
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59 * users() (not tested) |
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60 |
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61 * WindowsService.binpath() (not tested) |
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62 * WindowsService.description() (not tested) |
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63 * WindowsService.display_name() (not tested) |
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64 * WindowsService.name() (not tested) |
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65 * WindowsService.status() (not tested) |
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66 * WindowsService.username() (not tested) |
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67 |
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68 In here we create a unicode path with a funky non-ASCII name and (where |
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69 possible) make psutil return it back (e.g. on name(), exe(), open_files(), |
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70 etc.) and make sure that: |
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71 |
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72 * psutil never crashes with UnicodeDecodeError |
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73 * the returned path matches |
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74 """ |
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75 |
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76 import os |
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77 import shutil |
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78 import traceback |
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79 import warnings |
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80 from contextlib import closing |
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81 |
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82 from psutil import BSD |
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83 from psutil import OPENBSD |
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84 from psutil import POSIX |
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85 from psutil import WINDOWS |
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86 from psutil._compat import PY3 |
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87 from psutil._compat import u |
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88 from psutil.tests import APPVEYOR |
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89 from psutil.tests import ASCII_FS |
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90 from psutil.tests import bind_unix_socket |
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91 from psutil.tests import chdir |
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92 from psutil.tests import CI_TESTING |
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93 from psutil.tests import copyload_shared_lib |
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94 from psutil.tests import create_exe |
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95 from psutil.tests import get_testfn |
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96 from psutil.tests import HAS_CONNECTIONS_UNIX |
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97 from psutil.tests import HAS_ENVIRON |
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98 from psutil.tests import HAS_MEMORY_MAPS |
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99 from psutil.tests import INVALID_UNICODE_SUFFIX |
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100 from psutil.tests import PsutilTestCase |
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101 from psutil.tests import PYPY |
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102 from psutil.tests import safe_mkdir |
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103 from psutil.tests import safe_rmpath |
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104 from psutil.tests import serialrun |
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105 from psutil.tests import skip_on_access_denied |
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106 from psutil.tests import spawn_testproc |
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107 from psutil.tests import terminate |
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108 from psutil.tests import TESTFN_PREFIX |
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109 from psutil.tests import UNICODE_SUFFIX |
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110 from psutil.tests import unittest |
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111 import psutil |
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112 |
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113 |
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114 if APPVEYOR: |
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115 def safe_rmpath(path): # NOQA |
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116 # TODO - this is quite random and I'm not sure why it happens, |
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117 # nor I can reproduce it locally: |
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118 # https://ci.appveyor.com/project/giampaolo/psutil/build/job/ |
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119 # jiq2cgd6stsbtn60 |
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120 # safe_rmpath() happens after reap_children() so this is weird |
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121 # Perhaps wait_procs() on Windows is broken? Maybe because |
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122 # of STILL_ACTIVE? |
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123 # https://github.com/giampaolo/psutil/blob/ |
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124 # 68c7a70728a31d8b8b58f4be6c4c0baa2f449eda/psutil/arch/ |
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125 # windows/process_info.c#L146 |
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126 from psutil.tests import safe_rmpath as rm |
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127 try: |
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128 return rm(path) |
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129 except WindowsError: |
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130 traceback.print_exc() |
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131 |
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132 |
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133 def try_unicode(suffix): |
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134 """Return True if both the fs and the subprocess module can |
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135 deal with a unicode file name. |
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136 """ |
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137 sproc = None |
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138 testfn = get_testfn(suffix=suffix) |
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139 try: |
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140 safe_rmpath(testfn) |
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141 create_exe(testfn) |
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142 sproc = spawn_testproc(cmd=[testfn]) |
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143 shutil.copyfile(testfn, testfn + '-2') |
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144 safe_rmpath(testfn + '-2') |
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145 except (UnicodeEncodeError, IOError): |
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146 return False |
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147 else: |
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148 return True |
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149 finally: |
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150 if sproc is not None: |
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151 terminate(sproc) |
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152 safe_rmpath(testfn) |
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153 |
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154 |
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155 # =================================================================== |
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156 # FS APIs |
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157 # =================================================================== |
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158 |
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159 |
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160 class BaseUnicodeTest(PsutilTestCase): |
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161 funky_suffix = None |
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162 |
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163 def setUp(self): |
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164 if self.funky_suffix is not None: |
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165 if not try_unicode(self.funky_suffix): |
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166 raise self.skipTest("can't handle unicode str") |
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167 |
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168 |
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169 @serialrun |
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170 @unittest.skipIf(ASCII_FS, "ASCII fs") |
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171 @unittest.skipIf(PYPY and not PY3, "too much trouble on PYPY2") |
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172 class TestFSAPIs(BaseUnicodeTest): |
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173 """Test FS APIs with a funky, valid, UTF8 path name.""" |
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174 |
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175 funky_suffix = UNICODE_SUFFIX |
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176 |
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177 @classmethod |
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178 def setUpClass(cls): |
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179 cls.funky_name = get_testfn(suffix=cls.funky_suffix) |
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180 create_exe(cls.funky_name) |
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181 |
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182 @classmethod |
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183 def tearDownClass(cls): |
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184 safe_rmpath(cls.funky_name) |
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185 |
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186 def expect_exact_path_match(self): |
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187 # Do not expect psutil to correctly handle unicode paths on |
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188 # Python 2 if os.listdir() is not able either. |
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189 here = '.' if isinstance(self.funky_name, str) else u('.') |
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190 with warnings.catch_warnings(): |
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191 warnings.simplefilter("ignore") |
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192 return self.funky_name in os.listdir(here) |
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193 |
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194 # --- |
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195 |
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196 def test_proc_exe(self): |
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197 subp = self.spawn_testproc(cmd=[self.funky_name]) |
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198 p = psutil.Process(subp.pid) |
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199 exe = p.exe() |
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200 self.assertIsInstance(exe, str) |
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201 if self.expect_exact_path_match(): |
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202 self.assertEqual(os.path.normcase(exe), |
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203 os.path.normcase(self.funky_name)) |
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204 |
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205 def test_proc_name(self): |
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206 subp = self.spawn_testproc(cmd=[self.funky_name]) |
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207 name = psutil.Process(subp.pid).name() |
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208 self.assertIsInstance(name, str) |
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209 if self.expect_exact_path_match(): |
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210 self.assertEqual(name, os.path.basename(self.funky_name)) |
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211 |
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212 def test_proc_cmdline(self): |
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213 subp = self.spawn_testproc(cmd=[self.funky_name]) |
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214 p = psutil.Process(subp.pid) |
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215 cmdline = p.cmdline() |
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216 for part in cmdline: |
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217 self.assertIsInstance(part, str) |
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218 if self.expect_exact_path_match(): |
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219 self.assertEqual(cmdline, [self.funky_name]) |
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220 |
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221 def test_proc_cwd(self): |
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222 dname = self.funky_name + "2" |
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223 self.addCleanup(safe_rmpath, dname) |
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224 safe_mkdir(dname) |
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225 with chdir(dname): |
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226 p = psutil.Process() |
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227 cwd = p.cwd() |
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228 self.assertIsInstance(p.cwd(), str) |
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229 if self.expect_exact_path_match(): |
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230 self.assertEqual(cwd, dname) |
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231 |
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232 @unittest.skipIf(PYPY and WINDOWS, "fails on PYPY + WINDOWS") |
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233 def test_proc_open_files(self): |
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234 p = psutil.Process() |
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235 start = set(p.open_files()) |
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236 with open(self.funky_name, 'rb'): |
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237 new = set(p.open_files()) |
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238 path = (new - start).pop().path |
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239 self.assertIsInstance(path, str) |
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240 if BSD and not path: |
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241 # XXX - see https://github.com/giampaolo/psutil/issues/595 |
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242 return self.skipTest("open_files on BSD is broken") |
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243 if self.expect_exact_path_match(): |
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244 self.assertEqual(os.path.normcase(path), |
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245 os.path.normcase(self.funky_name)) |
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246 |
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247 @unittest.skipIf(not POSIX, "POSIX only") |
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248 def test_proc_connections(self): |
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249 name = self.get_testfn(suffix=self.funky_suffix) |
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250 try: |
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251 sock = bind_unix_socket(name) |
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252 except UnicodeEncodeError: |
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253 if PY3: |
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254 raise |
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255 else: |
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256 raise unittest.SkipTest("not supported") |
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257 with closing(sock): |
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258 conn = psutil.Process().connections('unix')[0] |
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259 self.assertIsInstance(conn.laddr, str) |
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260 # AF_UNIX addr not set on OpenBSD |
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261 if not OPENBSD: # XXX |
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262 self.assertEqual(conn.laddr, name) |
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263 |
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264 @unittest.skipIf(not POSIX, "POSIX only") |
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265 @unittest.skipIf(not HAS_CONNECTIONS_UNIX, "can't list UNIX sockets") |
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266 @skip_on_access_denied() |
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267 def test_net_connections(self): |
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268 def find_sock(cons): |
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269 for conn in cons: |
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270 if os.path.basename(conn.laddr).startswith(TESTFN_PREFIX): |
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271 return conn |
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272 raise ValueError("connection not found") |
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273 |
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274 name = self.get_testfn(suffix=self.funky_suffix) |
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275 try: |
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276 sock = bind_unix_socket(name) |
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277 except UnicodeEncodeError: |
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278 if PY3: |
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279 raise |
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280 else: |
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281 raise unittest.SkipTest("not supported") |
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282 with closing(sock): |
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283 cons = psutil.net_connections(kind='unix') |
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284 # AF_UNIX addr not set on OpenBSD |
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285 if not OPENBSD: |
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286 conn = find_sock(cons) |
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287 self.assertIsInstance(conn.laddr, str) |
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288 self.assertEqual(conn.laddr, name) |
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289 |
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290 def test_disk_usage(self): |
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291 dname = self.funky_name + "2" |
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292 self.addCleanup(safe_rmpath, dname) |
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293 safe_mkdir(dname) |
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294 psutil.disk_usage(dname) |
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295 |
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296 @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported") |
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297 @unittest.skipIf(not PY3, "ctypes does not support unicode on PY2") |
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298 @unittest.skipIf(PYPY, "unstable on PYPY") |
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299 def test_memory_maps(self): |
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300 # XXX: on Python 2, using ctypes.CDLL with a unicode path |
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301 # opens a message box which blocks the test run. |
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302 with copyload_shared_lib(suffix=self.funky_suffix) as funky_path: |
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303 def normpath(p): |
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304 return os.path.realpath(os.path.normcase(p)) |
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305 libpaths = [normpath(x.path) |
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306 for x in psutil.Process().memory_maps()] |
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307 # ...just to have a clearer msg in case of failure |
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308 libpaths = [x for x in libpaths if TESTFN_PREFIX in x] |
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309 self.assertIn(normpath(funky_path), libpaths) |
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310 for path in libpaths: |
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311 self.assertIsInstance(path, str) |
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312 |
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313 |
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314 @unittest.skipIf(CI_TESTING, "unreliable on CI") |
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315 class TestFSAPIsWithInvalidPath(TestFSAPIs): |
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316 """Test FS APIs with a funky, invalid path name.""" |
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317 funky_suffix = INVALID_UNICODE_SUFFIX |
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318 |
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319 @classmethod |
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320 def expect_exact_path_match(cls): |
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321 # Invalid unicode names are supposed to work on Python 2. |
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322 return True |
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323 |
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324 |
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325 # =================================================================== |
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326 # Non fs APIs |
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327 # =================================================================== |
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328 |
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329 |
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330 class TestNonFSAPIS(BaseUnicodeTest): |
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331 """Unicode tests for non fs-related APIs.""" |
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332 funky_suffix = UNICODE_SUFFIX if PY3 else 'è' |
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333 |
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334 @unittest.skipIf(not HAS_ENVIRON, "not supported") |
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335 @unittest.skipIf(PYPY and WINDOWS, "segfaults on PYPY + WINDOWS") |
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336 def test_proc_environ(self): |
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337 # Note: differently from others, this test does not deal |
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338 # with fs paths. On Python 2 subprocess module is broken as |
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339 # it's not able to handle with non-ASCII env vars, so |
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340 # we use "è", which is part of the extended ASCII table |
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341 # (unicode point <= 255). |
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342 env = os.environ.copy() |
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343 env['FUNNY_ARG'] = self.funky_suffix |
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344 sproc = self.spawn_testproc(env=env) |
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345 p = psutil.Process(sproc.pid) |
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346 env = p.environ() |
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347 for k, v in env.items(): |
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348 self.assertIsInstance(k, str) |
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349 self.assertIsInstance(v, str) |
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350 self.assertEqual(env['FUNNY_ARG'], self.funky_suffix) |
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351 |
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352 |
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353 if __name__ == '__main__': |
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354 from psutil.tests.runner import run_from_name |
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355 run_from_name(__file__) |