Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/coloredlogs/tests.py @ 0:4f3585e2f14b draft default tip
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author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 # Automated tests for the `coloredlogs' package. |
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2 # |
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3 # Author: Peter Odding <peter@peterodding.com> |
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4 # Last Change: December 10, 2020 |
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5 # URL: https://coloredlogs.readthedocs.io |
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6 |
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7 """Automated tests for the `coloredlogs` package.""" |
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8 |
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9 # Standard library modules. |
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10 import contextlib |
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11 import logging |
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12 import logging.handlers |
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13 import os |
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14 import re |
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15 import subprocess |
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16 import sys |
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17 import tempfile |
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18 |
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19 # External dependencies. |
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20 from humanfriendly.compat import StringIO |
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21 from humanfriendly.terminal import ANSI_COLOR_CODES, ANSI_CSI, ansi_style, ansi_wrap |
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22 from humanfriendly.testing import PatchedAttribute, PatchedItem, TestCase, retry |
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23 from humanfriendly.text import format, random_string |
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24 |
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25 # The module we're testing. |
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26 import coloredlogs |
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27 import coloredlogs.cli |
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28 from coloredlogs import ( |
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29 CHROOT_FILES, |
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30 ColoredFormatter, |
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31 NameNormalizer, |
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32 decrease_verbosity, |
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33 find_defined_levels, |
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34 find_handler, |
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35 find_hostname, |
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36 find_program_name, |
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37 find_username, |
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38 get_level, |
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39 increase_verbosity, |
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40 install, |
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41 is_verbose, |
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42 level_to_number, |
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43 match_stream_handler, |
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44 parse_encoded_styles, |
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45 set_level, |
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46 walk_propagation_tree, |
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47 ) |
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48 from coloredlogs.demo import demonstrate_colored_logging |
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49 from coloredlogs.syslog import SystemLogging, is_syslog_supported, match_syslog_handler |
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50 from coloredlogs.converter import ( |
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51 ColoredCronMailer, |
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52 EIGHT_COLOR_PALETTE, |
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53 capture, |
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54 convert, |
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55 ) |
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56 |
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57 # External test dependencies. |
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58 from capturer import CaptureOutput |
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59 from verboselogs import VerboseLogger |
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60 |
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61 # Compiled regular expression that matches a single line of output produced by |
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62 # the default log format (does not include matching of ANSI escape sequences). |
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63 PLAIN_TEXT_PATTERN = re.compile(r''' |
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64 (?P<date> \d{4}-\d{2}-\d{2} ) |
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65 \s (?P<time> \d{2}:\d{2}:\d{2} ) |
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66 \s (?P<hostname> \S+ ) |
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67 \s (?P<logger_name> \w+ ) |
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68 \[ (?P<process_id> \d+ ) \] |
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69 \s (?P<severity> [A-Z]+ ) |
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70 \s (?P<message> .* ) |
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71 ''', re.VERBOSE) |
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72 |
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73 # Compiled regular expression that matches a single line of output produced by |
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74 # the default log format with milliseconds=True. |
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75 PATTERN_INCLUDING_MILLISECONDS = re.compile(r''' |
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76 (?P<date> \d{4}-\d{2}-\d{2} ) |
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77 \s (?P<time> \d{2}:\d{2}:\d{2},\d{3} ) |
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78 \s (?P<hostname> \S+ ) |
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79 \s (?P<logger_name> \w+ ) |
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80 \[ (?P<process_id> \d+ ) \] |
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81 \s (?P<severity> [A-Z]+ ) |
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82 \s (?P<message> .* ) |
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83 ''', re.VERBOSE) |
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84 |
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85 |
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86 def setUpModule(): |
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87 """Speed up the tests by disabling the demo's artificial delay.""" |
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88 os.environ['COLOREDLOGS_DEMO_DELAY'] = '0' |
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89 coloredlogs.demo.DEMO_DELAY = 0 |
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90 |
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91 |
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92 class ColoredLogsTestCase(TestCase): |
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93 |
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94 """Container for the `coloredlogs` tests.""" |
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95 |
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96 def find_system_log(self): |
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97 """Find the system log file or skip the current test.""" |
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98 filename = ('/var/log/system.log' if sys.platform == 'darwin' else ( |
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99 '/var/log/syslog' if 'linux' in sys.platform else None |
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100 )) |
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101 if not filename: |
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102 self.skipTest("Location of system log file unknown!") |
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103 elif not os.path.isfile(filename): |
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104 self.skipTest("System log file not found! (%s)" % filename) |
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105 elif not os.access(filename, os.R_OK): |
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106 self.skipTest("Insufficient permissions to read system log file! (%s)" % filename) |
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107 else: |
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108 return filename |
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109 |
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110 def test_level_to_number(self): |
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111 """Make sure :func:`level_to_number()` works as intended.""" |
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112 # Make sure the default levels are translated as expected. |
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113 assert level_to_number('debug') == logging.DEBUG |
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114 assert level_to_number('info') == logging.INFO |
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115 assert level_to_number('warning') == logging.WARNING |
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116 assert level_to_number('error') == logging.ERROR |
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117 assert level_to_number('fatal') == logging.FATAL |
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118 # Make sure bogus level names don't blow up. |
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119 assert level_to_number('bogus-level') == logging.INFO |
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120 |
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121 def test_find_hostname(self): |
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122 """Make sure :func:`~find_hostname()` works correctly.""" |
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123 assert find_hostname() |
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124 # Create a temporary file as a placeholder for e.g. /etc/debian_chroot. |
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125 fd, temporary_file = tempfile.mkstemp() |
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126 try: |
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127 with open(temporary_file, 'w') as handle: |
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128 handle.write('first line\n') |
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129 handle.write('second line\n') |
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130 CHROOT_FILES.insert(0, temporary_file) |
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131 # Make sure the chroot file is being read. |
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132 assert find_hostname() == 'first line' |
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133 finally: |
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134 # Clean up. |
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135 CHROOT_FILES.pop(0) |
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136 os.unlink(temporary_file) |
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137 # Test that unreadable chroot files don't break coloredlogs. |
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138 try: |
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139 CHROOT_FILES.insert(0, temporary_file) |
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140 # Make sure that a usable value is still produced. |
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141 assert find_hostname() |
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142 finally: |
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143 # Clean up. |
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144 CHROOT_FILES.pop(0) |
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145 |
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146 def test_host_name_filter(self): |
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147 """Make sure :func:`install()` integrates with :class:`~coloredlogs.HostNameFilter()`.""" |
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148 install(fmt='%(hostname)s') |
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149 with CaptureOutput() as capturer: |
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150 logging.info("A truly insignificant message ..") |
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151 output = capturer.get_text() |
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152 assert find_hostname() in output |
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153 |
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154 def test_program_name_filter(self): |
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155 """Make sure :func:`install()` integrates with :class:`~coloredlogs.ProgramNameFilter()`.""" |
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156 install(fmt='%(programname)s') |
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157 with CaptureOutput() as capturer: |
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158 logging.info("A truly insignificant message ..") |
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159 output = capturer.get_text() |
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160 assert find_program_name() in output |
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161 |
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162 def test_username_filter(self): |
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163 """Make sure :func:`install()` integrates with :class:`~coloredlogs.UserNameFilter()`.""" |
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164 install(fmt='%(username)s') |
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165 with CaptureOutput() as capturer: |
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166 logging.info("A truly insignificant message ..") |
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167 output = capturer.get_text() |
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168 assert find_username() in output |
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169 |
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170 def test_system_logging(self): |
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171 """Make sure the :class:`coloredlogs.syslog.SystemLogging` context manager works.""" |
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172 system_log_file = self.find_system_log() |
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173 expected_message = random_string(50) |
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174 with SystemLogging(programname='coloredlogs-test-suite') as syslog: |
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175 if not syslog: |
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176 return self.skipTest("couldn't connect to syslog daemon") |
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177 # When I tried out the system logging support on macOS 10.13.1 on |
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178 # 2018-01-05 I found that while WARNING and ERROR messages show up |
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179 # in the system log DEBUG and INFO messages don't. This explains |
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180 # the importance of the level of the log message below. |
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181 logging.error("%s", expected_message) |
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182 # Retry the following assertion (for up to 60 seconds) to give the |
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183 # logging daemon time to write our log message to disk. This |
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184 # appears to be needed on MacOS workers on Travis CI, see: |
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185 # https://travis-ci.org/xolox/python-coloredlogs/jobs/325245853 |
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186 retry(lambda: check_contents(system_log_file, expected_message, True)) |
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187 |
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188 def test_system_logging_override(self): |
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189 """Make sure the :class:`coloredlogs.syslog.is_syslog_supported` respects the override.""" |
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190 with PatchedItem(os.environ, 'COLOREDLOGS_SYSLOG', 'true'): |
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191 assert is_syslog_supported() is True |
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192 with PatchedItem(os.environ, 'COLOREDLOGS_SYSLOG', 'false'): |
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193 assert is_syslog_supported() is False |
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194 |
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195 def test_syslog_shortcut_simple(self): |
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196 """Make sure that ``coloredlogs.install(syslog=True)`` works.""" |
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197 system_log_file = self.find_system_log() |
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198 expected_message = random_string(50) |
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199 with cleanup_handlers(): |
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200 # See test_system_logging() for the importance of this log level. |
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201 coloredlogs.install(syslog=True) |
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202 logging.error("%s", expected_message) |
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203 # See the comments in test_system_logging() on why this is retried. |
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204 retry(lambda: check_contents(system_log_file, expected_message, True)) |
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205 |
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206 def test_syslog_shortcut_enhanced(self): |
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207 """Make sure that ``coloredlogs.install(syslog='warning')`` works.""" |
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208 system_log_file = self.find_system_log() |
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209 the_expected_message = random_string(50) |
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210 not_an_expected_message = random_string(50) |
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211 with cleanup_handlers(): |
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212 # See test_system_logging() for the importance of these log levels. |
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213 coloredlogs.install(syslog='error') |
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214 logging.warning("%s", not_an_expected_message) |
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215 logging.error("%s", the_expected_message) |
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216 # See the comments in test_system_logging() on why this is retried. |
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217 retry(lambda: check_contents(system_log_file, the_expected_message, True)) |
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218 retry(lambda: check_contents(system_log_file, not_an_expected_message, False)) |
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219 |
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220 def test_name_normalization(self): |
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221 """Make sure :class:`~coloredlogs.NameNormalizer` works as intended.""" |
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222 nn = NameNormalizer() |
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223 for canonical_name in ['debug', 'info', 'warning', 'error', 'critical']: |
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224 assert nn.normalize_name(canonical_name) == canonical_name |
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225 assert nn.normalize_name(canonical_name.upper()) == canonical_name |
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226 assert nn.normalize_name('warn') == 'warning' |
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227 assert nn.normalize_name('fatal') == 'critical' |
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228 |
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229 def test_style_parsing(self): |
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230 """Make sure :func:`~coloredlogs.parse_encoded_styles()` works as intended.""" |
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231 encoded_styles = 'debug=green;warning=yellow;error=red;critical=red,bold' |
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232 decoded_styles = parse_encoded_styles(encoded_styles, normalize_key=lambda k: k.upper()) |
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233 assert sorted(decoded_styles.keys()) == sorted(['debug', 'warning', 'error', 'critical']) |
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234 assert decoded_styles['debug']['color'] == 'green' |
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235 assert decoded_styles['warning']['color'] == 'yellow' |
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236 assert decoded_styles['error']['color'] == 'red' |
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237 assert decoded_styles['critical']['color'] == 'red' |
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238 assert decoded_styles['critical']['bold'] is True |
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239 |
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240 def test_is_verbose(self): |
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241 """Make sure is_verbose() does what it should :-).""" |
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242 set_level(logging.INFO) |
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243 assert not is_verbose() |
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244 set_level(logging.DEBUG) |
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245 assert is_verbose() |
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246 set_level(logging.VERBOSE) |
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247 assert is_verbose() |
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248 |
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249 def test_increase_verbosity(self): |
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250 """Make sure increase_verbosity() respects default and custom levels.""" |
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251 # Start from a known state. |
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252 set_level(logging.INFO) |
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253 assert get_level() == logging.INFO |
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254 # INFO -> VERBOSE. |
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255 increase_verbosity() |
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256 assert get_level() == logging.VERBOSE |
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257 # VERBOSE -> DEBUG. |
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258 increase_verbosity() |
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259 assert get_level() == logging.DEBUG |
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260 # DEBUG -> SPAM. |
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261 increase_verbosity() |
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262 assert get_level() == logging.SPAM |
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263 # SPAM -> NOTSET. |
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264 increase_verbosity() |
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265 assert get_level() == logging.NOTSET |
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266 # NOTSET -> NOTSET. |
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267 increase_verbosity() |
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268 assert get_level() == logging.NOTSET |
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269 |
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270 def test_decrease_verbosity(self): |
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271 """Make sure decrease_verbosity() respects default and custom levels.""" |
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272 # Start from a known state. |
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273 set_level(logging.INFO) |
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274 assert get_level() == logging.INFO |
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275 # INFO -> NOTICE. |
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276 decrease_verbosity() |
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277 assert get_level() == logging.NOTICE |
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278 # NOTICE -> WARNING. |
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279 decrease_verbosity() |
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280 assert get_level() == logging.WARNING |
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281 # WARNING -> SUCCESS. |
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282 decrease_verbosity() |
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283 assert get_level() == logging.SUCCESS |
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284 # SUCCESS -> ERROR. |
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285 decrease_verbosity() |
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286 assert get_level() == logging.ERROR |
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287 # ERROR -> CRITICAL. |
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288 decrease_verbosity() |
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289 assert get_level() == logging.CRITICAL |
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290 # CRITICAL -> CRITICAL. |
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291 decrease_verbosity() |
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292 assert get_level() == logging.CRITICAL |
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293 |
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294 def test_level_discovery(self): |
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295 """Make sure find_defined_levels() always reports the levels defined in Python's standard library.""" |
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296 defined_levels = find_defined_levels() |
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297 level_values = defined_levels.values() |
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298 for number in (0, 10, 20, 30, 40, 50): |
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299 assert number in level_values |
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300 |
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301 def test_walk_propagation_tree(self): |
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302 """Make sure walk_propagation_tree() properly walks the tree of loggers.""" |
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303 root, parent, child, grand_child = self.get_logger_tree() |
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304 # Check the default mode of operation. |
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305 loggers = list(walk_propagation_tree(grand_child)) |
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306 assert loggers == [grand_child, child, parent, root] |
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307 # Now change the propagation (non-default mode of operation). |
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308 child.propagate = False |
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309 loggers = list(walk_propagation_tree(grand_child)) |
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310 assert loggers == [grand_child, child] |
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311 |
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312 def test_find_handler(self): |
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313 """Make sure find_handler() works as intended.""" |
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314 root, parent, child, grand_child = self.get_logger_tree() |
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315 # Add some handlers to the tree. |
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316 stream_handler = logging.StreamHandler() |
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317 syslog_handler = logging.handlers.SysLogHandler() |
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318 child.addHandler(stream_handler) |
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319 parent.addHandler(syslog_handler) |
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320 # Make sure the first matching handler is returned. |
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321 matched_handler, matched_logger = find_handler(grand_child, lambda h: isinstance(h, logging.Handler)) |
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322 assert matched_handler is stream_handler |
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323 # Make sure the first matching handler of the given type is returned. |
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324 matched_handler, matched_logger = find_handler(child, lambda h: isinstance(h, logging.handlers.SysLogHandler)) |
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325 assert matched_handler is syslog_handler |
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326 |
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327 def get_logger_tree(self): |
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328 """Create and return a tree of loggers.""" |
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329 # Get the root logger. |
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330 root = logging.getLogger() |
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331 # Create a top level logger for ourselves. |
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332 parent_name = random_string() |
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333 parent = logging.getLogger(parent_name) |
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334 # Create a child logger. |
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335 child_name = '%s.%s' % (parent_name, random_string()) |
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336 child = logging.getLogger(child_name) |
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337 # Create a grand child logger. |
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338 grand_child_name = '%s.%s' % (child_name, random_string()) |
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339 grand_child = logging.getLogger(grand_child_name) |
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340 return root, parent, child, grand_child |
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341 |
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342 def test_support_for_milliseconds(self): |
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343 """Make sure milliseconds are hidden by default but can be easily enabled.""" |
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344 # Check that the default log format doesn't include milliseconds. |
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345 stream = StringIO() |
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346 install(reconfigure=True, stream=stream) |
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347 logging.info("This should not include milliseconds.") |
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348 assert all(map(PLAIN_TEXT_PATTERN.match, stream.getvalue().splitlines())) |
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349 # Check that milliseconds can be enabled via a shortcut. |
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350 stream = StringIO() |
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351 install(milliseconds=True, reconfigure=True, stream=stream) |
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352 logging.info("This should include milliseconds.") |
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353 assert all(map(PATTERN_INCLUDING_MILLISECONDS.match, stream.getvalue().splitlines())) |
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354 |
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355 def test_support_for_milliseconds_directive(self): |
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356 """Make sure milliseconds using the ``%f`` directive are supported.""" |
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357 stream = StringIO() |
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358 install(reconfigure=True, stream=stream, datefmt='%Y-%m-%dT%H:%M:%S.%f%z') |
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359 logging.info("This should be timestamped according to #45.") |
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360 assert re.match(r'^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}[+-]\d{4}\s', stream.getvalue()) |
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361 |
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362 def test_plain_text_output_format(self): |
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363 """Inspect the plain text output of coloredlogs.""" |
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364 logger = VerboseLogger(random_string(25)) |
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365 stream = StringIO() |
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366 install(level=logging.NOTSET, logger=logger, stream=stream) |
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367 # Test that filtering on severity works. |
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368 logger.setLevel(logging.INFO) |
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369 logger.debug("No one should see this message.") |
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370 assert len(stream.getvalue().strip()) == 0 |
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371 # Test that the default output format looks okay in plain text. |
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372 logger.setLevel(logging.NOTSET) |
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373 for method, severity in ((logger.debug, 'DEBUG'), |
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374 (logger.info, 'INFO'), |
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375 (logger.verbose, 'VERBOSE'), |
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376 (logger.warning, 'WARNING'), |
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377 (logger.error, 'ERROR'), |
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378 (logger.critical, 'CRITICAL')): |
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379 # XXX Workaround for a regression in Python 3.7 caused by the |
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380 # Logger.isEnabledFor() method using stale cache entries. If we |
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381 # don't clear the cache then logger.isEnabledFor(logging.DEBUG) |
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382 # returns False and no DEBUG message is emitted. |
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383 try: |
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384 logger._cache.clear() |
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385 except AttributeError: |
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386 pass |
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387 # Prepare the text. |
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388 text = "This is a message with severity %r." % severity.lower() |
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389 # Log the message with the given severity. |
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390 method(text) |
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391 # Get the line of output generated by the handler. |
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392 output = stream.getvalue() |
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393 lines = output.splitlines() |
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394 last_line = lines[-1] |
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395 assert text in last_line |
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396 assert severity in last_line |
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397 assert PLAIN_TEXT_PATTERN.match(last_line) |
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398 |
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399 def test_force_enable(self): |
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400 """Make sure ANSI escape sequences can be forced (bypassing auto-detection).""" |
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401 interpreter = subprocess.Popen([ |
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402 sys.executable, "-c", ";".join([ |
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403 "import coloredlogs, logging", |
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404 "coloredlogs.install(isatty=True)", |
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405 "logging.info('Hello world')", |
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406 ]), |
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407 ], stderr=subprocess.PIPE) |
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408 stdout, stderr = interpreter.communicate() |
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409 assert ANSI_CSI in stderr.decode('UTF-8') |
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410 |
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411 def test_auto_disable(self): |
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412 """ |
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413 Make sure ANSI escape sequences are not emitted when logging output is being redirected. |
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414 |
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415 This is a regression test for https://github.com/xolox/python-coloredlogs/issues/100. |
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416 |
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417 It works as follows: |
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418 |
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419 1. We mock an interactive terminal using 'capturer' to ensure that this |
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420 test works inside test drivers that capture output (like pytest). |
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421 |
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422 2. We launch a subprocess (to ensure a clean process state) where |
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423 stderr is captured but stdout is not, emulating issue #100. |
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424 |
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425 3. The output captured on stderr contained ANSI escape sequences after |
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426 this test was written and before the issue was fixed, so now this |
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427 serves as a regression test for issue #100. |
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428 """ |
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429 with CaptureOutput(): |
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430 interpreter = subprocess.Popen([ |
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431 sys.executable, "-c", ";".join([ |
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432 "import coloredlogs, logging", |
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433 "coloredlogs.install()", |
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434 "logging.info('Hello world')", |
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435 ]), |
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436 ], stderr=subprocess.PIPE) |
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437 stdout, stderr = interpreter.communicate() |
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438 assert ANSI_CSI not in stderr.decode('UTF-8') |
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439 |
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440 def test_env_disable(self): |
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441 """Make sure ANSI escape sequences can be disabled using ``$NO_COLOR``.""" |
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442 with PatchedItem(os.environ, 'NO_COLOR', 'I like monochrome'): |
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443 with CaptureOutput() as capturer: |
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444 subprocess.check_call([ |
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445 sys.executable, "-c", ";".join([ |
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446 "import coloredlogs, logging", |
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447 "coloredlogs.install()", |
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448 "logging.info('Hello world')", |
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449 ]), |
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450 ]) |
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451 output = capturer.get_text() |
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452 assert ANSI_CSI not in output |
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453 |
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454 def test_html_conversion(self): |
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455 """Check the conversion from ANSI escape sequences to HTML.""" |
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456 # Check conversion of colored text. |
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457 for color_name, ansi_code in ANSI_COLOR_CODES.items(): |
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458 ansi_encoded_text = 'plain text followed by %s text' % ansi_wrap(color_name, color=color_name) |
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459 expected_html = format( |
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460 '<code>plain text followed by <span style="color:{css}">{name}</span> text</code>', |
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461 css=EIGHT_COLOR_PALETTE[ansi_code], name=color_name, |
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462 ) |
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463 self.assertEqual(expected_html, convert(ansi_encoded_text)) |
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464 # Check conversion of bright colored text. |
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465 expected_html = '<code><span style="color:#FF0">bright yellow</span></code>' |
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466 self.assertEqual(expected_html, convert(ansi_wrap('bright yellow', color='yellow', bright=True))) |
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467 # Check conversion of text with a background color. |
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468 expected_html = '<code><span style="background-color:#DE382B">red background</span></code>' |
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469 self.assertEqual(expected_html, convert(ansi_wrap('red background', background='red'))) |
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470 # Check conversion of text with a bright background color. |
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471 expected_html = '<code><span style="background-color:#F00">bright red background</span></code>' |
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472 self.assertEqual(expected_html, convert(ansi_wrap('bright red background', background='red', bright=True))) |
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473 # Check conversion of text that uses the 256 color mode palette as a foreground color. |
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474 expected_html = '<code><span style="color:#FFAF00">256 color mode foreground</span></code>' |
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475 self.assertEqual(expected_html, convert(ansi_wrap('256 color mode foreground', color=214))) |
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476 # Check conversion of text that uses the 256 color mode palette as a background color. |
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477 expected_html = '<code><span style="background-color:#AF0000">256 color mode background</span></code>' |
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478 self.assertEqual(expected_html, convert(ansi_wrap('256 color mode background', background=124))) |
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479 # Check that invalid 256 color mode indexes don't raise exceptions. |
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480 expected_html = '<code>plain text expected</code>' |
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481 self.assertEqual(expected_html, convert('\x1b[38;5;256mplain text expected\x1b[0m')) |
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482 # Check conversion of bold text. |
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483 expected_html = '<code><span style="font-weight:bold">bold text</span></code>' |
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484 self.assertEqual(expected_html, convert(ansi_wrap('bold text', bold=True))) |
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485 # Check conversion of underlined text. |
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486 expected_html = '<code><span style="text-decoration:underline">underlined text</span></code>' |
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487 self.assertEqual(expected_html, convert(ansi_wrap('underlined text', underline=True))) |
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488 # Check conversion of strike-through text. |
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489 expected_html = '<code><span style="text-decoration:line-through">strike-through text</span></code>' |
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490 self.assertEqual(expected_html, convert(ansi_wrap('strike-through text', strike_through=True))) |
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491 # Check conversion of inverse text. |
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492 expected_html = '<code><span style="background-color:#FFC706;color:#000">inverse</span></code>' |
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493 self.assertEqual(expected_html, convert(ansi_wrap('inverse', color='yellow', inverse=True))) |
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494 # Check conversion of URLs. |
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495 for sample_text in 'www.python.org', 'http://coloredlogs.rtfd.org', 'https://coloredlogs.rtfd.org': |
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496 sample_url = sample_text if '://' in sample_text else ('http://' + sample_text) |
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497 expected_html = '<code><a href="%s" style="color:inherit">%s</a></code>' % (sample_url, sample_text) |
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498 self.assertEqual(expected_html, convert(sample_text)) |
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499 # Check that the capture pattern for URLs doesn't match ANSI escape |
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500 # sequences and also check that the short hand for the 0 reset code is |
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501 # supported. These are tests for regressions of bugs found in |
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502 # coloredlogs <= 8.0. |
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503 reset_short_hand = '\x1b[0m' |
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504 blue_underlined = ansi_style(color='blue', underline=True) |
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505 ansi_encoded_text = '<%shttps://coloredlogs.readthedocs.io%s>' % (blue_underlined, reset_short_hand) |
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506 expected_html = ( |
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507 '<code><<span style="color:#006FB8;text-decoration:underline">' |
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508 '<a href="https://coloredlogs.readthedocs.io" style="color:inherit">' |
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509 'https://coloredlogs.readthedocs.io' |
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510 '</a></span>></code>' |
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511 ) |
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512 self.assertEqual(expected_html, convert(ansi_encoded_text)) |
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513 |
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514 def test_output_interception(self): |
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515 """Test capturing of output from external commands.""" |
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516 expected_output = 'testing, 1, 2, 3 ..' |
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517 actual_output = capture(['echo', expected_output]) |
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518 assert actual_output.strip() == expected_output.strip() |
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519 |
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520 def test_enable_colored_cron_mailer(self): |
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521 """Test that automatic ANSI to HTML conversion when running under ``cron`` can be enabled.""" |
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522 with PatchedItem(os.environ, 'CONTENT_TYPE', 'text/html'): |
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523 with ColoredCronMailer() as mailer: |
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524 assert mailer.is_enabled |
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525 |
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526 def test_disable_colored_cron_mailer(self): |
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527 """Test that automatic ANSI to HTML conversion when running under ``cron`` can be disabled.""" |
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528 with PatchedItem(os.environ, 'CONTENT_TYPE', 'text/plain'): |
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529 with ColoredCronMailer() as mailer: |
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530 assert not mailer.is_enabled |
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531 |
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532 def test_auto_install(self): |
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533 """Test :func:`coloredlogs.auto_install()`.""" |
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534 needle = random_string() |
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535 command_line = [sys.executable, '-c', 'import logging; logging.info(%r)' % needle] |
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536 # Sanity check that log messages aren't enabled by default. |
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537 with CaptureOutput() as capturer: |
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538 os.environ['COLOREDLOGS_AUTO_INSTALL'] = 'false' |
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539 subprocess.check_call(command_line) |
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540 output = capturer.get_text() |
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541 assert needle not in output |
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542 # Test that the $COLOREDLOGS_AUTO_INSTALL environment variable can be |
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543 # used to automatically call coloredlogs.install() during initialization. |
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544 with CaptureOutput() as capturer: |
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545 os.environ['COLOREDLOGS_AUTO_INSTALL'] = 'true' |
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546 subprocess.check_call(command_line) |
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547 output = capturer.get_text() |
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548 assert needle in output |
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549 |
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550 def test_cli_demo(self): |
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551 """Test the command line colored logging demonstration.""" |
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552 with CaptureOutput() as capturer: |
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553 main('coloredlogs', '--demo') |
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554 output = capturer.get_text() |
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555 # Make sure the output contains all of the expected logging level names. |
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556 for name in 'debug', 'info', 'warning', 'error', 'critical': |
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557 assert name.upper() in output |
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558 |
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559 def test_cli_conversion(self): |
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560 """Test the command line HTML conversion.""" |
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561 output = main('coloredlogs', '--convert', 'coloredlogs', '--demo', capture=True) |
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562 # Make sure the output is encoded as HTML. |
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563 assert '<span' in output |
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564 |
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565 def test_empty_conversion(self): |
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566 """ |
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567 Test that conversion of empty output produces no HTML. |
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568 |
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569 This test was added because I found that ``coloredlogs --convert`` when |
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570 used in a cron job could cause cron to send out what appeared to be |
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571 empty emails. On more careful inspection the body of those emails was |
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572 ``<code></code>``. By not emitting the wrapper element when no other |
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573 HTML is generated, cron will not send out an email. |
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574 """ |
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575 output = main('coloredlogs', '--convert', 'true', capture=True) |
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576 assert not output.strip() |
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577 |
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578 def test_implicit_usage_message(self): |
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579 """Test that the usage message is shown when no actions are given.""" |
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580 assert 'Usage:' in main('coloredlogs', capture=True) |
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581 |
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582 def test_explicit_usage_message(self): |
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583 """Test that the usage message is shown when ``--help`` is given.""" |
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584 assert 'Usage:' in main('coloredlogs', '--help', capture=True) |
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585 |
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586 def test_custom_record_factory(self): |
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587 """ |
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588 Test that custom LogRecord factories are supported. |
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589 |
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590 This test is a bit convoluted because the logging module suppresses |
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591 exceptions. We monkey patch the method suspected of encountering |
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592 exceptions so that we can tell after it was called whether any |
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593 exceptions occurred (despite the exceptions not propagating). |
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594 """ |
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595 if not hasattr(logging, 'getLogRecordFactory'): |
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596 return self.skipTest("this test requires Python >= 3.2") |
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597 |
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598 exceptions = [] |
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599 original_method = ColoredFormatter.format |
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600 original_factory = logging.getLogRecordFactory() |
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601 |
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602 def custom_factory(*args, **kwargs): |
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603 record = original_factory(*args, **kwargs) |
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604 record.custom_attribute = 0xdecafbad |
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605 return record |
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606 |
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607 def custom_method(*args, **kw): |
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608 try: |
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609 return original_method(*args, **kw) |
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610 except Exception as e: |
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611 exceptions.append(e) |
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612 raise |
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613 |
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614 with PatchedAttribute(ColoredFormatter, 'format', custom_method): |
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615 logging.setLogRecordFactory(custom_factory) |
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616 try: |
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617 demonstrate_colored_logging() |
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618 finally: |
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619 logging.setLogRecordFactory(original_factory) |
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620 |
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621 # Ensure that no exceptions were triggered. |
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622 assert not exceptions |
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623 |
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624 |
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625 def check_contents(filename, contents, match): |
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626 """Check if a line in a file contains an expected string.""" |
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627 with open(filename) as handle: |
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628 assert any(contents in line for line in handle) == match |
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629 |
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630 |
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631 def main(*arguments, **options): |
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632 """Wrap the command line interface to make it easier to test.""" |
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633 capture = options.get('capture', False) |
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634 saved_argv = sys.argv |
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635 saved_stdout = sys.stdout |
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636 try: |
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637 sys.argv = arguments |
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638 if capture: |
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639 sys.stdout = StringIO() |
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640 coloredlogs.cli.main() |
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641 if capture: |
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642 return sys.stdout.getvalue() |
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643 finally: |
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644 sys.argv = saved_argv |
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645 sys.stdout = saved_stdout |
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646 |
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647 |
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648 @contextlib.contextmanager |
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649 def cleanup_handlers(): |
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650 """Context manager to cleanup output handlers.""" |
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651 # There's nothing to set up so we immediately yield control. |
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652 yield |
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653 # After the with block ends we cleanup any output handlers. |
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654 for match_func in match_stream_handler, match_syslog_handler: |
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655 handler, logger = find_handler(logging.getLogger(), match_func) |
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656 if handler and logger: |
4f3585e2f14b
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
changeset
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657 logger.removeHandler(handler) |