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annotate planemo/lib/python3.7/site-packages/psutil/tests/test_unicode.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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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 CIRRUS
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94 from psutil.tests import copyload_shared_lib
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95 from psutil.tests import create_exe
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96 from psutil.tests import get_testfn
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97 from psutil.tests import HAS_CONNECTIONS_UNIX
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98 from psutil.tests import HAS_ENVIRON
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99 from psutil.tests import HAS_MEMORY_MAPS
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100 from psutil.tests import INVALID_UNICODE_SUFFIX
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101 from psutil.tests import PsutilTestCase
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102 from psutil.tests import PYPY
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103 from psutil.tests import safe_mkdir
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104 from psutil.tests import safe_rmpath
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105 from psutil.tests import serialrun
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106 from psutil.tests import skip_on_access_denied
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107 from psutil.tests import spawn_testproc
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108 from psutil.tests import terminate
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109 from psutil.tests import TESTFN_PREFIX
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110 from psutil.tests import UNICODE_SUFFIX
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111 from psutil.tests import unittest
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112 import psutil
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113
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114
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115 if APPVEYOR:
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116 def safe_rmpath(path): # NOQA
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117 # TODO - this is quite random and I'm not sure why it happens,
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118 # nor I can reproduce it locally:
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119 # https://ci.appveyor.com/project/giampaolo/psutil/build/job/
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120 # jiq2cgd6stsbtn60
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121 # safe_rmpath() happens after reap_children() so this is weird
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122 # Perhaps wait_procs() on Windows is broken? Maybe because
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123 # of STILL_ACTIVE?
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124 # https://github.com/giampaolo/psutil/blob/
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125 # 68c7a70728a31d8b8b58f4be6c4c0baa2f449eda/psutil/arch/
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126 # windows/process_info.c#L146
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127 from psutil.tests import safe_rmpath as _rm
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128 try:
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129 return _rm(path)
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130 except WindowsError:
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131 traceback.print_exc()
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132
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133
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134 def try_unicode(suffix):
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135 """Return True if both the fs and the subprocess module can
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136 deal with a unicode file name.
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137 """
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138 if PY3:
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139 return True
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140 sproc = None
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141 testfn = get_testfn(suffix=suffix)
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142 try:
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143 safe_rmpath(testfn)
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144 create_exe(testfn)
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145 sproc = spawn_testproc(cmd=[testfn])
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146 shutil.copyfile(testfn, testfn + '-2')
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147 safe_rmpath(testfn + '-2')
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148 except (UnicodeEncodeError, IOError):
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149 return False
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150 else:
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151 return True
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152 finally:
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153 if sproc is not None:
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154 terminate(sproc)
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155 safe_rmpath(testfn)
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156
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157
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158 # ===================================================================
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159 # FS APIs
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160 # ===================================================================
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161
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162
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163 @serialrun
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164 @unittest.skipIf(ASCII_FS, "ASCII fs")
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165 @unittest.skipIf(PYPY and not PY3, "too much trouble on PYPY2")
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166 class _BaseFSAPIsTests(object):
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167 funky_suffix = None
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168
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169 @classmethod
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170 def setUpClass(cls):
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171 cls.funky_name = get_testfn(suffix=cls.funky_suffix)
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172 create_exe(cls.funky_name)
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173
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174 @classmethod
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175 def tearDownClass(cls):
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176 safe_rmpath(cls.funky_name)
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177
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178 def expect_exact_path_match(self):
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179 raise NotImplementedError("must be implemented in subclass")
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180
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181 # ---
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182
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183 def test_proc_exe(self):
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184 subp = self.spawn_testproc(cmd=[self.funky_name])
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185 p = psutil.Process(subp.pid)
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186 exe = p.exe()
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187 self.assertIsInstance(exe, str)
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188 if self.expect_exact_path_match():
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189 self.assertEqual(os.path.normcase(exe),
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190 os.path.normcase(self.funky_name))
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191
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192 def test_proc_name(self):
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193 subp = self.spawn_testproc(cmd=[self.funky_name])
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194 name = psutil.Process(subp.pid).name()
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195 self.assertIsInstance(name, str)
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196 if self.expect_exact_path_match():
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197 self.assertEqual(name, os.path.basename(self.funky_name))
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198
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199 def test_proc_cmdline(self):
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200 subp = self.spawn_testproc(cmd=[self.funky_name])
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201 p = psutil.Process(subp.pid)
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202 cmdline = p.cmdline()
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203 for part in cmdline:
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204 self.assertIsInstance(part, str)
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205 if self.expect_exact_path_match():
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206 self.assertEqual(cmdline, [self.funky_name])
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207
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208 def test_proc_cwd(self):
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209 dname = self.funky_name + "2"
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210 self.addCleanup(safe_rmpath, dname)
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211 safe_mkdir(dname)
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212 with chdir(dname):
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213 p = psutil.Process()
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214 cwd = p.cwd()
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215 self.assertIsInstance(p.cwd(), str)
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216 if self.expect_exact_path_match():
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217 self.assertEqual(cwd, dname)
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218
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219 @unittest.skipIf(PYPY and WINDOWS, "fails on PYPY + WINDOWS")
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220 def test_proc_open_files(self):
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221 p = psutil.Process()
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222 start = set(p.open_files())
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223 with open(self.funky_name, 'rb'):
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224 new = set(p.open_files())
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225 path = (new - start).pop().path
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226 self.assertIsInstance(path, str)
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227 if BSD and not path:
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228 # XXX - see https://github.com/giampaolo/psutil/issues/595
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229 return self.skipTest("open_files on BSD is broken")
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230 if self.expect_exact_path_match():
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231 self.assertEqual(os.path.normcase(path),
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232 os.path.normcase(self.funky_name))
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233
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234 @unittest.skipIf(not POSIX, "POSIX only")
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235 def test_proc_connections(self):
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236 name = self.get_testfn(suffix=self.funky_suffix)
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237 try:
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238 sock = bind_unix_socket(name)
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239 except UnicodeEncodeError:
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240 if PY3:
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241 raise
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242 else:
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243 raise unittest.SkipTest("not supported")
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244 with closing(sock):
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245 conn = psutil.Process().connections('unix')[0]
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246 self.assertIsInstance(conn.laddr, str)
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247 # AF_UNIX addr not set on OpenBSD
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248 if not OPENBSD and not CIRRUS: # XXX
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249 self.assertEqual(conn.laddr, name)
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250
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251 @unittest.skipIf(not POSIX, "POSIX only")
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252 @unittest.skipIf(not HAS_CONNECTIONS_UNIX, "can't list UNIX sockets")
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253 @skip_on_access_denied()
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254 def test_net_connections(self):
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255 def find_sock(cons):
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256 for conn in cons:
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257 if os.path.basename(conn.laddr).startswith(TESTFN_PREFIX):
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258 return conn
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259 raise ValueError("connection not found")
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260
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261 name = self.get_testfn(suffix=self.funky_suffix)
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262 try:
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263 sock = bind_unix_socket(name)
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264 except UnicodeEncodeError:
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265 if PY3:
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266 raise
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267 else:
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268 raise unittest.SkipTest("not supported")
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269 with closing(sock):
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270 cons = psutil.net_connections(kind='unix')
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271 # AF_UNIX addr not set on OpenBSD
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272 if not OPENBSD:
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273 conn = find_sock(cons)
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274 self.assertIsInstance(conn.laddr, str)
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275 self.assertEqual(conn.laddr, name)
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276
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277 def test_disk_usage(self):
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278 dname = self.funky_name + "2"
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279 self.addCleanup(safe_rmpath, dname)
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280 safe_mkdir(dname)
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281 psutil.disk_usage(dname)
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282
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283 @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported")
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284 @unittest.skipIf(not PY3, "ctypes does not support unicode on PY2")
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285 @unittest.skipIf(PYPY and WINDOWS,
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286 "copyload_shared_lib() unsupported on PYPY + WINDOWS")
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287 def test_memory_maps(self):
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288 # XXX: on Python 2, using ctypes.CDLL with a unicode path
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289 # opens a message box which blocks the test run.
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290 with copyload_shared_lib(suffix=self.funky_suffix) as funky_path:
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291 def normpath(p):
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292 return os.path.realpath(os.path.normcase(p))
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293 libpaths = [normpath(x.path)
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294 for x in psutil.Process().memory_maps()]
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295 # ...just to have a clearer msg in case of failure
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296 libpaths = [x for x in libpaths if TESTFN_PREFIX in x]
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297 self.assertIn(normpath(funky_path), libpaths)
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298 for path in libpaths:
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299 self.assertIsInstance(path, str)
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300
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301
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302 # https://travis-ci.org/giampaolo/psutil/jobs/440073249
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303 # @unittest.skipIf(PYPY and TRAVIS, "unreliable on PYPY + TRAVIS")
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304 # @unittest.skipIf(MACOS and TRAVIS, "unreliable on TRAVIS") # TODO
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305 @unittest.skipIf(not try_unicode(UNICODE_SUFFIX),
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306 "can't deal with unicode str")
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307 class TestFSAPIs(_BaseFSAPIsTests, PsutilTestCase):
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308 """Test FS APIs with a funky, valid, UTF8 path name."""
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309 funky_suffix = UNICODE_SUFFIX
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310
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311 def expect_exact_path_match(self):
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312 # Do not expect psutil to correctly handle unicode paths on
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313 # Python 2 if os.listdir() is not able either.
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314 here = '.' if isinstance(self.funky_name, str) else u('.')
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315 with warnings.catch_warnings():
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316 warnings.simplefilter("ignore")
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317 return self.funky_name in os.listdir(here)
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318
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319
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320 @unittest.skipIf(CI_TESTING, "unreliable on CI")
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321 @unittest.skipIf(not try_unicode(INVALID_UNICODE_SUFFIX),
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322 "can't deal with invalid unicode str")
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323 class TestFSAPIsWithInvalidPath(_BaseFSAPIsTests, PsutilTestCase):
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324 """Test FS APIs with a funky, invalid path name."""
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325 funky_suffix = INVALID_UNICODE_SUFFIX
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326
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327 @classmethod
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328 def expect_exact_path_match(cls):
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329 # Invalid unicode names are supposed to work on Python 2.
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330 return True
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331
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332
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333 # ===================================================================
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334 # Non fs APIs
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335 # ===================================================================
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336
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337
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338 class TestNonFSAPIS(PsutilTestCase):
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339 """Unicode tests for non fs-related APIs."""
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340
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341 @unittest.skipIf(not HAS_ENVIRON, "not supported")
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342 @unittest.skipIf(PYPY and WINDOWS, "segfaults on PYPY + WINDOWS")
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343 def test_proc_environ(self):
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344 # Note: differently from others, this test does not deal
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345 # with fs paths. On Python 2 subprocess module is broken as
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346 # it's not able to handle with non-ASCII env vars, so
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347 # we use "è", which is part of the extended ASCII table
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348 # (unicode point <= 255).
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349 env = os.environ.copy()
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350 funky_str = UNICODE_SUFFIX if PY3 else 'è'
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351 env['FUNNY_ARG'] = funky_str
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352 sproc = self.spawn_testproc(env=env)
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353 p = psutil.Process(sproc.pid)
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354 env = p.environ()
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355 for k, v in env.items():
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356 self.assertIsInstance(k, str)
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357 self.assertIsInstance(v, str)
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358 self.assertEqual(env['FUNNY_ARG'], funky_str)
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359
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360
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361 if __name__ == '__main__':
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362 from psutil.tests.runner import run_from_name
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363 run_from_name(__file__)