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annotate planemo/lib/python3.7/site-packages/psutil/tests/test_memleaks.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
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3 # Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
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4 # Use of this source code is governed by a BSD-style license that can be
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5 # found in the LICENSE file.
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6
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7 """
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8 Tests for detecting function memory leaks (typically the ones
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9 implemented in C). It does so by calling a function many times and
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10 checking whether process memory usage keeps increasing between
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11 calls or over time.
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12 Note that this may produce false positives (especially on Windows
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13 for some reason).
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14 PyPy appears to be completely unstable for this framework, probably
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15 because of how its JIT handles memory, so tests are skipped.
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16 """
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17
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18 from __future__ import print_function
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19 import functools
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20 import os
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21
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22 import psutil
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23 import psutil._common
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24 from psutil import LINUX
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25 from psutil import MACOS
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26 from psutil import OPENBSD
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27 from psutil import POSIX
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28 from psutil import SUNOS
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29 from psutil import WINDOWS
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30 from psutil._compat import ProcessLookupError
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31 from psutil._compat import super
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32 from psutil.tests import create_sockets
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33 from psutil.tests import get_testfn
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34 from psutil.tests import HAS_CPU_AFFINITY
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35 from psutil.tests import HAS_CPU_FREQ
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36 from psutil.tests import HAS_ENVIRON
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37 from psutil.tests import HAS_IONICE
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38 from psutil.tests import HAS_MEMORY_MAPS
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39 from psutil.tests import HAS_NET_IO_COUNTERS
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40 from psutil.tests import HAS_PROC_CPU_NUM
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41 from psutil.tests import HAS_PROC_IO_COUNTERS
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42 from psutil.tests import HAS_RLIMIT
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43 from psutil.tests import HAS_SENSORS_BATTERY
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44 from psutil.tests import HAS_SENSORS_FANS
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45 from psutil.tests import HAS_SENSORS_TEMPERATURES
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46 from psutil.tests import process_namespace
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47 from psutil.tests import skip_on_access_denied
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48 from psutil.tests import spawn_testproc
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49 from psutil.tests import system_namespace
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50 from psutil.tests import terminate
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51 from psutil.tests import TestMemoryLeak
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52 from psutil.tests import TRAVIS
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53 from psutil.tests import unittest
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54
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55
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56 cext = psutil._psplatform.cext
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57 thisproc = psutil.Process()
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58 FEW_TIMES = 5
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59
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60
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61 def fewtimes_if_linux():
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62 """Decorator for those Linux functions which are implemented in pure
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63 Python, and which we want to run faster.
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64 """
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65 def decorator(fun):
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66 @functools.wraps(fun)
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67 def wrapper(self, *args, **kwargs):
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68 if LINUX:
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69 before = self.__class__.times
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70 try:
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71 self.__class__.times = FEW_TIMES
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72 return fun(self, *args, **kwargs)
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73 finally:
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74 self.__class__.times = before
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75 else:
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76 return fun(self, *args, **kwargs)
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77 return wrapper
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78 return decorator
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79
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80
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81 # ===================================================================
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82 # Process class
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83 # ===================================================================
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84
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85
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86 class TestProcessObjectLeaks(TestMemoryLeak):
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87 """Test leaks of Process class methods."""
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88
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89 proc = thisproc
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90
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91 def test_coverage(self):
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92 ns = process_namespace(None)
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93 ns.test_class_coverage(self, ns.getters + ns.setters)
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94
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95 @fewtimes_if_linux()
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96 def test_name(self):
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97 self.execute(self.proc.name)
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98
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99 @fewtimes_if_linux()
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100 def test_cmdline(self):
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101 self.execute(self.proc.cmdline)
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102
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103 @fewtimes_if_linux()
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104 def test_exe(self):
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105 self.execute(self.proc.exe)
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106
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107 @fewtimes_if_linux()
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108 def test_ppid(self):
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109 self.execute(self.proc.ppid)
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110
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111 @unittest.skipIf(not POSIX, "POSIX only")
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112 @fewtimes_if_linux()
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113 def test_uids(self):
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114 self.execute(self.proc.uids)
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115
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116 @unittest.skipIf(not POSIX, "POSIX only")
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117 @fewtimes_if_linux()
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118 def test_gids(self):
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119 self.execute(self.proc.gids)
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120
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121 @fewtimes_if_linux()
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122 def test_status(self):
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123 self.execute(self.proc.status)
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124
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125 def test_nice(self):
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126 self.execute(self.proc.nice)
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127
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128 def test_nice_set(self):
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129 niceness = thisproc.nice()
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130 self.execute(lambda: self.proc.nice(niceness))
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131
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132 @unittest.skipIf(not HAS_IONICE, "not supported")
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133 def test_ionice(self):
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134 self.execute(self.proc.ionice)
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135
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136 @unittest.skipIf(not HAS_IONICE, "not supported")
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137 def test_ionice_set(self):
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138 if WINDOWS:
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139 value = thisproc.ionice()
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140 self.execute(lambda: self.proc.ionice(value))
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141 else:
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142 self.execute(lambda: self.proc.ionice(psutil.IOPRIO_CLASS_NONE))
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143 fun = functools.partial(cext.proc_ioprio_set, os.getpid(), -1, 0)
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144 self.execute_w_exc(OSError, fun)
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145
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146 @unittest.skipIf(not HAS_PROC_IO_COUNTERS, "not supported")
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147 @fewtimes_if_linux()
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148 def test_io_counters(self):
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149 self.execute(self.proc.io_counters)
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150
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151 @unittest.skipIf(POSIX, "worthless on POSIX")
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152 def test_username(self):
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153 # always open 1 handle on Windows (only once)
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154 psutil.Process().username()
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155 self.execute(self.proc.username)
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156
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157 @fewtimes_if_linux()
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158 def test_create_time(self):
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159 self.execute(self.proc.create_time)
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160
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161 @fewtimes_if_linux()
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162 @skip_on_access_denied(only_if=OPENBSD)
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163 def test_num_threads(self):
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164 self.execute(self.proc.num_threads)
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165
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166 @unittest.skipIf(not WINDOWS, "WINDOWS only")
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167 def test_num_handles(self):
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168 self.execute(self.proc.num_handles)
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169
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170 @unittest.skipIf(not POSIX, "POSIX only")
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171 @fewtimes_if_linux()
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172 def test_num_fds(self):
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173 self.execute(self.proc.num_fds)
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174
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175 @fewtimes_if_linux()
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176 def test_num_ctx_switches(self):
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177 self.execute(self.proc.num_ctx_switches)
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178
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179 @fewtimes_if_linux()
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180 @skip_on_access_denied(only_if=OPENBSD)
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181 def test_threads(self):
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182 self.execute(self.proc.threads)
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183
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184 @fewtimes_if_linux()
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185 def test_cpu_times(self):
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186 self.execute(self.proc.cpu_times)
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187
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188 @fewtimes_if_linux()
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189 @unittest.skipIf(not HAS_PROC_CPU_NUM, "not supported")
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190 def test_cpu_num(self):
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191 self.execute(self.proc.cpu_num)
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192
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193 @fewtimes_if_linux()
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194 def test_memory_info(self):
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195 self.execute(self.proc.memory_info)
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196
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197 @fewtimes_if_linux()
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198 def test_memory_full_info(self):
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199 self.execute(self.proc.memory_full_info)
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200
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201 @unittest.skipIf(not POSIX, "POSIX only")
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202 @fewtimes_if_linux()
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203 def test_terminal(self):
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204 self.execute(self.proc.terminal)
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205
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206 def test_resume(self):
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207 times = FEW_TIMES if POSIX else self.times
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208 self.execute(self.proc.resume, times=times)
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209
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210 @fewtimes_if_linux()
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211 def test_cwd(self):
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212 self.execute(self.proc.cwd)
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213
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214 @unittest.skipIf(not HAS_CPU_AFFINITY, "not supported")
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215 def test_cpu_affinity(self):
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216 self.execute(self.proc.cpu_affinity)
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217
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218 @unittest.skipIf(not HAS_CPU_AFFINITY, "not supported")
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219 def test_cpu_affinity_set(self):
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220 affinity = thisproc.cpu_affinity()
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221 self.execute(lambda: self.proc.cpu_affinity(affinity))
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222 if not TRAVIS:
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223 self.execute_w_exc(
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224 ValueError, lambda: self.proc.cpu_affinity([-1]))
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225
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226 @fewtimes_if_linux()
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227 def test_open_files(self):
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228 with open(get_testfn(), 'w'):
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229 self.execute(self.proc.open_files)
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230
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231 @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported")
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232 @fewtimes_if_linux()
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233 def test_memory_maps(self):
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234 self.execute(self.proc.memory_maps)
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235
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236 @unittest.skipIf(not LINUX, "LINUX only")
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237 @unittest.skipIf(not HAS_RLIMIT, "not supported")
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238 def test_rlimit(self):
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239 self.execute(lambda: self.proc.rlimit(psutil.RLIMIT_NOFILE))
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240
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241 @unittest.skipIf(not LINUX, "LINUX only")
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242 @unittest.skipIf(not HAS_RLIMIT, "not supported")
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243 def test_rlimit_set(self):
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244 limit = thisproc.rlimit(psutil.RLIMIT_NOFILE)
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245 self.execute(lambda: self.proc.rlimit(psutil.RLIMIT_NOFILE, limit))
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246 self.execute_w_exc(OSError, lambda: self.proc.rlimit(-1))
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247
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248 @fewtimes_if_linux()
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249 # Windows implementation is based on a single system-wide
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250 # function (tested later).
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251 @unittest.skipIf(WINDOWS, "worthless on WINDOWS")
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252 def test_connections(self):
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253 # TODO: UNIX sockets are temporarily implemented by parsing
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254 # 'pfiles' cmd output; we don't want that part of the code to
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255 # be executed.
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256 with create_sockets():
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257 kind = 'inet' if SUNOS else 'all'
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258 self.execute(lambda: self.proc.connections(kind))
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259
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260 @unittest.skipIf(not HAS_ENVIRON, "not supported")
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261 def test_environ(self):
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262 self.execute(self.proc.environ)
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263
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264 @unittest.skipIf(not WINDOWS, "WINDOWS only")
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265 def test_proc_info(self):
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266 self.execute(lambda: cext.proc_info(os.getpid()))
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267
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268
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269 class TestTerminatedProcessLeaks(TestProcessObjectLeaks):
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270 """Repeat the tests above looking for leaks occurring when dealing
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271 with terminated processes raising NoSuchProcess exception.
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272 The C functions are still invoked but will follow different code
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273 paths. We'll check those code paths.
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274 """
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275
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276 @classmethod
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277 def setUpClass(cls):
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278 super().setUpClass()
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279 cls.subp = spawn_testproc()
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280 cls.proc = psutil.Process(cls.subp.pid)
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281 cls.proc.kill()
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282 cls.proc.wait()
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283
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284 @classmethod
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285 def tearDownClass(cls):
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286 super().tearDownClass()
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287 terminate(cls.subp)
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288
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289 def call(self, fun):
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290 try:
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291 fun()
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292 except psutil.NoSuchProcess:
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293 pass
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294
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295 if WINDOWS:
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296
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297 def test_kill(self):
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298 self.execute(self.proc.kill)
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299
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300 def test_terminate(self):
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301 self.execute(self.proc.terminate)
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302
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303 def test_suspend(self):
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304 self.execute(self.proc.suspend)
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305
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306 def test_resume(self):
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307 self.execute(self.proc.resume)
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308
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309 def test_wait(self):
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310 self.execute(self.proc.wait)
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311
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312 def test_proc_info(self):
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313 # test dual implementation
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314 def call():
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315 try:
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316 return cext.proc_info(self.proc.pid)
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317 except ProcessLookupError:
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318 pass
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319
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320 self.execute(call)
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321
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322
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323 @unittest.skipIf(not WINDOWS, "WINDOWS only")
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324 class TestProcessDualImplementation(TestMemoryLeak):
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325
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326 def test_cmdline_peb_true(self):
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327 self.execute(lambda: cext.proc_cmdline(os.getpid(), use_peb=True))
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328
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329 def test_cmdline_peb_false(self):
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330 self.execute(lambda: cext.proc_cmdline(os.getpid(), use_peb=False))
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331
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332
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333 # ===================================================================
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334 # system APIs
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335 # ===================================================================
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336
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337
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338 class TestModuleFunctionsLeaks(TestMemoryLeak):
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339 """Test leaks of psutil module functions."""
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340
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341 def test_coverage(self):
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342 ns = system_namespace()
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343 ns.test_class_coverage(self, ns.all)
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344
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345 # --- cpu
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346
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347 @fewtimes_if_linux()
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348 def test_cpu_count(self): # logical
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349 self.execute(lambda: psutil.cpu_count(logical=True))
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350
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351 @fewtimes_if_linux()
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352 def test_cpu_count_physical(self):
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353 self.execute(lambda: psutil.cpu_count(logical=False))
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354
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355 @fewtimes_if_linux()
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356 def test_cpu_times(self):
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357 self.execute(psutil.cpu_times)
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358
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359 @fewtimes_if_linux()
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360 def test_per_cpu_times(self):
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361 self.execute(lambda: psutil.cpu_times(percpu=True))
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362
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363 @fewtimes_if_linux()
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364 def test_cpu_stats(self):
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365 self.execute(psutil.cpu_stats)
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366
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367 @fewtimes_if_linux()
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368 @unittest.skipIf(not HAS_CPU_FREQ, "not supported")
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369 def test_cpu_freq(self):
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370 self.execute(psutil.cpu_freq)
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371
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372 @unittest.skipIf(not WINDOWS, "WINDOWS only")
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373 def test_getloadavg(self):
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374 psutil.getloadavg()
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375 self.execute(psutil.getloadavg)
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376
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377 # --- mem
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378
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379 def test_virtual_memory(self):
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380 self.execute(psutil.virtual_memory)
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381
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382 # TODO: remove this skip when this gets fixed
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383 @unittest.skipIf(SUNOS, "worthless on SUNOS (uses a subprocess)")
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384 def test_swap_memory(self):
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385 self.execute(psutil.swap_memory)
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386
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387 def test_pid_exists(self):
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388 times = FEW_TIMES if POSIX else self.times
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389 self.execute(lambda: psutil.pid_exists(os.getpid()), times=times)
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390
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391 # --- disk
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392
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393 def test_disk_usage(self):
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394 times = FEW_TIMES if POSIX else self.times
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395 self.execute(lambda: psutil.disk_usage('.'), times=times)
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396
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397 def test_disk_partitions(self):
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398 self.execute(psutil.disk_partitions)
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399
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400 @unittest.skipIf(LINUX and not os.path.exists('/proc/diskstats'),
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401 '/proc/diskstats not available on this Linux version')
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402 @fewtimes_if_linux()
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403 def test_disk_io_counters(self):
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404 self.execute(lambda: psutil.disk_io_counters(nowrap=False))
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405
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406 # --- proc
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407
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408 @fewtimes_if_linux()
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409 def test_pids(self):
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410 self.execute(psutil.pids)
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411
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412 # --- net
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413
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414 @fewtimes_if_linux()
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415 @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported')
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416 def test_net_io_counters(self):
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417 self.execute(lambda: psutil.net_io_counters(nowrap=False))
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418
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419 @fewtimes_if_linux()
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420 @unittest.skipIf(MACOS and os.getuid() != 0, "need root access")
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421 def test_net_connections(self):
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422 # always opens and handle on Windows() (once)
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423 psutil.net_connections(kind='all')
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424 with create_sockets():
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425 self.execute(lambda: psutil.net_connections(kind='all'))
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426
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427 def test_net_if_addrs(self):
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428 # Note: verified that on Windows this was a false positive.
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429 tolerance = 80 * 1024 if WINDOWS else self.tolerance
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430 self.execute(psutil.net_if_addrs, tolerance=tolerance)
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431
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432 # @unittest.skipIf(TRAVIS, "EPERM on travis")
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433 def test_net_if_stats(self):
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434 self.execute(psutil.net_if_stats)
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435
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436 # --- sensors
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437
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438 @fewtimes_if_linux()
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439 @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported")
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440 def test_sensors_battery(self):
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441 self.execute(psutil.sensors_battery)
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442
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443 @fewtimes_if_linux()
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444 @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported")
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445 def test_sensors_temperatures(self):
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446 self.execute(psutil.sensors_temperatures)
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447
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448 @fewtimes_if_linux()
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449 @unittest.skipIf(not HAS_SENSORS_FANS, "not supported")
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450 def test_sensors_fans(self):
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451 self.execute(psutil.sensors_fans)
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452
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453 # --- others
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454
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455 @fewtimes_if_linux()
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456 def test_boot_time(self):
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457 self.execute(psutil.boot_time)
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458
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459 def test_users(self):
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460 self.execute(psutil.users)
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461
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462 if WINDOWS:
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463
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464 # --- win services
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465
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466 def test_win_service_iter(self):
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467 self.execute(cext.winservice_enumerate)
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468
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469 def test_win_service_get(self):
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470 pass
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471
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472 def test_win_service_get_config(self):
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473 name = next(psutil.win_service_iter()).name()
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474 self.execute(lambda: cext.winservice_query_config(name))
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475
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476 def test_win_service_get_status(self):
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477 name = next(psutil.win_service_iter()).name()
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478 self.execute(lambda: cext.winservice_query_status(name))
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479
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480 def test_win_service_get_description(self):
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481 name = next(psutil.win_service_iter()).name()
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482 self.execute(lambda: cext.winservice_query_descr(name))
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483
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484
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485 if __name__ == '__main__':
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486 from psutil.tests.runner import run_from_name
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487 run_from_name(__file__)