Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_support.py @ 79691:05c8928362ee

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Merge __next__ method link fixes with 3.3.
author Ezio Melotti <ezio.melotti@gmail.com>
date Fri, 12 Oct 2012 13:46:37 +0300
parents b1d6daface10
children af2416c2e27c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python
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2
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3 import importlib
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4 import sys
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5 import os
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6 import unittest
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7 import socket
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8 import tempfile
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9 import errno
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10 from test import support
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11
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12 TESTFN = support.TESTFN
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13 TESTDIRN = os.path.basename(tempfile.mkdtemp(dir='.'))
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14
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15
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16 class TestSupport(unittest.TestCase):
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17 def setUp(self):
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18 support.unlink(TESTFN)
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19 support.rmtree(TESTDIRN)
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20 tearDown = setUp
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21
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22 def test_import_module(self):
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23 support.import_module("ftplib")
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24 self.assertRaises(unittest.SkipTest, support.import_module, "foo")
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25
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26 def test_import_fresh_module(self):
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27 support.import_fresh_module("ftplib")
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28
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29 def test_get_attribute(self):
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30 self.assertEqual(support.get_attribute(self, "test_get_attribute"),
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31 self.test_get_attribute)
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32 self.assertRaises(unittest.SkipTest, support.get_attribute, self, "foo")
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33
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34 @unittest.skip("failing buildbots")
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35 def test_get_original_stdout(self):
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36 self.assertEqual(support.get_original_stdout(), sys.stdout)
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37
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38 def test_unload(self):
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39 import sched
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40 self.assertIn("sched", sys.modules)
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41 support.unload("sched")
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42 self.assertNotIn("sched", sys.modules)
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43
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44 def test_unlink(self):
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45 with open(TESTFN, "w") as f:
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46 pass
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47 support.unlink(TESTFN)
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48 self.assertFalse(os.path.exists(TESTFN))
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49 support.unlink(TESTFN)
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50
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51 def test_rmtree(self):
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52 os.mkdir(TESTDIRN)
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53 os.mkdir(os.path.join(TESTDIRN, TESTDIRN))
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54 support.rmtree(TESTDIRN)
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55 self.assertFalse(os.path.exists(TESTDIRN))
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56 support.rmtree(TESTDIRN)
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57
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58 def test_forget(self):
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59 mod_filename = TESTFN + '.py'
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60 with open(mod_filename, 'w') as f:
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61 print('foo = 1', file=f)
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62 sys.path.insert(0, os.curdir)
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63 importlib.invalidate_caches()
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64 try:
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65 mod = __import__(TESTFN)
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66 self.assertIn(TESTFN, sys.modules)
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67
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68 support.forget(TESTFN)
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69 self.assertNotIn(TESTFN, sys.modules)
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70 finally:
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71 del sys.path[0]
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72 support.unlink(mod_filename)
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73
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74 def test_HOST(self):
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75 s = socket.socket()
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76 s.bind((support.HOST, 0))
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77 s.close()
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78
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79 def test_find_unused_port(self):
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80 port = support.find_unused_port()
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81 s = socket.socket()
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82 s.bind((support.HOST, port))
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83 s.close()
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84
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85 def test_bind_port(self):
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86 s = socket.socket()
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87 support.bind_port(s)
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88 s.listen(1)
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89 s.close()
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90
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91 def test_temp_cwd(self):
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92 here = os.getcwd()
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93 with support.temp_cwd(name=TESTFN):
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94 self.assertEqual(os.path.basename(os.getcwd()), TESTFN)
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95 self.assertFalse(os.path.exists(TESTFN))
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96 self.assertTrue(os.path.basename(os.getcwd()), here)
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97
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98 def test_temp_cwd__chdir_warning(self):
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99 """Check the warning message when os.chdir() fails."""
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100 path = TESTFN + '_does_not_exist'
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101 with support.check_warnings() as recorder:
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102 with support.temp_cwd(path=path, quiet=True):
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103 pass
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104 messages = [str(w.message) for w in recorder.warnings]
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105 self.assertEqual(messages, ['tests may fail, unable to change the CWD to ' + path])
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106
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107 def test_sortdict(self):
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108 self.assertEqual(support.sortdict({3:3, 2:2, 1:1}), "{1: 1, 2: 2, 3: 3}")
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109
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110 def test_make_bad_fd(self):
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111 fd = support.make_bad_fd()
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112 with self.assertRaises(OSError) as cm:
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113 os.write(fd, b"foo")
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114 self.assertEqual(cm.exception.errno, errno.EBADF)
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115
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116 def test_check_syntax_error(self):
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117 support.check_syntax_error(self, "def class")
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118 self.assertRaises(AssertionError, support.check_syntax_error, self, "1")
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119
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120 def test_CleanImport(self):
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121 import importlib
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122 with support.CleanImport("asyncore"):
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123 importlib.import_module("asyncore")
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124
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125 def test_DirsOnSysPath(self):
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126 with support.DirsOnSysPath('foo', 'bar'):
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127 self.assertIn("foo", sys.path)
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128 self.assertIn("bar", sys.path)
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129 self.assertNotIn("foo", sys.path)
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130 self.assertNotIn("bar", sys.path)
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131
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132 def test_captured_stdout(self):
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133 with support.captured_stdout() as s:
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134 print("hello")
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135 self.assertEqual(s.getvalue(), "hello\n")
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136
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137 def test_captured_stderr(self):
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138 with support.captured_stderr() as s:
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139 print("hello", file=sys.stderr)
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140 self.assertEqual(s.getvalue(), "hello\n")
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141
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142 def test_captured_stdin(self):
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143 with support.captured_stdin() as s:
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144 print("hello", file=sys.stdin)
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145 self.assertEqual(s.getvalue(), "hello\n")
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146
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147 def test_gc_collect(self):
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148 support.gc_collect()
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149
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150 def test_python_is_optimized(self):
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151 self.assertIsInstance(support.python_is_optimized(), bool)
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152
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153 def test_swap_attr(self):
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154 class Obj:
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155 x = 1
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156 obj = Obj()
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157 with support.swap_attr(obj, "x", 5):
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158 self.assertEqual(obj.x, 5)
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159 self.assertEqual(obj.x, 1)
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160
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161 def test_swap_item(self):
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162 D = {"item":1}
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163 with support.swap_item(D, "item", 5):
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164 self.assertEqual(D["item"], 5)
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165 self.assertEqual(D["item"], 1)
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166
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167 # XXX -follows a list of untested API
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168 # make_legacy_pyc
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169 # is_resource_enabled
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170 # requires
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171 # fcmp
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172 # umaks
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173 # findfile
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174 # check_warnings
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175 # EnvironmentVarGuard
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176 # TransientResource
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177 # transient_internet
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178 # run_with_locale
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179 # set_memlimit
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180 # bigmemtest
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181 # precisionbigmemtest
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182 # bigaddrspacetest
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183 # requires_resource
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184 # run_doctest
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185 # threading_cleanup
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186 # reap_threads
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187 # reap_children
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188 # strip_python_stderr
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189 # args_from_interpreter_flags
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190 # can_symlink
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191 # skip_unless_symlink
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192
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193
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194 def test_main():
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195 tests = [TestSupport]
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196 support.run_unittest(*tests)
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197
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198 if __name__ == '__main__':
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199 test_main()