ceph/src/rapidjson/thirdparty/gtest/googletest/test/gtest_list_tests_unittest.py

   1 #!/usr/bin/env python
   2 #
   3 # Copyright 2006, Google Inc.
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions are
   8 # met:
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  10 #     * Redistributions of source code must retain the above copyright
  11 # notice, this list of conditions and the following disclaimer.
  12 #     * Redistributions in binary form must reproduce the above
  13 # copyright notice, this list of conditions and the following disclaimer
  14 # in the documentation and/or other materials provided with the
  15 # distribution.
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  17 # contributors may be used to endorse or promote products derived from
  18 # this software without specific prior written permission.
  19 #
  20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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  30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31
  32 """Unit test for Google Test's --gtest_list_tests flag.
  33
  34 A user can ask Google Test to list all tests by specifying the
  35 --gtest_list_tests flag.  This script tests such functionality
  36 by invoking gtest_list_tests_unittest_ (a program written with
  37 Google Test) the command line flags.
  38 """
  39
  40 __author__ = 'phanna@google.com (Patrick Hanna)'
  41
  42 import gtest_test_utils
  43 import re
  44
  45
  46 # Constants.
  47
  48 # The command line flag for enabling/disabling listing all tests.
  49 LIST_TESTS_FLAG = 'gtest_list_tests'
  50
  51 # Path to the gtest_list_tests_unittest_ program.
  52 EXE_PATH = gtest_test_utils.GetTestExecutablePath('gtest_list_tests_unittest_')
  53
  54 # The expected output when running gtest_list_tests_unittest_ with
  55 # --gtest_list_tests
  56 EXPECTED_OUTPUT_NO_FILTER_RE = re.compile(r"""FooDeathTest\.
  57   Test1
  58 Foo\.
  59   Bar1
  60   Bar2
  61   DISABLED_Bar3
  62 Abc\.
  63   Xyz
  64   Def
  65 FooBar\.
  66   Baz
  67 FooTest\.
  68   Test1
  69   DISABLED_Test2
  70   Test3
  71 TypedTest/0\.  # TypeParam = (VeryLo{245}|class VeryLo{239})\.\.\.
  72   TestA
  73   TestB
  74 TypedTest/1\.  # TypeParam = int\s*\*
  75   TestA
  76   TestB
  77 TypedTest/2\.  # TypeParam = .*MyArray<bool,\s*42>
  78   TestA
  79   TestB
  80 My/TypeParamTest/0\.  # TypeParam = (VeryLo{245}|class VeryLo{239})\.\.\.
  81   TestA
  82   TestB
  83 My/TypeParamTest/1\.  # TypeParam = int\s*\*
  84   TestA
  85   TestB
  86 My/TypeParamTest/2\.  # TypeParam = .*MyArray<bool,\s*42>
  87   TestA
  88   TestB
  89 MyInstantiation/ValueParamTest\.
  90   TestA/0  # GetParam\(\) = one line
  91   TestA/1  # GetParam\(\) = two\\nlines
  92   TestA/2  # GetParam\(\) = a very\\nlo{241}\.\.\.
  93   TestB/0  # GetParam\(\) = one line
  94   TestB/1  # GetParam\(\) = two\\nlines
  95   TestB/2  # GetParam\(\) = a very\\nlo{241}\.\.\.
  96 """)
  97
  98 # The expected output when running gtest_list_tests_unittest_ with
  99 # --gtest_list_tests and --gtest_filter=Foo*.
 100 EXPECTED_OUTPUT_FILTER_FOO_RE = re.compile(r"""FooDeathTest\.
 101   Test1
 102 Foo\.
 103   Bar1
 104   Bar2
 105   DISABLED_Bar3
 106 FooBar\.
 107   Baz
 108 FooTest\.
 109   Test1
 110   DISABLED_Test2
 111   Test3
 112 """)
 113
 114 # Utilities.
 115
 116
 117 def Run(args):
 118   """Runs gtest_list_tests_unittest_ and returns the list of tests printed."""
 119
 120   return gtest_test_utils.Subprocess([EXE_PATH] + args,
 121                                      capture_stderr=False).output
 122
 123
 124 # The unit test.
 125
 126 class GTestListTestsUnitTest(gtest_test_utils.TestCase):
 127   """Tests using the --gtest_list_tests flag to list all tests."""
 128
 129   def RunAndVerify(self, flag_value, expected_output_re, other_flag):
 130     """Runs gtest_list_tests_unittest_ and verifies that it prints
 131     the correct tests.
 132
 133     Args:
 134       flag_value:         value of the --gtest_list_tests flag;
 135                           None if the flag should not be present.
 136       expected_output_re: regular expression that matches the expected
 137                           output after running command;
 138       other_flag:         a different flag to be passed to command
 139                           along with gtest_list_tests;
 140                           None if the flag should not be present.
 141     """
 142
 143     if flag_value is None:
 144       flag = ''
 145       flag_expression = 'not set'
 146     elif flag_value == '0':
 147       flag = '--%s=0' % LIST_TESTS_FLAG
 148       flag_expression = '0'
 149     else:
 150       flag = '--%s' % LIST_TESTS_FLAG
 151       flag_expression = '1'
 152
 153     args = [flag]
 154
 155     if other_flag is not None:
 156       args += [other_flag]
 157
 158     output = Run(args)
 159
 160     if expected_output_re:
 161       self.assert_(
 162           expected_output_re.match(output),
 163           ('when %s is %s, the output of "%s" is "%s",\n'
 164            'which does not match regex "%s"' %
 165            (LIST_TESTS_FLAG, flag_expression, ' '.join(args), output,
 166             expected_output_re.pattern)))
 167     else:
 168       self.assert_(
 169           not EXPECTED_OUTPUT_NO_FILTER_RE.match(output),
 170           ('when %s is %s, the output of "%s" is "%s"'%
 171            (LIST_TESTS_FLAG, flag_expression, ' '.join(args), output)))
 172
 173   def testDefaultBehavior(self):
 174     """Tests the behavior of the default mode."""
 175
 176     self.RunAndVerify(flag_value=None,
 177                       expected_output_re=None,
 178                       other_flag=None)
 179
 180   def testFlag(self):
 181     """Tests using the --gtest_list_tests flag."""
 182
 183     self.RunAndVerify(flag_value='0',
 184                       expected_output_re=None,
 185                       other_flag=None)
 186     self.RunAndVerify(flag_value='1',
 187                       expected_output_re=EXPECTED_OUTPUT_NO_FILTER_RE,
 188                       other_flag=None)
 189
 190   def testOverrideNonFilterFlags(self):
 191     """Tests that --gtest_list_tests overrides the non-filter flags."""
 192
 193     self.RunAndVerify(flag_value='1',
 194                       expected_output_re=EXPECTED_OUTPUT_NO_FILTER_RE,
 195                       other_flag='--gtest_break_on_failure')
 196
 197   def testWithFilterFlags(self):
 198     """Tests that --gtest_list_tests takes into account the
 199     --gtest_filter flag."""
 200
 201     self.RunAndVerify(flag_value='1',
 202                       expected_output_re=EXPECTED_OUTPUT_FILTER_FOO_RE,
 203                       other_flag='--gtest_filter=Foo*')
 204
 205
 206 if __name__ == '__main__':
 207   gtest_test_utils.Main()