ceph/src/rapidjson/thirdparty/gtest/googlemock/test/gmock_output_test.py

   1 #!/usr/bin/env python
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   3 # Copyright 2008, Google Inc.
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  31
  32 """Tests the text output of Google C++ Mocking Framework.
  33
  34 SYNOPSIS
  35        gmock_output_test.py --build_dir=BUILD/DIR --gengolden
  36          # where BUILD/DIR contains the built gmock_output_test_ file.
  37        gmock_output_test.py --gengolden
  38        gmock_output_test.py
  39 """
  40
  41 __author__ = 'wan@google.com (Zhanyong Wan)'
  42
  43 import os
  44 import re
  45 import sys
  46
  47 import gmock_test_utils
  48
  49
  50 # The flag for generating the golden file
  51 GENGOLDEN_FLAG = '--gengolden'
  52
  53 PROGRAM_PATH = gmock_test_utils.GetTestExecutablePath('gmock_output_test_')
  54 COMMAND = [PROGRAM_PATH, '--gtest_stack_trace_depth=0', '--gtest_print_time=0']
  55 GOLDEN_NAME = 'gmock_output_test_golden.txt'
  56 GOLDEN_PATH = os.path.join(gmock_test_utils.GetSourceDir(), GOLDEN_NAME)
  57
  58
  59 def ToUnixLineEnding(s):
  60   """Changes all Windows/Mac line endings in s to UNIX line endings."""
  61
  62   return s.replace('\r\n', '\n').replace('\r', '\n')
  63
  64
  65 def RemoveReportHeaderAndFooter(output):
  66   """Removes Google Test result report's header and footer from the output."""
  67
  68   output = re.sub(r'.*gtest_main.*\n', '', output)
  69   output = re.sub(r'\[.*\d+ tests.*\n', '', output)
  70   output = re.sub(r'\[.* test environment .*\n', '', output)
  71   output = re.sub(r'\[=+\] \d+ tests .* ran.*', '', output)
  72   output = re.sub(r'.* FAILED TESTS\n', '', output)
  73   return output
  74
  75
  76 def RemoveLocations(output):
  77   """Removes all file location info from a Google Test program's output.
  78
  79   Args:
  80        output:  the output of a Google Test program.
  81
  82   Returns:
  83        output with all file location info (in the form of
  84        'DIRECTORY/FILE_NAME:LINE_NUMBER: 'or
  85        'DIRECTORY\\FILE_NAME(LINE_NUMBER): ') replaced by
  86        'FILE:#: '.
  87   """
  88
  89   return re.sub(r'.*[/\\](.+)(\:\d+|\(\d+\))\:', 'FILE:#:', output)
  90
  91
  92 def NormalizeErrorMarker(output):
  93   """Normalizes the error marker, which is different on Windows vs on Linux."""
  94
  95   return re.sub(r' error: ', ' Failure\n', output)
  96
  97
  98 def RemoveMemoryAddresses(output):
  99   """Removes memory addresses from the test output."""
 100
 101   return re.sub(r'@\w+', '@0x#', output)
 102
 103
 104 def RemoveTestNamesOfLeakedMocks(output):
 105   """Removes the test names of leaked mock objects from the test output."""
 106
 107   return re.sub(r'\(used in test .+\) ', '', output)
 108
 109
 110 def GetLeakyTests(output):
 111   """Returns a list of test names that leak mock objects."""
 112
 113   # findall() returns a list of all matches of the regex in output.
 114   # For example, if '(used in test FooTest.Bar)' is in output, the
 115   # list will contain 'FooTest.Bar'.
 116   return re.findall(r'\(used in test (.+)\)', output)
 117
 118
 119 def GetNormalizedOutputAndLeakyTests(output):
 120   """Normalizes the output of gmock_output_test_.
 121
 122   Args:
 123     output: The test output.
 124
 125   Returns:
 126     A tuple (the normalized test output, the list of test names that have
 127     leaked mocks).
 128   """
 129
 130   output = ToUnixLineEnding(output)
 131   output = RemoveReportHeaderAndFooter(output)
 132   output = NormalizeErrorMarker(output)
 133   output = RemoveLocations(output)
 134   output = RemoveMemoryAddresses(output)
 135   return (RemoveTestNamesOfLeakedMocks(output), GetLeakyTests(output))
 136
 137
 138 def GetShellCommandOutput(cmd):
 139   """Runs a command in a sub-process, and returns its STDOUT in a string."""
 140
 141   return gmock_test_utils.Subprocess(cmd, capture_stderr=False).output
 142
 143
 144 def GetNormalizedCommandOutputAndLeakyTests(cmd):
 145   """Runs a command and returns its normalized output and a list of leaky tests.
 146
 147   Args:
 148     cmd:  the shell command.
 149   """
 150
 151   # Disables exception pop-ups on Windows.
 152   os.environ['GTEST_CATCH_EXCEPTIONS'] = '1'
 153   return GetNormalizedOutputAndLeakyTests(GetShellCommandOutput(cmd))
 154
 155
 156 class GMockOutputTest(gmock_test_utils.TestCase):
 157   def testOutput(self):
 158     (output, leaky_tests) = GetNormalizedCommandOutputAndLeakyTests(COMMAND)
 159     golden_file = open(GOLDEN_PATH, 'rb')
 160     golden = golden_file.read()
 161     golden_file.close()
 162
 163     # The normalized output should match the golden file.
 164     self.assertEquals(golden, output)
 165
 166     # The raw output should contain 2 leaked mock object errors for
 167     # test GMockOutputTest.CatchesLeakedMocks.
 168     self.assertEquals(['GMockOutputTest.CatchesLeakedMocks',
 169                        'GMockOutputTest.CatchesLeakedMocks'],
 170                       leaky_tests)
 171
 172
 173 if __name__ == '__main__':
 174   if sys.argv[1:] == [GENGOLDEN_FLAG]:
 175     (output, _) = GetNormalizedCommandOutputAndLeakyTests(COMMAND)
 176     golden_file = open(GOLDEN_PATH, 'wb')
 177     golden_file.write(output)
 178     golden_file.close()
 179   else:
 180     gmock_test_utils.Main()