3 # Copyright 2008, Google Inc.
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions are
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
16 # * Neither the name of Google Inc. nor the names of its
17 # contributors may be used to endorse or promote products derived from
18 # this software without specific prior written permission.
20 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 r"""Tests the text output of Google C++ Mocking Framework.
34 To update the golden file:
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
42 from io import open # pylint: disable=redefined-builtin, g-importing-member
46 from googlemock.test import gmock_test_utils
49 # The flag for generating the golden file
50 GENGOLDEN_FLAG = '--gengolden'
52 PROGRAM_PATH = gmock_test_utils.GetTestExecutablePath('gmock_output_test_')
53 COMMAND = [PROGRAM_PATH, '--gtest_stack_trace_depth=0', '--gtest_print_time=0']
54 GOLDEN_NAME = 'gmock_output_test_golden.txt'
55 GOLDEN_PATH = os.path.join(gmock_test_utils.GetSourceDir(), GOLDEN_NAME)
58 def ToUnixLineEnding(s):
59 """Changes all Windows/Mac line endings in s to UNIX line endings."""
61 return s.replace('\r\n', '\n').replace('\r', '\n')
64 def RemoveReportHeaderAndFooter(output):
65 """Removes Google Test result report's header and footer from the output."""
67 output = re.sub(r'.*gtest_main.*\n', '', output)
68 output = re.sub(r'\[.*\d+ tests.*\n', '', output)
69 output = re.sub(r'\[.* test environment .*\n', '', output)
70 output = re.sub(r'\[=+\] \d+ tests .* ran.*', '', output)
71 output = re.sub(r'.* FAILED TESTS\n', '', output)
75 def RemoveLocations(output):
76 """Removes all file location info from a Google Test program's output.
79 output: the output of a Google Test program.
82 output with all file location info (in the form of
83 'DIRECTORY/FILE_NAME:LINE_NUMBER: 'or
84 'DIRECTORY\\FILE_NAME(LINE_NUMBER): ') replaced by
88 return re.sub(r'.*[/\\](.+)(\:\d+|\(\d+\))\:', 'FILE:#:', output)
91 def NormalizeErrorMarker(output):
92 """Normalizes the error marker, which is different on Windows vs on Linux."""
94 return re.sub(r' error: ', ' Failure\n', output)
97 def RemoveMemoryAddresses(output):
98 """Removes memory addresses from the test output."""
100 return re.sub(r'@\w+', '@0x#', output)
103 def RemoveTestNamesOfLeakedMocks(output):
104 """Removes the test names of leaked mock objects from the test output."""
106 return re.sub(r'\(used in test .+\) ', '', output)
109 def GetLeakyTests(output):
110 """Returns a list of test names that leak mock objects."""
112 # findall() returns a list of all matches of the regex in output.
113 # For example, if '(used in test FooTest.Bar)' is in output, the
114 # list will contain 'FooTest.Bar'.
115 return re.findall(r'\(used in test (.+)\)', output)
118 def GetNormalizedOutputAndLeakyTests(output):
119 """Normalizes the output of gmock_output_test_.
122 output: The test output.
125 A tuple (the normalized test output, the list of test names that have
129 output = ToUnixLineEnding(output)
130 output = RemoveReportHeaderAndFooter(output)
131 output = NormalizeErrorMarker(output)
132 output = RemoveLocations(output)
133 output = RemoveMemoryAddresses(output)
134 return (RemoveTestNamesOfLeakedMocks(output), GetLeakyTests(output))
137 def GetShellCommandOutput(cmd):
138 """Runs a command in a sub-process, and returns its STDOUT in a string."""
140 return gmock_test_utils.Subprocess(cmd, capture_stderr=False).output
143 def GetNormalizedCommandOutputAndLeakyTests(cmd):
144 """Runs a command and returns its normalized output and a list of leaky tests.
147 cmd: the shell command.
150 # Disables exception pop-ups on Windows.
151 os.environ['GTEST_CATCH_EXCEPTIONS'] = '1'
152 return GetNormalizedOutputAndLeakyTests(GetShellCommandOutput(cmd))
155 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().decode('utf-8')
163 # The normalized output should match the golden file.
164 self.assertEqual(golden, output)
166 # The raw output should contain 2 leaked mock object errors for
167 # test GMockOutputTest.CatchesLeakedMocks.
168 self.assertEqual(['GMockOutputTest.CatchesLeakedMocks',
169 'GMockOutputTest.CatchesLeakedMocks'],
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)
179 # Suppress the error "googletest was imported but a call to its main()
180 # was never detected."
183 gmock_test_utils.Main()