184 lines
6.0 KiB
Python
184 lines
6.0 KiB
Python
#!/usr/bin/env python
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#
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# Copyright 2008, Google Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# distribution.
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# * Neither the name of Google Inc. nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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"""Tests the text output of Google C++ Mocking Framework.
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To update the golden file:
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gmock_output_test.py --build_dir=BUILD/DIR --gengolden
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# where BUILD/DIR contains the built gmock_output_test_ file.
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gmock_output_test.py --gengolden
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gmock_output_test.py
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"""
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__author__ = 'wan@google.com (Zhanyong Wan)'
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import os
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import re
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import sys
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import gmock_test_utils
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# The flag for generating the golden file
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GENGOLDEN_FLAG = '--gengolden'
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PROGRAM_PATH = gmock_test_utils.GetTestExecutablePath('gmock_output_test_')
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COMMAND = [PROGRAM_PATH, '--gtest_stack_trace_depth=0', '--gtest_print_time=0']
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GOLDEN_NAME = 'gmock_output_test_golden.txt'
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GOLDEN_PATH = os.path.join(gmock_test_utils.GetSourceDir(), GOLDEN_NAME)
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def ToUnixLineEnding(s):
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"""Changes all Windows/Mac line endings in s to UNIX line endings."""
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return s.replace('\r\n', '\n').replace('\r', '\n')
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def RemoveReportHeaderAndFooter(output):
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"""Removes Google Test result report's header and footer from the output."""
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output = re.sub(r'.*gtest_main.*\n', '', output)
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output = re.sub(r'\[.*\d+ tests.*\n', '', output)
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output = re.sub(r'\[.* test environment .*\n', '', output)
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output = re.sub(r'\[=+\] \d+ tests .* ran.*', '', output)
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output = re.sub(r'.* FAILED TESTS\n', '', output)
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return output
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def RemoveLocations(output):
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"""Removes all file location info from a Google Test program's output.
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Args:
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output: the output of a Google Test program.
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Returns:
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output with all file location info (in the form of
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'DIRECTORY/FILE_NAME:LINE_NUMBER: 'or
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'DIRECTORY\\FILE_NAME(LINE_NUMBER): ') replaced by
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'FILE:#: '.
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"""
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return re.sub(r'.*[/\\](.+)(\:\d+|\(\d+\))\:', 'FILE:#:', output)
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def NormalizeErrorMarker(output):
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"""Normalizes the error marker, which is different on Windows vs on Linux."""
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return re.sub(r' error: ', ' Failure\n', output)
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def RemoveMemoryAddresses(output):
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"""Removes memory addresses from the test output."""
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return re.sub(r'@\w+', '@0x#', output)
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def RemoveTestNamesOfLeakedMocks(output):
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"""Removes the test names of leaked mock objects from the test output."""
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return re.sub(r'\(used in test .+\) ', '', output)
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def GetLeakyTests(output):
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"""Returns a list of test names that leak mock objects."""
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# findall() returns a list of all matches of the regex in output.
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# For example, if '(used in test FooTest.Bar)' is in output, the
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# list will contain 'FooTest.Bar'.
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return re.findall(r'\(used in test (.+)\)', output)
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def GetNormalizedOutputAndLeakyTests(output):
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"""Normalizes the output of gmock_output_test_.
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Args:
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output: The test output.
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Returns:
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A tuple (the normalized test output, the list of test names that have
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leaked mocks).
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"""
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output = ToUnixLineEnding(output)
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output = RemoveReportHeaderAndFooter(output)
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output = NormalizeErrorMarker(output)
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output = RemoveLocations(output)
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output = RemoveMemoryAddresses(output)
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return (RemoveTestNamesOfLeakedMocks(output), GetLeakyTests(output))
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def GetShellCommandOutput(cmd):
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"""Runs a command in a sub-process, and returns its STDOUT in a string."""
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return gmock_test_utils.Subprocess(cmd, capture_stderr=False).output
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def GetNormalizedCommandOutputAndLeakyTests(cmd):
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"""Runs a command and returns its normalized output and a list of leaky tests.
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Args:
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cmd: the shell command.
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"""
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# Disables exception pop-ups on Windows.
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os.environ['GTEST_CATCH_EXCEPTIONS'] = '1'
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return GetNormalizedOutputAndLeakyTests(GetShellCommandOutput(cmd))
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class GMockOutputTest(gmock_test_utils.TestCase):
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def testOutput(self):
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(output, leaky_tests) = GetNormalizedCommandOutputAndLeakyTests(COMMAND)
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golden_file = open(GOLDEN_PATH, 'rb')
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golden = golden_file.read()
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golden_file.close()
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# The normalized output should match the golden file.
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self.assertEquals(golden, output)
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# The raw output should contain 2 leaked mock object errors for
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# test GMockOutputTest.CatchesLeakedMocks.
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self.assertEquals(['GMockOutputTest.CatchesLeakedMocks',
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'GMockOutputTest.CatchesLeakedMocks'],
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leaky_tests)
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if __name__ == '__main__':
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if sys.argv[1:] == [GENGOLDEN_FLAG]:
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(output, _) = GetNormalizedCommandOutputAndLeakyTests(COMMAND)
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golden_file = open(GOLDEN_PATH, 'wb')
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golden_file.write(output)
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golden_file.close()
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# Suppress the error "googletest was imported but a call to its main()
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# was never detected."
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os._exit(0)
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else:
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gmock_test_utils.Main()
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