fmt/gtest/test/gtest_list_tests_unittest.py

178 lines
5.3 KiB
Python
Executable File

#!/usr/bin/env python
#
# Copyright 2006, Google Inc.
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# * Redistributions of source code must retain the above copyright
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"""Unit test for Google Test's --gtest_list_tests flag.
A user can ask Google Test to list all tests by specifying the
--gtest_list_tests flag. This script tests such functionality
by invoking gtest_list_tests_unittest_ (a program written with
Google Test) the command line flags.
"""
__author__ = 'phanna@google.com (Patrick Hanna)'
import gtest_test_utils
# Constants.
# The command line flag for enabling/disabling listing all tests.
LIST_TESTS_FLAG = 'gtest_list_tests'
# Path to the gtest_list_tests_unittest_ program.
EXE_PATH = gtest_test_utils.GetTestExecutablePath('gtest_list_tests_unittest_')
# The expected output when running gtest_list_tests_unittest_ with
# --gtest_list_tests
EXPECTED_OUTPUT_NO_FILTER = """FooDeathTest.
Test1
Foo.
Bar1
Bar2
DISABLED_Bar3
Abc.
Xyz
Def
FooBar.
Baz
FooTest.
Test1
DISABLED_Test2
Test3
"""
# The expected output when running gtest_list_tests_unittest_ with
# --gtest_list_tests and --gtest_filter=Foo*.
EXPECTED_OUTPUT_FILTER_FOO = """FooDeathTest.
Test1
Foo.
Bar1
Bar2
DISABLED_Bar3
FooBar.
Baz
FooTest.
Test1
DISABLED_Test2
Test3
"""
# Utilities.
def Run(args):
"""Runs gtest_list_tests_unittest_ and returns the list of tests printed."""
return gtest_test_utils.Subprocess([EXE_PATH] + args,
capture_stderr=False).output
# The unit test.
class GTestListTestsUnitTest(gtest_test_utils.TestCase):
"""Tests using the --gtest_list_tests flag to list all tests."""
def RunAndVerify(self, flag_value, expected_output, other_flag):
"""Runs gtest_list_tests_unittest_ and verifies that it prints
the correct tests.
Args:
flag_value: value of the --gtest_list_tests flag;
None if the flag should not be present.
expected_output: the expected output after running command;
other_flag: a different flag to be passed to command
along with gtest_list_tests;
None if the flag should not be present.
"""
if flag_value is None:
flag = ''
flag_expression = 'not set'
elif flag_value == '0':
flag = '--%s=0' % LIST_TESTS_FLAG
flag_expression = '0'
else:
flag = '--%s' % LIST_TESTS_FLAG
flag_expression = '1'
args = [flag]
if other_flag is not None:
args += [other_flag]
output = Run(args)
msg = ('when %s is %s, the output of "%s" is "%s".' %
(LIST_TESTS_FLAG, flag_expression, ' '.join(args), output))
if expected_output is not None:
self.assert_(output == expected_output, msg)
else:
self.assert_(output != EXPECTED_OUTPUT_NO_FILTER, msg)
def testDefaultBehavior(self):
"""Tests the behavior of the default mode."""
self.RunAndVerify(flag_value=None,
expected_output=None,
other_flag=None)
def testFlag(self):
"""Tests using the --gtest_list_tests flag."""
self.RunAndVerify(flag_value='0',
expected_output=None,
other_flag=None)
self.RunAndVerify(flag_value='1',
expected_output=EXPECTED_OUTPUT_NO_FILTER,
other_flag=None)
def testOverrideNonFilterFlags(self):
"""Tests that --gtest_list_tests overrides the non-filter flags."""
self.RunAndVerify(flag_value='1',
expected_output=EXPECTED_OUTPUT_NO_FILTER,
other_flag='--gtest_break_on_failure')
def testWithFilterFlags(self):
"""Tests that --gtest_list_tests takes into account the
--gtest_filter flag."""
self.RunAndVerify(flag_value='1',
expected_output=EXPECTED_OUTPUT_FILTER_FOO,
other_flag='--gtest_filter=Foo*')
if __name__ == '__main__':
gtest_test_utils.Main()