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"""Unit test for Google Test's global test environment behavior.
A user can specify a global test environment via
testing::AddGlobalTestEnvironment. Failures in the global environment should
result in all unit tests being skipped.
This script tests such functionality by invoking
googletest-global-environment-unittest_ (a program written with Google Test).
"""
import re
from googletest.test import gtest_test_utils
def RunAndReturnOutput(args=None):
"""Runs the test program and returns its output."""
return gtest_test_utils.Subprocess([
gtest_test_utils.GetTestExecutablePath(
'googletest-global-environment-unittest_')
] + (args or [])).output
class GTestGlobalEnvironmentUnitTest(gtest_test_utils.TestCase):
"""Tests global test environment failures."""
def testEnvironmentSetUpFails(self):
"""Tests the behavior of not specifying the fail_fast."""
# Run the test.
txt = RunAndReturnOutput()
# We should see the text of the global environment setup error.
self.assertIn('Canned environment setup error', txt)
# Our test should have been skipped due to the error, and not treated as a
# pass.
self.assertIn('[ SKIPPED ] 1 test', txt)
self.assertIn('[ PASSED ] 0 tests', txt)
# The test case shouldn't have been run.
self.assertNotIn('Unexpected call', txt)
def testEnvironmentSetUpAndTornDownForEachRepeat(self):
"""Tests the behavior of test environments and gtest_repeat."""
txt = RunAndReturnOutput(['--gtest_repeat=2'])
# By default, with gtest_repeat=2, the global test environment should be set
# up and torn down for each iteration.
expected_pattern = ('(.|\n)*'
r'Repeating all tests \(iteration 1\)'
'(.|\n)*'
'Global test environment set-up.'
'(.|\n)*'
'SomeTest.DoesFoo'
'(.|\n)*'
'Global test environment tear-down'
'(.|\n)*'
r'Repeating all tests \(iteration 2\)'
'(.|\n)*'
'Global test environment set-up.'
'(.|\n)*'
'SomeTest.DoesFoo'
'(.|\n)*'
'Global test environment tear-down'
'(.|\n)*')
self.assertRegex(txt, expected_pattern)
def testEnvironmentSetUpAndTornDownOnce(self):
"""Tests environment and --gtest_recreate_environments_when_repeating."""
# When --gtest_recreate_environments_when_repeating is false, the test
# environment should only be set up and torn down once, at the start and
# end of the test respectively.
expected_pattern = ('(.|\n)*'
r'Repeating all tests \(iteration 1\)'
'(.|\n)*'
'Global test environment set-up.'
'(.|\n)*'
'SomeTest.DoesFoo'
'(.|\n)*'
r'Repeating all tests \(iteration 2\)'
'(.|\n)*'
'SomeTest.DoesFoo'
'(.|\n)*'
'Global test environment tear-down'
'(.|\n)*')
self.assertRegex(txt, expected_pattern)
self.assertEqual(len(re.findall('Global test environment set-up', txt)), 1)
self.assertEqual(
len(re.findall('Global test environment tear-down', txt)), 1)
if __name__ == '__main__':
gtest_test_utils.Main()
