base.py 文件源码

def setUp(self):
        """Run before each test method to initialize test environment."""

        super(TestCase, self).setUp()

        # Timeout
        test_timeout = int(os.environ.get('OS_TEST_TIMEOUT', 0))
        try:
            test_timeout = int(test_timeout * self.TIMEOUT_SCALING_FACTOR)
        except ValueError:
            # If timeout value is invalid do not set a timeout.
            test_timeout = 0
        if test_timeout > 0:
            # gentle timeout = raise TimeoutException
            self.useFixture(fixtures.Timeout(test_timeout, gentle=True))

        # Nest all temporary files and directories inside another directory
        self.useFixture(fixtures.NestedTempfile())

        # Create a temporary directory and set it as $HOME
        self.useFixture(fixtures.TempHomeDir())

        # Capture STDOUT
        if os.environ.get('OS_STDOUT_CAPTURE') in _TRUE_VALUES:
            stdout = self.useFixture(fixtures.StringStream('stdout')).stream
            self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))

        # Capture STDERR
        if os.environ.get('OS_STDERR_CAPTURE') in _TRUE_VALUES:
            stderr = self.useFixture(fixtures.StringStream('stderr')).stream
            self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))