utils.py 文件源码

def setUp(self):
        super(BaseTestCase, self).setUp()
        self.useFixture(fixtures.FakeLogger())

        # If enabled, stdout and/or stderr is captured and will appear in
        # test results if that test fails.
        if strutils.bool_from_string(os.environ.get('OS_STDOUT_CAPTURE')):
            stdout = self.useFixture(fixtures.StringStream('stdout')).stream
            self.useFixture(fixtures.MonkeyPatch('sys.stdout', stdout))
        if strutils.bool_from_string(os.environ.get('OS_STDERR_CAPTURE')):
            stderr = self.useFixture(fixtures.StringStream('stderr')).stream
            self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))