base.py 文件源码

def setUp(self):
        """Run before each test method to initialize test environment."""
        super(TestCase, self).setUp()
        # Change the default directory that the tempfile
        # module places temporary files and directories in
        self.useFixture(fixtures.NestedTempfile())
        # Create a temporary directory and set it as $HOME in the environment.
        self.useFixture(fixtures.TempHomeDir())
        self.useFixture(tools.StandardLogging())
        self.addCleanup(self._clear_attrs)