test_utils.py 文件源码

def test_arbitrary_outputs_are_not_replaced_even_if_stdout_is_broken(self, sys):
        output = io.StringIO()

        def sample(**kwargs):
            assert kwargs['stdin'] is None
            assert kwargs['stdout'] is output
        sys.stdout.fileno.side_effect = io.UnsupportedOperation
        utils.wrap_subprocess_call(sample)(stdin=None, stdout=output)