def test_noArguments(self):
        sys = FakeSys(["eliotfilter"], b"")
        result = main(sys)
        self.assertEqual(sys.stderr.getvalue(), USAGE)
        self.assertEqual(result, 1)
If given no arguments, usage documentation is printed to stderr and C{1}
dataset/ETHPy150Open ClusterHQ/eliot/eliot/tests/test_filter.py/MainTests.test_noArguments