def test_basic_empty(self):
    results = self._get_result_for_month(3)
    df.assert_that(results, df.equal_to([]))
    results.pipeline.run()
Test that the correct empty result is returned for a simple dataset.
dataset/ETHPy150Open GoogleCloudPlatform/DataflowPythonSDK/google/cloud/dataflow/examples/cookbook/filters_test.py/FiltersTest.test_basic_empty