def testReturnsWhatSingleExtractorReturns(self):
    detector = core.Detector(extractors=[TestExtractor()])
    self.assertEqual(detector.Detect("a b"), set(["b_0"]))
Test it returns what a single extractor returns.
dataset/ETHPy150Open google/grr/grr/path_detection/core_test.py/DetectorTest.testReturnsWhatSingleExtractorReturns