def test_duplicateWarningSuppressed(self):
        # Emit the warning and assert that it shows up
        self.test_warning()
        # Emit the warning again and assert that the stream still only has one
        # warning on it.
        self.test_warning()
A warning emitted twice within a single test is only written to the
dataset/ETHPy150Open twisted/twisted/twisted/trial/test/test_reporter.py/ReporterTests.test_duplicateWarningSuppressed