def test_stopProducing(self):
        self.transport.stopProducing()
        self.assertEqual(self.transport.producerState, 'stopped')
L{StringTransport.stopProducing} changes the C{'producerState'} of the
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_stringtransport.py/StringTransportTests.test_stopProducing