def test__duration_getter(self):
        for signal in self.signals:
            self.assertAlmostEqual(signal.duration,
                                   signal.t_start - signal.t_stop,
                                   delta=1e-15)
dataset/ETHPy150Open NeuralEnsemble/python-neo/neo/test/coretest/test_analogsignal.py/TestAnalogSignalProperties.test__duration_getter/swapped operands of `-`