def test_attachTransmissionCurve_None(self): """Expect no failure and non-None output from attachTransmissionCurve. """ curve = None combined = ipIsr.attachTransmissionCurve(self.inputExp, opticsTransmission=curve, filterTransmission=curve, sensorTransmission=curve, atmosphereTransmission=curve) # DM-19707: ip_isr functionality not fully tested by unit tests self.assertIsNotNone(combined)