def test_that_subscribers_notified_when_instrument_changed(self):
observer = Observer()
observer.update = mock.MagicMock()
self.data_context.instrumentNotifier.add_subscriber(observer)
self.view.set_instrument('MUSR', block=True)
self.view.set_instrument('CHRONUS')
observer.update.assert_called_once_with(self.data_context.instrumentNotifier, 'CHRONUS')
def test_that_signal_is_not_sent_if_item_updated_to_same_value(self):
context = MuonGuiContext()
observer = Observer()
observer.update = mock.MagicMock()
context.add_subscriber(observer)
context.update({'FirstGoodData': 12.0})
context.update_and_send_signal(FirstGoodData=12.0)
observer.update.assert_not_called()
def test_that_signal_is_sent_when_item_updates(self):
context = MuonGuiContext()
observer = Observer()
observer.update = mock.MagicMock()
context.add_subscriber(observer)
context.update_and_send_signal(FirstGoodData=12.0)
observer.update.assert_called_once_with(context.gui_variables_notifier, {'FirstGoodData': 12.0})
def test_that_changeing_alpha_correctly_updates_model(self):
perform_musr_file_finder(self)
self.view.grouppair_selector.setCurrentIndex(4)
observer = Observer()
observer.update = mock.MagicMock()
self.presenter.pairAlphaNotifier.add_subscriber(observer)
self.view.alpha_edit.setText('0.87')
self.view.alpha_edit.editingFinished.emit()
self.assertEqual(self.model.get_alpha('test_pair'), 0.87)
observer.update.assert_called_once_with(
self.presenter.pairAlphaNotifier, None)
