def test_ensure_clear_observer_sets_observer_to_none(self, _):
presenter = PeaksViewerCollectionPresenter(MagicMock())
presenter._ads_observer = MagicMock()
presenter.clear_observer()
self.assertEqual(presenter._ads_observer, None)
def test_ensure_that_the_ads_observer_calls_remove_handle(self, _):
presenter = PeaksViewerCollectionPresenter(MagicMock())
presenter.delete_handle = MagicMock()
self.assertTrue(isinstance(presenter._ads_observer, SliceViewerADSObserver))
presenter._ads_observer = SliceViewerADSObserver(presenter.replace_handle, presenter.rename_handle,
presenter.clear_handle, presenter.delete_handle)
CreateSampleWorkspace(OutputWorkspace="ws")
ADS.remove("ws")
presenter.delete_handle.assert_called_once_with("ws")