def test_show_sources(mocker):
"""
Ensure the sources list is passed to the main view to be updated.
"""
w = Window()
w.main_view = mocker.MagicMock()
w.show_sources([1, 2, 3])
w.main_view.show_sources.assert_called_once_with([1, 2, 3])
def test_show_sources():
"""
Ensure the sources list is passed to the source list widget to be updated.
"""
w = Window()
w.main_view = mock.MagicMock()
w.show_sources([1, 2, 3])
w.main_view.source_list.update.assert_called_once_with([1, 2, 3])