def test_show_login_error():
"""
Ensures that an error message is displayed in the login dialog.
"""
mock_controller = mock.MagicMock()
w = Window()
w.setup(mock_controller)
w.login_dialog = mock.MagicMock()
w.show_login_error('boom')
w.login_dialog.error.assert_called_once_with('boom')
def test_show_login_error(mocker):
"""
Ensures that an error message is displayed in the login dialog.
"""
w = Window()
w.show_login = mocker.MagicMock()
w.setup(mocker.MagicMock())
w.login_dialog = mocker.MagicMock()
w.show_login_error("boom")
w.login_dialog.error.assert_called_once_with("boom")