wallet-core/packages/merchant-backoffice-ui/tests/hooks/notification.test.ts

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/*
This file is part of GNU Taler
(C) 2021 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
*
* @author Sebastian Javier Marchano (sebasjm)
*/
import { renderHook, act} from '@testing-library/preact-hooks';
import { useNotifications } from '../../src/hooks/notifications';
jest.useFakeTimers()
test('notification should disapear after timeout', () => {
jest.spyOn(global, 'setTimeout');
const timeout = 1000
const { result, rerender } = renderHook(() => useNotifications(undefined, timeout));
expect(result.current?.notifications.length).toBe(0);
act(() => {
result.current?.pushNotification({
message: 'some_id',
type: 'INFO'
});
});
expect(result.current?.notifications.length).toBe(1);
jest.advanceTimersByTime(timeout/2);
rerender()
expect(result.current?.notifications.length).toBe(1);
jest.advanceTimersByTime(timeout);
rerender()
expect(result.current?.notifications.length).toBe(0);
});