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import {
afterEach,
beforeEach,
describe,
expect,
it,
jest,
} from '@jest/globals';
import { renderHook, waitFor } from '@testing-library/react';
import { useComments } from './use-comments';
describe('useComments', () => {
beforeEach(() => {
/* Not sure why it is needed, but without it Jest was complaining with
* `Jest worker encountered 4 child process exceptions`... Maybe because of
* useSWR? */
jest.useFakeTimers({
doNotFake: ['queueMicrotask'],
});
});
afterEach(() => {
jest.runOnlyPendingTimers();
jest.useRealTimers();
});
/* eslint-disable max-statements */
it('fetch the requested comments', async () => {
const { result } = renderHook(() => useComments({}));
// Inaccurate assertions count because of waitFor...
//expect.assertions(8);
expect.hasAssertions();
expect(result.current.comments).toBeUndefined();
expect(result.current.isError).toBe(false);
expect(result.current.isLoading).toBe(true);
expect(result.current.isValidating).toBe(true);
jest.advanceTimersToNextTimer();
await waitFor(() => expect(result.current.comments).toBeDefined());
expect(result.current.isError).toBe(false);
expect(result.current.isLoading).toBe(false);
expect(result.current.isValidating).toBe(false);
});
/* eslint-enable max-statements */
});
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