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63 lines
1.5 KiB
63 lines
1.5 KiB
describe('Test warning', () => {
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let spy: jest.SpyInstance;
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beforeAll(() => {
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spy = jest.spyOn(console, 'error');
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});
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afterAll(() => {
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spy.mockRestore();
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});
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beforeEach(() => {
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jest.resetModules();
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});
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afterEach(() => {
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spy.mockReset();
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});
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it('Test noop', async () => {
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const { noop } = await import('../warning');
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const value = noop();
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expect(value).toBe(undefined);
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expect(spy).not.toHaveBeenCalled();
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expect(noop).not.toThrow();
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});
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describe('process.env.NODE_ENV !== "production"', () => {
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it('If `false`, exec `console.error`', async () => {
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const warning = (await import('../warning')).default;
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warning(false, 'error');
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expect(spy).toHaveBeenCalled();
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});
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it('If `true`, do not exec `console.error`', async () => {
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const warning = (await import('../warning')).default;
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warning(true, 'error message');
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expect(spy).not.toHaveBeenCalled();
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});
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});
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describe('process.env.NODE_ENV === "production"', () => {
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it('Whether `true` or `false`, do not exec `console.error`', async () => {
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const prevEnv = process.env.NODE_ENV;
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process.env.NODE_ENV = 'production';
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const { default: warning, noop } = await import('../warning');
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expect(warning).toEqual(noop);
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warning(false, 'error message');
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expect(spy).not.toHaveBeenCalled();
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warning(true, 'error message');
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expect(spy).not.toHaveBeenCalled();
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process.env.NODE_ENV = prevEnv;
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});
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});
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});
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