gitlab-org--gitlab-foss/spec/frontend/__helpers__/fake_date_spec.js

37 lines
1,002 B
JavaScript

import { createFakeDateClass, DEFAULT_ARGS, useRealDate } from './fake_date';
describe('spec/helpers/fake_date', () => {
describe('createFakeDateClass', () => {
let FakeDate;
beforeAll(() => {
useRealDate();
});
beforeEach(() => {
FakeDate = createFakeDateClass(DEFAULT_ARGS);
});
it('should use default args', () => {
expect(new FakeDate()).toMatchInlineSnapshot(`2020-07-06T00:00:00.000Z`);
});
it('should use default args when called as a function', () => {
expect(FakeDate()).toMatchInlineSnapshot(
`"Mon Jul 06 2020 00:00:00 GMT+0000 (Greenwich Mean Time)"`,
);
});
it('should have deterministic now()', () => {
expect(FakeDate.now()).toMatchInlineSnapshot(`1593993600000`);
});
it('should be instanceof Date', () => {
expect(new FakeDate()).toBeInstanceOf(Date);
});
it('should be instanceof self', () => {
expect(new FakeDate()).toBeInstanceOf(FakeDate);
});
});
});