37 lines
1,002 B
JavaScript
37 lines
1,002 B
JavaScript
import { createFakeDateClass, DEFAULT_ARGS, useRealDate } from './fake_date';
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describe('spec/helpers/fake_date', () => {
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describe('createFakeDateClass', () => {
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let FakeDate;
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beforeAll(() => {
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useRealDate();
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});
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beforeEach(() => {
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FakeDate = createFakeDateClass(DEFAULT_ARGS);
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});
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it('should use default args', () => {
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expect(new FakeDate()).toMatchInlineSnapshot(`2020-07-06T00:00:00.000Z`);
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});
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it('should use default args when called as a function', () => {
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expect(FakeDate()).toMatchInlineSnapshot(
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`"Mon Jul 06 2020 00:00:00 GMT+0000 (Greenwich Mean Time)"`,
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);
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});
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it('should have deterministic now()', () => {
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expect(FakeDate.now()).toMatchInlineSnapshot(`1593993600000`);
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});
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it('should be instanceof Date', () => {
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expect(new FakeDate()).toBeInstanceOf(Date);
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});
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it('should be instanceof self', () => {
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expect(new FakeDate()).toBeInstanceOf(FakeDate);
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});
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});
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});
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