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* Adds toBeDate() * Adds contributor * Fixes toBeDate() snapshot test
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| // Jest Snapshot v1, https://goo.gl/fbAQLP | ||
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| exports[`.not.toBeDate fails when given a date 1`] = ` | ||
| "<dim>expect(</><red>received</><dim>).not.toBeDate(</><dim>)</> | ||
| Expected value to not be a date received: | ||
| <red>2018-01-01T13:00:00.000Z</>" | ||
| `; | ||
| exports[`.toBeDate fails when not given a date 1`] = ` | ||
| "<dim>expect(</><red>received</><dim>).toBeDate(</><dim>)</> | ||
| Expected value to be a date received: | ||
| <red>false</>" | ||
| `; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| import { matcherHint, printReceived } from 'jest-matcher-utils'; | ||
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| import predicate from './predicate'; | ||
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| const passMessage = received => () => | ||
| matcherHint('.not.toBeDate', 'received', '') + | ||
| '\n\n' + | ||
| 'Expected value to not be a date received:\n' + | ||
| ` ${printReceived(received)}`; | ||
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| const failMessage = received => () => | ||
| matcherHint('.toBeDate', 'received', '') + | ||
| '\n\n' + | ||
| 'Expected value to be a date received:\n' + | ||
| ` ${printReceived(received)}`; | ||
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| export default { | ||
| toBeDate: expected => { | ||
| const pass = predicate(expected); | ||
| if (pass) { | ||
| return { pass: true, message: passMessage(expected) }; | ||
| } | ||
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| return { pass: false, message: failMessage(expected) }; | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| import each from 'jest-each'; | ||
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| import matcher from './'; | ||
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| expect.extend(matcher); | ||
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| describe('.toBeDate', () => { | ||
| test('passes when given a date', () => { | ||
| expect(new Date()).toBeDate(); | ||
| }); | ||
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| test('fails when not given a date', () => { | ||
| expect(() => expect(false).toBeDate()).toThrowErrorMatchingSnapshot(); | ||
| }); | ||
| }); | ||
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| describe('.not.toBeDate', () => { | ||
| each([ | ||
| [false], | ||
| [true], | ||
| [0], | ||
| [''], | ||
| [{}], | ||
| [() => {}], | ||
| [undefined], | ||
| [null], | ||
| [NaN] | ||
| ]).test('passes when not given a date: %s', given => { | ||
| expect(given).not.toBeDate(); | ||
| }); | ||
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| test('fails when given a date', () => { | ||
| expect(() => expect(new Date('2018-01-01T13:00:00.000Z')).not.toBeDate()).toThrowErrorMatchingSnapshot(); | ||
| }); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| function is(type) { | ||
| return value => Object.prototype.toString.call(value) === `[object ${type}]`; | ||
| } | ||
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| let hasDateType = is('Date'); | ||
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| function isDate(value) { | ||
| return hasDateType(value) && !isNaN(value); | ||
| } | ||
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| export default expected => isDate(expected); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| import each from 'jest-each'; | ||
| import predicate from './predicate'; | ||
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| describe('toBeDate Predicate', () => { | ||
| test('returns true when given a date', () => { | ||
| expect(predicate(new Date('12/25/2017'))).toBe(true); | ||
| }); | ||
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| each([[true], [false], [''], [0], [{}], [() => {}], [undefined], [null], [NaN]]).test( | ||
| 'returns false when given: %s', | ||
| given => { | ||
| expect(predicate(given)).toBe(false); | ||
| } | ||
| ); | ||
| }); |