4180912538
The utility functions `formatNumber`, `formatPercent`, `formatCurrency`, and `formatDate` used by the number, percent, currency and date pipes are now available for developers who want to use them outside of templates. Fixes #20536 PR Close #22423
69 lines
2.4 KiB
TypeScript
69 lines
2.4 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {DatePipe, registerLocaleData} from '@angular/common';
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import localeEn from '@angular/common/locales/en';
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import localeEnExtra from '@angular/common/locales/extra/en';
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import {PipeResolver} from '@angular/compiler/src/pipe_resolver';
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import {JitReflector} from '@angular/platform-browser-dynamic/src/compiler_reflector';
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{
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let date: Date;
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describe('DatePipe', () => {
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const isoStringWithoutTime = '2015-01-01';
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let pipe: DatePipe;
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// Check the transformation of a date into a pattern
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function expectDateFormatAs(date: Date | string, pattern: any, output: string): void {
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expect(pipe.transform(date, pattern)).toEqual(output);
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}
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beforeAll(() => { registerLocaleData(localeEn, localeEnExtra); });
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beforeEach(() => {
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date = new Date(2015, 5, 15, 9, 3, 1, 550);
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pipe = new DatePipe('en-US');
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});
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it('should be marked as pure', () => {
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expect(new PipeResolver(new JitReflector()).resolve(DatePipe) !.pure).toEqual(true);
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});
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describe('supports', () => {
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it('should support date', () => { expect(() => pipe.transform(date)).not.toThrow(); });
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it('should support int', () => { expect(() => pipe.transform(123456789)).not.toThrow(); });
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it('should support numeric strings',
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() => { expect(() => pipe.transform('123456789')).not.toThrow(); });
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it('should support decimal strings',
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() => { expect(() => pipe.transform('123456789.11')).not.toThrow(); });
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it('should support ISO string',
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() => expect(() => pipe.transform('2015-06-15T21:43:11Z')).not.toThrow());
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it('should return null for empty string',
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() => { expect(pipe.transform('')).toEqual(null); });
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it('should return null for NaN', () => { expect(pipe.transform(Number.NaN)).toEqual(null); });
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it('should support ISO string without time',
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() => { expect(() => pipe.transform(isoStringWithoutTime)).not.toThrow(); });
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it('should not support other objects',
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() => { expect(() => pipe.transform({})).toThrowError(/InvalidPipeArgument/); });
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});
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describe('transform', () => {
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it('should use "mediumDate" as the default format',
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() => expect(pipe.transform('2017-01-11T10:14:39+0000')).toEqual('Jan 11, 2017'));
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});
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});
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}
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