/** * @license * Copyright Google Inc. All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.io/license */ import localeEn from '../../locales/en'; import localeEsUS from '../../locales/es-US'; import localeFr from '../../locales/fr'; import {registerLocaleData, CurrencyPipe, DecimalPipe, PercentPipe} from '@angular/common'; import {beforeEach, describe, expect, it} from '@angular/core/testing/src/testing_internal'; { describe('Number pipes', () => { beforeAll(() => { registerLocaleData(localeEn); registerLocaleData(localeEsUS); registerLocaleData(localeFr); }); function isNumeric(value: any): boolean { return !isNaN(value - parseFloat(value)); } describe('DecimalPipe', () => { describe('transform', () => { let pipe: DecimalPipe; beforeEach(() => { pipe = new DecimalPipe('en-US'); }); it('should return correct value for numbers', () => { expect(pipe.transform(12345)).toEqual('12,345'); expect(pipe.transform(123, '.2')).toEqual('123.00'); expect(pipe.transform(1, '3.')).toEqual('001'); expect(pipe.transform(1.1, '3.4-5')).toEqual('001.1000'); expect(pipe.transform(1.123456, '3.4-5')).toEqual('001.12346'); expect(pipe.transform(1.1234)).toEqual('1.123'); expect(pipe.transform(1.123456, '.2')).toEqual('1.123'); expect(pipe.transform(1.123456, '.4')).toEqual('1.1235'); }); it('should support strings', () => { expect(pipe.transform('12345')).toEqual('12,345'); expect(pipe.transform('123', '.2')).toEqual('123.00'); expect(pipe.transform('1', '3.')).toEqual('001'); expect(pipe.transform('1.1', '3.4-5')).toEqual('001.1000'); expect(pipe.transform('1.123456', '3.4-5')).toEqual('001.12346'); expect(pipe.transform('1.1234')).toEqual('1.123'); }); it('should not support other objects', () => { expect(() => pipe.transform({})) .toThrowError( `InvalidPipeArgument: '[object Object] is not a number' for pipe 'DecimalPipe'`); expect(() => pipe.transform('123abc')) .toThrowError(`InvalidPipeArgument: '123abc is not a number' for pipe 'DecimalPipe'`); }); it('should throw if minFractionDigits is explicitly higher than maxFractionDigits', () => { expect(() => pipe.transform('1.1', '3.4-2')).toThrowError(/is higher than the maximum/); }); }); describe('transform with custom locales', () => { it('should return the correct format for es-US', () => { const pipe = new DecimalPipe('es-US'); expect(pipe.transform('9999999.99', '1.2-2')).toEqual('9,999,999.99'); }); }); }); describe('PercentPipe', () => { let pipe: PercentPipe; beforeEach(() => { pipe = new PercentPipe('en-US'); }); describe('transform', () => { it('should return correct value for numbers', () => { expect(pipe.transform(1.23)).toEqual('123%'); expect(pipe.transform(1.2, '.2')).toEqual('120.00%'); expect(pipe.transform(1.2, '4.2')).toEqual('0,120.00%'); expect(pipe.transform(1.2, '4.2', 'fr')).toEqual('0 120,00 %'); // see issue #20136 expect(pipe.transform(0.12345674, '0.0-10')).toEqual('12.345674%'); expect(pipe.transform(0, '0.0-10')).toEqual('0%'); expect(pipe.transform(0.00, '0.0-10')).toEqual('0%'); expect(pipe.transform(1, '0.0-10')).toEqual('100%'); expect(pipe.transform(0.1, '0.0-10')).toEqual('10%'); expect(pipe.transform(0.12, '0.0-10')).toEqual('12%'); expect(pipe.transform(0.123, '0.0-10')).toEqual('12.3%'); expect(pipe.transform(12.3456, '0.0-10')).toEqual('1,234.56%'); expect(pipe.transform(12.345600, '0.0-10')).toEqual('1,234.56%'); expect(pipe.transform(12.345699999, '0.0-6')).toEqual('1,234.57%'); expect(pipe.transform(12.345699999, '0.4-6')).toEqual('1,234.5700%'); expect(pipe.transform(100, '0.4-6')).toEqual('10,000.0000%'); expect(pipe.transform(100, '0.0-10')).toEqual('10,000%'); expect(pipe.transform(1.5e2)).toEqual('15,000%'); expect(pipe.transform(1e100)).toEqual('1E+102%'); }); it('should not support other objects', () => { expect(() => pipe.transform({})) .toThrowError( `InvalidPipeArgument: '[object Object] is not a number' for pipe 'PercentPipe'`); }); }); }); describe('CurrencyPipe', () => { let pipe: CurrencyPipe; beforeEach(() => { pipe = new CurrencyPipe('en-US'); }); describe('transform', () => { it('should return correct value for numbers', () => { expect(pipe.transform(123)).toEqual('$123.00'); expect(pipe.transform(12, 'EUR', 'code', '.1')).toEqual('EUR12.0'); expect(pipe.transform(5.1234, 'USD', 'code', '.0-3')).toEqual('USD5.123'); expect(pipe.transform(5.1234, 'USD', 'code')).toEqual('USD5.12'); expect(pipe.transform(5.1234, 'USD', 'symbol')).toEqual('$5.12'); expect(pipe.transform(5.1234, 'CAD', 'symbol')).toEqual('CA$5.12'); expect(pipe.transform(5.1234, 'CAD', 'symbol-narrow')).toEqual('$5.12'); expect(pipe.transform(5.1234, 'CAD', 'symbol-narrow', '5.2-2')).toEqual('$00,005.12'); expect(pipe.transform(5.1234, 'CAD', 'symbol-narrow', '5.2-2', 'fr')) .toEqual('00 005,12 $'); }); it('should not support other objects', () => { expect(() => pipe.transform({})) .toThrowError( `InvalidPipeArgument: '[object Object] is not a number' for pipe 'CurrencyPipe'`); }); it('should warn if you are using the v4 signature', () => { const warnSpy = spyOn(console, 'warn'); pipe.transform(123, 'USD', true); expect(warnSpy).toHaveBeenCalledWith( `Warning: the currency pipe has been changed in Angular v5. The symbolDisplay option (third parameter) is now a string instead of a boolean. The accepted values are "code", "symbol" or "symbol-narrow".`); }); }); }); describe('isNumeric', () => { it('should return true when passing correct numeric string', () => { expect(isNumeric('2')).toBe(true); }); it('should return true when passing correct double string', () => { expect(isNumeric('1.123')).toBe(true); }); it('should return true when passing correct negative string', () => { expect(isNumeric('-2')).toBe(true); }); it('should return true when passing correct scientific notation string', () => { expect(isNumeric('1e5')).toBe(true); }); it('should return false when passing incorrect numeric', () => { expect(isNumeric('a')).toBe(false); }); it('should return false when passing parseable but non numeric', () => { expect(isNumeric('2a')).toBe(false); }); }); }); }