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Matthieu Riegler
5926bf452d
Ahead of #55283 and with what we learned from it, let's improve our test coverage on the i18n subsystem. PR Close #55532
251 lines
8.8 KiB
TypeScript
251 lines
8.8 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC 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 {CurrencyPipe, DecimalPipe, PercentPipe} from '@angular/common';
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import localeAr from '@angular/common/locales/ar';
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import localeDa from '@angular/common/locales/da';
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import localeDeAt from '@angular/common/locales/de-AT';
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import localeEn from '@angular/common/locales/en';
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import localeEsUS from '@angular/common/locales/es-US';
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import localeFr from '@angular/common/locales/fr';
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import {Component, ɵregisterLocaleData, ɵunregisterLocaleData} from '@angular/core';
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import {TestBed} from '@angular/core/testing';
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describe('Number pipes', () => {
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beforeAll(() => {
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ɵregisterLocaleData(localeEn);
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ɵregisterLocaleData(localeEsUS);
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ɵregisterLocaleData(localeFr);
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ɵregisterLocaleData(localeAr);
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ɵregisterLocaleData(localeDeAt);
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ɵregisterLocaleData(localeDa);
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});
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afterAll(() => ɵunregisterLocaleData());
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describe('DecimalPipe', () => {
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describe('transform', () => {
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let pipe: DecimalPipe;
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beforeEach(() => {
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pipe = new DecimalPipe('en-US');
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});
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it('should return correct value for numbers', () => {
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expect(pipe.transform(12345)).toEqual('12,345');
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expect(pipe.transform(1.123456, '3.4-5')).toEqual('001.12346');
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});
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it('should support strings', () => {
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expect(pipe.transform('12345')).toEqual('12,345');
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expect(pipe.transform('123', '.2')).toEqual('123.00');
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expect(pipe.transform('1', '3.')).toEqual('001');
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expect(pipe.transform('1.1', '3.4-5')).toEqual('001.1000');
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expect(pipe.transform('1.123456', '3.4-5')).toEqual('001.12346');
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expect(pipe.transform('1.1234')).toEqual('1.123');
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});
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it('should return null for NaN', () => {
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expect(pipe.transform(Number.NaN)).toEqual(null);
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});
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it('should return null for null', () => {
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expect(pipe.transform(null)).toEqual(null);
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});
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it('should return null for undefined', () => {
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expect(pipe.transform(undefined)).toEqual(null);
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});
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it('should not support other objects', () => {
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expect(() => pipe.transform({} as any)).toThrowError(
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`NG02100: InvalidPipeArgument: '[object Object] is not a number' for pipe 'DecimalPipe'`,
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);
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expect(() => pipe.transform('123abc')).toThrowError(
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`NG02100: InvalidPipeArgument: '123abc is not a number' for pipe 'DecimalPipe'`,
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);
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});
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});
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describe('transform with custom locales', () => {
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it('should return the correct format for es-US', () => {
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const pipe = new DecimalPipe('es-US');
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expect(pipe.transform('9999999.99', '1.2-2')).toEqual('9,999,999.99');
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});
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});
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it('should be available as a standalone pipe', () => {
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@Component({
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selector: 'test-component',
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imports: [DecimalPipe],
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template: '{{ value | number }}',
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standalone: true,
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})
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class TestComponent {
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value = 12345;
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}
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const fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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const content = fixture.nativeElement.textContent;
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expect(content).toBe('12,345');
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});
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});
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describe('PercentPipe', () => {
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let pipe: PercentPipe;
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beforeEach(() => {
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pipe = new PercentPipe('en-US');
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});
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describe('transform', () => {
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it('should return correct value for numbers', () => {
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expect(pipe.transform(1.23)).toEqual('123%');
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expect(pipe.transform(1.234)).toEqual('123%');
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expect(pipe.transform(1.236)).toEqual('124%');
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expect(pipe.transform(12.3456, '0.0-10')).toEqual('1,234.56%');
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});
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it('should return null for NaN', () => {
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expect(pipe.transform(Number.NaN)).toEqual(null);
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});
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it('should return null for null', () => {
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expect(pipe.transform(null)).toEqual(null);
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});
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it('should return null for undefined', () => {
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expect(pipe.transform(undefined)).toEqual(null);
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});
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it('should not support other objects', () => {
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expect(() => pipe.transform({} as any)).toThrowError(
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`NG02100: InvalidPipeArgument: '[object Object] is not a number' for pipe 'PercentPipe'`,
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);
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});
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});
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it('should be available as a standalone pipe', () => {
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@Component({
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selector: 'test-component',
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imports: [PercentPipe],
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template: '{{ value | percent }}',
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standalone: true,
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})
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class TestComponent {
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value = 15;
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}
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const fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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const content = fixture.nativeElement.textContent;
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expect(content).toBe('1,500%');
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});
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});
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describe('CurrencyPipe', () => {
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let pipe: CurrencyPipe;
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beforeEach(() => {
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pipe = new CurrencyPipe('en-US', 'USD');
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});
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describe('transform', () => {
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it('should return correct value for numbers', () => {
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expect(pipe.transform(123)).toEqual('$123.00');
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expect(pipe.transform(12, 'EUR', 'code', '.1')).toEqual('EUR12.0');
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expect(pipe.transform(5.1234, 'USD', 'code', '.0-3')).toEqual('USD5.123');
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expect(pipe.transform(5.1234, 'USD', 'code')).toEqual('USD5.12');
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expect(pipe.transform(5.1234, 'USD', '')).toEqual('5.12');
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expect(pipe.transform(5.1234, 'USD', 'symbol')).toEqual('$5.12');
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expect(pipe.transform(5.1234, 'CAD', 'symbol')).toEqual('CA$5.12');
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expect(pipe.transform(5.1234, 'CAD', 'symbol-narrow')).toEqual('$5.12');
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expect(pipe.transform(5.1234, 'CAD', 'symbol-narrow', '5.2-2')).toEqual('$00,005.12');
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expect(pipe.transform(5.1234, 'CAD', 'symbol-narrow', '5.2-2', 'fr')).toEqual(
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'00\u202f005,12 $',
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);
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expect(pipe.transform(5, 'USD', 'symbol', '', 'fr')).toEqual('5,00 $US');
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expect(pipe.transform(123456789, 'EUR', 'symbol', '', 'de-at')).toEqual('€ 123.456.789,00');
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expect(pipe.transform(5.1234, 'EUR', '', '', 'de-at')).toEqual('5,12');
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expect(pipe.transform(5.1234, 'DKK', '', '', 'da')).toEqual('5,12');
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// CLP doesn't have a subdivision, so it should not display decimals unless explicitly
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// told so
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expect(pipe.transform(5.1234, 'CLP', '')).toEqual('5');
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expect(pipe.transform(5.1234, 'CLP', '', '2.0-3')).toEqual('05.123');
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});
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it('should use the injected default currency code if none is provided', () => {
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const clpPipe = new CurrencyPipe('en-US', 'CLP');
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expect(clpPipe.transform(1234)).toEqual('CLP1,234');
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});
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it('should support any currency code name', () => {
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// currency code is unknown, default formatting options will be used
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expect(pipe.transform(5.1234, 'unexisting_ISO_code', 'symbol')).toEqual(
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'unexisting_ISO_code5.12',
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);
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// currency code is USD, the pipe will format based on USD but will display "Custom name"
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expect(pipe.transform(5.1234, 'USD', 'Custom name')).toEqual('Custom name5.12');
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// currency code is unknown, default formatting options will be used and will display
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// "Custom name"
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expect(pipe.transform(5.1234, 'unexisting_ISO_code', 'Custom name')).toEqual(
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'Custom name5.12',
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);
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});
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it('should return null for NaN', () => {
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expect(pipe.transform(Number.NaN)).toEqual(null);
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});
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it('should return null for null', () => {
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expect(pipe.transform(null)).toEqual(null);
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});
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it('should return null for undefined', () => {
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expect(pipe.transform(undefined)).toEqual(null);
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});
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it('should not support other objects', () => {
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expect(() => pipe.transform({} as any)).toThrowError(
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`NG02100: InvalidPipeArgument: '[object Object] is not a number' for pipe 'CurrencyPipe'`,
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);
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});
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it('should warn if you are using the v4 signature', () => {
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const warnSpy = spyOn(console, 'warn');
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pipe.transform(123, 'USD', true);
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expect(warnSpy).toHaveBeenCalledWith(
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`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".`,
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);
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});
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});
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it('should be available as a standalone pipe', () => {
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@Component({
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selector: 'test-component',
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imports: [CurrencyPipe],
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template: '{{ value | currency }}',
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standalone: true,
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})
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class TestComponent {
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value = 15;
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}
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const fixture = TestBed.createComponent(TestComponent);
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fixture.detectChanges();
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const content = fixture.nativeElement.textContent;
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expect(content).toBe('$15.00');
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});
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});
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});
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