angular-cn/packages/common/test/i18n/format_number_spec.ts

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/**
* @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 '@angular/common/locales/en';
import localeEsUS from '@angular/common/locales/es-US';
import localeFr from '@angular/common/locales/fr';
import localeAr from '@angular/common/locales/ar';
import {formatCurrency, formatNumber, formatPercent, registerLocaleData} from '@angular/common';
import {describe, expect, it} from '@angular/core/testing/src/testing_internal';
import {ɵDEFAULT_LOCALE_ID as DEFAULT_LOCALE_ID} from '@angular/core';
describe('Format number', () => {
beforeAll(() => {
registerLocaleData(localeEn);
registerLocaleData(localeEsUS);
registerLocaleData(localeFr);
registerLocaleData(localeAr);
});
describe('Number', () => {
describe('transform', () => {
it('should return correct value for numbers', () => {
expect(formatNumber(12345, DEFAULT_LOCALE_ID)).toEqual('12,345');
expect(formatNumber(123, DEFAULT_LOCALE_ID, '.2')).toEqual('123.00');
expect(formatNumber(1, DEFAULT_LOCALE_ID, '3.')).toEqual('001');
expect(formatNumber(1.1, DEFAULT_LOCALE_ID, '3.4-5')).toEqual('001.1000');
expect(formatNumber(1.123456, DEFAULT_LOCALE_ID, '3.4-5')).toEqual('001.12346');
expect(formatNumber(1.1234, DEFAULT_LOCALE_ID)).toEqual('1.123');
expect(formatNumber(1.123456, DEFAULT_LOCALE_ID, '.2')).toEqual('1.123');
expect(formatNumber(1.123456, DEFAULT_LOCALE_ID, '.4')).toEqual('1.1235');
});
it('should throw if minFractionDigits is explicitly higher than maxFractionDigits', () => {
expect(() => formatNumber(1.1, DEFAULT_LOCALE_ID, '3.4-2'))
.toThrowError(/is higher than the maximum/);
});
});
describe('transform with custom locales', () => {
it('should return the correct format for es-US',
() => { expect(formatNumber(9999999.99, 'es-US', '1.2-2')).toEqual('9,999,999.99'); });
});
});
describe('Percent', () => {
describe('transform', () => {
it('should return correct value for numbers', () => {
expect(formatPercent(1.23, DEFAULT_LOCALE_ID)).toEqual('123%');
expect(formatPercent(1.2, DEFAULT_LOCALE_ID, '.2')).toEqual('120.00%');
expect(formatPercent(1.2, DEFAULT_LOCALE_ID, '4.2')).toEqual('0,120.00%');
expect(formatPercent(1.2, 'fr', '4.2')).toEqual('0 120,00 %');
expect(formatPercent(1.2, 'ar', '4.2')).toEqual('0,120.00%');
// see issue #20136
expect(formatPercent(0.12345674, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('12.345674%');
expect(formatPercent(0, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('0%');
expect(formatPercent(0.00, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('0%');
expect(formatPercent(1, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('100%');
expect(formatPercent(0.1, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('10%');
expect(formatPercent(0.12, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('12%');
expect(formatPercent(0.123, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('12.3%');
expect(formatPercent(12.3456, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('1,234.56%');
expect(formatPercent(12.345600, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('1,234.56%');
expect(formatPercent(12.345699999, DEFAULT_LOCALE_ID, '0.0-6')).toEqual('1,234.57%');
expect(formatPercent(12.345699999, DEFAULT_LOCALE_ID, '0.4-6')).toEqual('1,234.5700%');
expect(formatPercent(100, DEFAULT_LOCALE_ID, '0.4-6')).toEqual('10,000.0000%');
expect(formatPercent(100, DEFAULT_LOCALE_ID, '0.0-10')).toEqual('10,000%');
expect(formatPercent(1.5e2, DEFAULT_LOCALE_ID)).toEqual('15,000%');
expect(formatPercent(1e100, DEFAULT_LOCALE_ID)).toEqual('1E+102%');
});
});
});
describe('Currency', () => {
const defaultCurrencyCode = 'USD';
describe('transform', () => {
it('should return correct value for numbers', () => {
expect(formatCurrency(123, DEFAULT_LOCALE_ID, '$')).toEqual('$123.00');
expect(formatCurrency(12, DEFAULT_LOCALE_ID, 'EUR', 'EUR', '.1')).toEqual('EUR12.0');
expect(formatCurrency(
5.1234, DEFAULT_LOCALE_ID, defaultCurrencyCode, defaultCurrencyCode, '.0-3'))
.toEqual('USD5.123');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, defaultCurrencyCode)).toEqual('USD5.12');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, '$')).toEqual('$5.12');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'CA$')).toEqual('CA$5.12');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, '$')).toEqual('$5.12');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, '$', defaultCurrencyCode, '5.2-2'))
.toEqual('$00,005.12');
expect(formatCurrency(5.1234, 'fr', '$', defaultCurrencyCode, '5.2-2'))
.toEqual('00 005,12 $');
expect(formatCurrency(5, 'fr', '$US', defaultCurrencyCode)).toEqual('5,00 $US');
});
it('should support any currency code name', () => {
// currency code is unknown, default formatting options will be used
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'unexisting_ISO_code'))
.toEqual('unexisting_ISO_code5.12');
// currency code is USD, the pipe will format based on USD but will display "Custom name"
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'Custom name')).toEqual('Custom name5.12');
});
it('should round to the default number of digits if no digitsInfo', () => {
// IDR has a default number of digits of 0
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'IDR', 'IDR')).toEqual('IDR5');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'IDR', 'IDR', '.2')).toEqual('IDR5.12');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'Custom name', 'IDR'))
.toEqual('Custom name5');
// BHD has a default number of digits of 3
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'BHD', 'BHD')).toEqual('BHD5.123');
expect(formatCurrency(5.1234, DEFAULT_LOCALE_ID, 'BHD', 'BHD', '.1-2')).toEqual('BHD5.12');
});
});
});
});