48 lines
1.6 KiB
TypeScript
48 lines
1.6 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 {I18nSelectPipe} from '@angular/common';
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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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describe('I18nSelectPipe', () => {
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const pipe: I18nSelectPipe = new I18nSelectPipe();
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const mapping = {'male': 'Invite him.', 'female': 'Invite her.', 'other': 'Invite them.'};
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it('should be marked as pure', () => {
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expect(new PipeResolver(new JitReflector()).resolve(I18nSelectPipe)!.pure).toEqual(true);
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});
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describe('transform', () => {
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it('should return the "male" text if value is "male"', () => {
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const val = pipe.transform('male', mapping);
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expect(val).toEqual('Invite him.');
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});
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it('should return the "female" text if value is "female"', () => {
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const val = pipe.transform('female', mapping);
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expect(val).toEqual('Invite her.');
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});
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it('should return the "other" text if value is neither "male" nor "female"', () => {
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expect(pipe.transform('Anything else', mapping)).toEqual('Invite them.');
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});
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it('should return an empty text if value is null or undefined', () => {
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expect(pipe.transform(null, mapping)).toEqual('');
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expect(pipe.transform(void 0, mapping)).toEqual('');
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});
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it('should throw on bad arguments', () => {
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expect(() => pipe.transform('male', <any>'hey')).toThrowError();
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});
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});
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});
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}
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