angular-docs-cn/modules/@angular/compiler/test/i18n/serializers/placeholder_spec.ts

/**
 * @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 {PlaceholderRegistry} from '../../../src/i18n/serializers/placeholder';

export function main(): void {
  describe('PlaceholderRegistry', () => {
    let reg: PlaceholderRegistry;

    beforeEach(() => { reg = new PlaceholderRegistry(); });

    describe('tag placeholder', () => {
      it('should generate names for well known tags', () => {
        expect(reg.getStartTagPlaceholderName('p', {}, false)).toEqual('START_PARAGRAPH');
        expect(reg.getCloseTagPlaceholderName('p')).toEqual('CLOSE_PARAGRAPH');
      });

      it('should generate names for custom tags', () => {
        expect(reg.getStartTagPlaceholderName('my-cmp', {}, false)).toEqual('START_TAG_MY-CMP');
        expect(reg.getCloseTagPlaceholderName('my-cmp')).toEqual('CLOSE_TAG_MY-CMP');
      });

      it('should generate the same name for the same tag', () => {
        expect(reg.getStartTagPlaceholderName('p', {}, false)).toEqual('START_PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('p', {}, false)).toEqual('START_PARAGRAPH');
      });

      it('should be case sensitive for tag name', () => {
        expect(reg.getStartTagPlaceholderName('p', {}, false)).toEqual('START_PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('P', {}, false)).toEqual('START_PARAGRAPH_1');
        expect(reg.getCloseTagPlaceholderName('p')).toEqual('CLOSE_PARAGRAPH');
        expect(reg.getCloseTagPlaceholderName('P')).toEqual('CLOSE_PARAGRAPH_1');
      });

      it('should generate the same name for the same tag with the same attributes', () => {
        expect(reg.getStartTagPlaceholderName('p', {foo: 'a', bar: 'b'}, false))
            .toEqual('START_PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('p', {foo: 'a', bar: 'b'}, false))
            .toEqual('START_PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('p', {bar: 'b', foo: 'a'}, false))
            .toEqual('START_PARAGRAPH');
      });

      it('should generate different names for the same tag with different attributes', () => {
        expect(reg.getStartTagPlaceholderName('p', {foo: 'a', bar: 'b'}, false))
            .toEqual('START_PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('p', {foo: 'a'}, false)).toEqual('START_PARAGRAPH_1');
      });

      it('should be case sensitive for attributes', () => {
        expect(reg.getStartTagPlaceholderName('p', {foo: 'a', bar: 'b'}, false))
            .toEqual('START_PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('p', {fOo: 'a', bar: 'b'}, false))
            .toEqual('START_PARAGRAPH_1');
        expect(reg.getStartTagPlaceholderName('p', {fOo: 'a', bAr: 'b'}, false))
            .toEqual('START_PARAGRAPH_2');
      });

      it('should support void tags', () => {
        expect(reg.getStartTagPlaceholderName('p', {}, true)).toEqual('PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('p', {}, true)).toEqual('PARAGRAPH');
        expect(reg.getStartTagPlaceholderName('p', {other: 'true'}, true)).toEqual('PARAGRAPH_1');
      });
    });

    describe('arbitrary placeholders', () => {
      it('should generate the same name given the same name and content', () => {
        expect(reg.getPlaceholderName('name', 'content')).toEqual('NAME');
        expect(reg.getPlaceholderName('name', 'content')).toEqual('NAME');
      });

      it('should generate a different name given different content', () => {
        expect(reg.getPlaceholderName('name', 'content1')).toEqual('NAME');
        expect(reg.getPlaceholderName('name', 'content2')).toEqual('NAME_1');
        expect(reg.getPlaceholderName('name', 'content3')).toEqual('NAME_2');
      });

      it('should generate a different name given different names', () => {
        expect(reg.getPlaceholderName('name1', 'content')).toEqual('NAME1');
        expect(reg.getPlaceholderName('name2', 'content')).toEqual('NAME2');
      });

    });
  });
}