angular-cn/modules/@angular/common/test/pipes/replace_pipe_spec.ts

70 lines
2.4 KiB
TypeScript

/**
* @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 {ddescribe, describe, it, iit, xit, expect, beforeEach, afterEach, inject,} from '@angular/core/testing/testing_internal';
import {AsyncTestCompleter} from '@angular/core/testing/testing_internal';
import {ReplacePipe} from '@angular/common';
import {RegExpWrapper, StringJoiner} from '../../src/facade/lang';
export function main() {
describe('ReplacePipe', () => {
var someNumber: number;
var str: string;
var pipe: ReplacePipe;
beforeEach(() => {
someNumber = 42;
str = 'Douglas Adams';
pipe = new ReplacePipe();
});
describe('transform', () => {
it('should not support input other than strings and numbers', () => {
expect(() => pipe.transform({}, 'Douglas', 'Hugh')).toThrow();
expect(() => pipe.transform([1, 2, 3], 'Douglas', 'Hugh')).toThrow();
});
it('should not support patterns other than strings and regular expressions', () => {
expect(() => pipe.transform(str, <any>{}, 'Hugh')).toThrow();
expect(() => pipe.transform(str, <any>null, 'Hugh')).toThrow();
expect(() => pipe.transform(str, <any>123, 'Hugh')).toThrow();
});
it('should not support replacements other than strings and functions', () => {
expect(() => pipe.transform(str, 'Douglas', <any>{})).toThrow();
expect(() => pipe.transform(str, 'Douglas', <any>null)).toThrow();
expect(() => pipe.transform(str, 'Douglas', <any>123)).toThrow();
});
it('should return a new string with the pattern replaced', () => {
var result1 = pipe.transform(str, 'Douglas', 'Hugh');
var result2 = pipe.transform(str, RegExpWrapper.create('a'), '_');
var result3 = pipe.transform(str, RegExpWrapper.create('a', 'i'), '_');
var f = ((x: any) => { return 'Adams!'; });
var result4 = pipe.transform(str, 'Adams', f);
var result5 = pipe.transform(someNumber, '2', '4');
expect(result1).toEqual('Hugh Adams');
expect(result2).toEqual('Dougl_s Ad_ms');
expect(result3).toEqual('Dougl_s _d_ms');
expect(result4).toEqual('Douglas Adams!');
expect(result5).toEqual('44');
});
});
});
}