angular-docs-cn/modules/@angular/common/test/pipes/uppercase_pipe_spec.ts

44 lines
1.1 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 {UpperCasePipe} from '@angular/common';
import {beforeEach, describe, expect, it} from '@angular/core/testing/testing_internal';
export function main() {
describe('UpperCasePipe', () => {
let upper: string;
let lower: string;
let pipe: UpperCasePipe;
beforeEach(() => {
lower = 'something';
upper = 'SOMETHING';
pipe = new UpperCasePipe();
});
describe('transform', () => {
it('should return uppercase', () => {
const val = pipe.transform(lower);
expect(val).toEqual(upper);
});
it('should uppercase when there is a new value', () => {
const val = pipe.transform(lower);
expect(val).toEqual(upper);
const val2 = pipe.transform('wat');
expect(val2).toEqual('WAT');
});
it('should not support other objects',
() => { expect(() => pipe.transform(<any>{})).toThrowError(); });
});
});
}