angular-docs-cn/packages/core/test/util/stringify_spec.ts

29 lines
965 B
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 {concatStringsWithSpace} from '@angular/core/src/util/stringify';
describe('stringify', () => {
describe('concatStringsWithSpace', () => {
it('should concat with null', () => {
expect(concatStringsWithSpace(null, null)).toEqual('');
expect(concatStringsWithSpace('a', null)).toEqual('a');
expect(concatStringsWithSpace(null, 'b')).toEqual('b');
});
it('should concat when empty', () => {
expect(concatStringsWithSpace('', '')).toEqual('');
expect(concatStringsWithSpace('a', '')).toEqual('a');
expect(concatStringsWithSpace('', 'b')).toEqual('b');
});
it('should concat when not empty', () => {
expect(concatStringsWithSpace('before', 'after')).toEqual('before after');
});
});
});