angular-cn/packages/router/test/shared.spec.ts

46 lines
1.5 KiB
TypeScript

/**
* @license
* Copyright Google LLC 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 {convertToParamMap, ParamMap} from '../src/shared';
describe('ParamsMap', () => {
it('should returns whether a parameter is present', () => {
const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
expect(map.has('single')).toEqual(true);
expect(map.has('multiple')).toEqual(true);
expect(map.has('not here')).toEqual(false);
});
it('should returns the name of the parameters', () => {
const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
expect(map.keys).toEqual(['single', 'multiple']);
});
it('should support single valued parameters', () => {
const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
expect(map.get('single')).toEqual('s');
expect(map.get('multiple')).toEqual('m1');
});
it('should support multiple valued parameters', () => {
const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
expect(map.getAll('single')).toEqual(['s']);
expect(map.getAll('multiple')).toEqual(['m1', 'm2']);
});
it('should return `null` when a single valued element is absent', () => {
const map = convertToParamMap({});
expect(map.get('name')).toEqual(null);
});
it('should return `[]` when a multiple valued element is absent', () => {
const map = convertToParamMap({});
expect(map.getAll('name')).toEqual([]);
});
});