56 lines
2.0 KiB
TypeScript
56 lines
2.0 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {convertToParamMap, ParamMap, Params} from '../src/shared';
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describe('ParamsMap', () => {
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it('should returns whether a parameter is present', () => {
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const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
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expect(map.has('single')).toEqual(true);
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expect(map.has('multiple')).toEqual(true);
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expect(map.has('not here')).toEqual(false);
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});
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it('should returns the name of the parameters', () => {
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const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
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expect(map.keys).toEqual(['single', 'multiple']);
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});
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it('should support single valued parameters', () => {
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const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
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expect(map.get('single')).toEqual('s');
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expect(map.get('multiple')).toEqual('m1');
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});
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it('should support multiple valued parameters', () => {
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const map = convertToParamMap({single: 's', multiple: ['m1', 'm2']});
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expect(map.getAll('single')).toEqual(['s']);
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expect(map.getAll('multiple')).toEqual(['m1', 'm2']);
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});
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it('should return `null` when a single valued element is absent', () => {
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const map = convertToParamMap({});
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expect(map.get('name')).toEqual(null);
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});
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it('should return `[]` when a multiple valued element is absent', () => {
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const map = convertToParamMap({});
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expect(map.getAll('name')).toEqual([]);
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});
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it('should not error when trying to call ParamMap.get function using an object created with Object.create() function',
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() => {
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const objectToMap: Params = Object.create(null);
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objectToMap['single'] = 's';
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objectToMap['multiple'] = ['m1', 'm2'];
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const paramMaps: ParamMap = convertToParamMap(objectToMap);
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expect(() => paramMaps.get('single')).not.toThrow();
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expect(paramMaps.get('single')).toEqual('s');
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});
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});
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