96 lines
3.5 KiB
TypeScript
96 lines
3.5 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. 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 {HttpParams} from '@angular/common/http/src/params';
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{
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describe('HttpUrlEncodedParams', () => {
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describe('initialization', () => {
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it('should be empty at construction', () => {
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const body = new HttpParams();
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expect(body.toString()).toEqual('');
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});
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it('should parse an existing url', () => {
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const body = new HttpParams({fromString: 'a=b&c=d&c=e'});
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expect(body.getAll('a')).toEqual(['b']);
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expect(body.getAll('c')).toEqual(['d', 'e']);
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});
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});
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describe('lazy mutation', () => {
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it('should allow setting parameters', () => {
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const body = new HttpParams({fromString: 'a=b'});
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const mutated = body.set('a', 'c');
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expect(mutated.toString()).toEqual('a=c');
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});
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it('should allow appending parameters', () => {
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const body = new HttpParams({fromString: 'a=b'});
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const mutated = body.append('a', 'c');
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expect(mutated.toString()).toEqual('a=b&a=c');
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});
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it('should allow deletion of parameters', () => {
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const body = new HttpParams({fromString: 'a=b&c=d&e=f'});
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const mutated = body.delete('c');
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expect(mutated.toString()).toEqual('a=b&e=f');
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});
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it('should allow chaining of mutations', () => {
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const body = new HttpParams({fromString: 'a=b&c=d&e=f'});
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const mutated = body.append('e', 'y').delete('c').set('a', 'x').append('e', 'z');
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expect(mutated.toString()).toEqual('a=x&e=f&e=y&e=z');
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});
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it('should allow deletion of one value of a parameter', () => {
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const body = new HttpParams({fromString: 'a=1&a=2&a=3&a=4&a=5'});
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const mutated = body.delete('a', '2').delete('a', '4');
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expect(mutated.getAll('a')).toEqual(['1', '3', '5']);
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});
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it('should not repeat mutations that have already been materialized', () => {
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const body = new HttpParams({fromString: 'a=b'});
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const mutated = body.append('a', 'c');
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expect(mutated.toString()).toEqual('a=b&a=c');
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const mutated2 = mutated.append('c', 'd');
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expect(mutated.toString()).toEqual('a=b&a=c');
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expect(mutated2.toString()).toEqual('a=b&a=c&c=d');
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});
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});
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describe('read operations', () => {
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it('should give null if parameter is not set', () => {
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const body = new HttpParams({fromString: 'a=b&c=d'});
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expect(body.get('e')).toBeNull();
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expect(body.getAll('e')).toBeNull();
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});
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it('should give an accurate list of keys', () => {
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const body = new HttpParams({fromString: 'a=1&b=2&c=3&d=4'});
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expect(body.keys()).toEqual(['a', 'b', 'c', 'd']);
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});
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});
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describe('toString', () => {
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it('should stringify string params', () => {
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const body = new HttpParams({fromObject: {a: '', b: '2', c: '3'}});
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expect(body.toString()).toBe('a=&b=2&c=3');
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});
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it('should stringify array params', () => {
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const body = new HttpParams({fromObject: {a: '', b: ['21', '22'], c: '3'}});
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expect(body.toString()).toBe('a=&b=21&b=22&c=3');
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});
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it('should stringify empty array params', () => {
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const body = new HttpParams({fromObject: {a: '', b: [], c: '3'}});
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expect(body.toString()).toBe('a=&c=3');
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});
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});
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});
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}
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