145 lines
5.0 KiB
TypeScript
145 lines
5.0 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 {HttpHeaders} from '../src/headers';
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{
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describe('HttpHeaders', () => {
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describe('initialization', () => {
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it('should conform to spec', () => {
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const httpHeaders = {
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'Content-Type': 'image/jpeg',
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'Accept-Charset': 'utf-8',
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'X-My-Custom-Header': 'Zeke are cool',
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};
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const secondHeaders = new HttpHeaders(httpHeaders);
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expect(secondHeaders.get('Content-Type')).toEqual('image/jpeg');
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});
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it('should merge values in provided dictionary', () => {
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const headers = new HttpHeaders({'foo': 'bar'});
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expect(headers.get('foo')).toEqual('bar');
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expect(headers.getAll('foo')).toEqual(['bar']);
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});
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it('should lazily append values', () => {
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const src = new HttpHeaders();
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const a = src.append('foo', 'a');
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const b = a.append('foo', 'b');
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const c = b.append('foo', 'c');
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expect(src.getAll('foo')).toBeNull();
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expect(a.getAll('foo')).toEqual(['a']);
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expect(b.getAll('foo')).toEqual(['a', 'b']);
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expect(c.getAll('foo')).toEqual(['a', 'b', 'c']);
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});
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it('should keep the last value when initialized from an object', () => {
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const headers = new HttpHeaders({
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'foo': 'first',
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'fOo': 'second',
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});
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expect(headers.getAll('foo')).toEqual(['second']);
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});
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});
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describe('.set()', () => {
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it('should clear all values and re-set for the provided key', () => {
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const headers = new HttpHeaders({'foo': 'bar'});
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expect(headers.get('foo')).toEqual('bar');
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const second = headers.set('foo', 'baz');
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expect(second.get('foo')).toEqual('baz');
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const third = headers.set('fOO', 'bat');
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expect(third.get('foo')).toEqual('bat');
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});
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it('should preserve the case of the first call', () => {
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const headers = new HttpHeaders();
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const second = headers.set('fOo', 'baz');
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const third = second.set('foo', 'bat');
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expect(third.keys()).toEqual(['fOo']);
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});
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});
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describe('.get()', () => {
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it('should be case insensitive', () => {
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const headers = new HttpHeaders({'foo': 'baz'});
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expect(headers.get('foo')).toEqual('baz');
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expect(headers.get('FOO')).toEqual('baz');
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});
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it('should return null if the header is not present', () => {
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const headers = new HttpHeaders({bar: []});
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expect(headers.get('bar')).toEqual(null);
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expect(headers.get('foo')).toEqual(null);
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});
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});
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describe('.getAll()', () => {
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it('should be case insensitive', () => {
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const headers = new HttpHeaders({foo: ['bar', 'baz']});
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expect(headers.getAll('foo')).toEqual(['bar', 'baz']);
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expect(headers.getAll('FOO')).toEqual(['bar', 'baz']);
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});
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it('should return null if the header is not present', () => {
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const headers = new HttpHeaders();
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expect(headers.getAll('foo')).toEqual(null);
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});
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});
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describe('.delete', () => {
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it('should be case insensitive', () => {
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const headers = new HttpHeaders({'foo': 'baz'});
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expect(headers.has('foo')).toEqual(true);
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const second = headers.delete('foo');
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expect(second.has('foo')).toEqual(false);
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const third = second.set('foo', 'baz');
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expect(third.has('foo')).toEqual(true);
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const fourth = third.delete('FOO');
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expect(fourth.has('foo')).toEqual(false);
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});
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});
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describe('.append', () => {
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it('should append a value to the list', () => {
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const headers = new HttpHeaders();
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const second = headers.append('foo', 'bar');
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const third = second.append('foo', 'baz');
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expect(third.get('foo')).toEqual('bar');
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expect(third.getAll('foo')).toEqual(['bar', 'baz']);
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});
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it('should preserve the case of the first call', () => {
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const headers = new HttpHeaders();
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const second = headers.append('FOO', 'bar');
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const third = second.append('foo', 'baz');
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expect(third.keys()).toEqual(['FOO']);
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});
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});
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describe('response header strings', () => {
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it('should be parsed by the constructor', () => {
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const response = `Date: Fri, 20 Nov 2015 01:45:26 GMT\n` +
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`Content-Type: application/json; charset=utf-8\n` +
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`Transfer-Encoding: chunked\n` +
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`Connection: keep-alive`;
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const headers = new HttpHeaders(response);
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expect(headers.get('Date')).toEqual('Fri, 20 Nov 2015 01:45:26 GMT');
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expect(headers.get('Content-Type')).toEqual('application/json; charset=utf-8');
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expect(headers.get('Transfer-Encoding')).toEqual('chunked');
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expect(headers.get('Connection')).toEqual('keep-alive');
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});
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});
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});
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}
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