angular-docs-cn/packages/common/http/testing/test/request_spec.ts

95 lines
2.7 KiB
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 {HttpClient} from '@angular/common/http';
import {HttpClientTestingBackend} from '@angular/common/http/testing/src/backend';
describe('HttpClient TestRequest', () => {
it('accepts a null body', () => {
const mock = new HttpClientTestingBackend();
const client = new HttpClient(mock);
let resp: any;
client.post('/some-url', {test: 'test'}).subscribe(body => {
resp = body;
});
const req = mock.expectOne('/some-url');
req.flush(null);
expect(resp).toBeNull();
});
it('throws if no request matches', () => {
const mock = new HttpClientTestingBackend();
const client = new HttpClient(mock);
let resp: any;
client.get('/some-other-url').subscribe(body => {
resp = body;
});
try {
// expect different URL
mock.expectOne('/some-url').flush(null);
fail();
} catch (error) {
expect(error.message)
.toBe(
'Expected one matching request for criteria "Match URL: /some-url", found none.' +
' Requests received are: GET /some-other-url.');
}
});
it('throws if no request matches the exact parameters', () => {
const mock = new HttpClientTestingBackend();
const client = new HttpClient(mock);
let resp: any;
const params = {query: 'hello'};
client.get('/some-url', {params}).subscribe(body => {
resp = body;
});
try {
// expect different query parameters
mock.expectOne('/some-url?query=world').flush(null);
fail();
} catch (error) {
expect(error.message)
.toBe(
'Expected one matching request for criteria "Match URL: /some-url?query=world", found none.' +
' Requests received are: GET /some-url?query=hello.');
}
});
it('throws if no request matches with several requests received', () => {
const mock = new HttpClientTestingBackend();
const client = new HttpClient(mock);
let resp: any;
client.get('/some-other-url?query=world').subscribe(body => {
resp = body;
});
client.post('/and-another-url', {}).subscribe(body => {
resp = body;
});
try {
// expect different URL
mock.expectOne('/some-url').flush(null);
fail();
} catch (error) {
expect(error.message)
.toBe(
'Expected one matching request for criteria "Match URL: /some-url", found none.' +
' Requests received are: GET /some-other-url?query=world, POST /and-another-url.');
}
});
});