angular-cn/modules/@angular/http/test/backends/mock_backend_spec.ts

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/**
* @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 {ReflectiveInjector} from '@angular/core';
import {AsyncTestCompleter, beforeEach, describe, inject, it, xit} from '@angular/core/testing/testing_internal';
import {expect} from '@angular/platform-browser/testing/matchers';
import {ReplaySubject} from 'rxjs/ReplaySubject';
import {BaseRequestOptions, RequestOptions} from '../../src/base_request_options';
import {BaseResponseOptions, ResponseOptions} from '../../src/base_response_options';
import {Request} from '../../src/static_request';
import {Response} from '../../src/static_response';
import {MockBackend, MockConnection} from '../../testing/mock_backend';
export function main() {
describe('MockBackend', () => {
let backend: MockBackend;
let sampleRequest1: Request;
let sampleResponse1: Response;
let sampleRequest2: Request;
let sampleResponse2: Response;
beforeEach(() => {
const injector = ReflectiveInjector.resolveAndCreate(
[{provide: ResponseOptions, useClass: BaseResponseOptions}, MockBackend]);
backend = injector.get(MockBackend);
const base = new BaseRequestOptions();
sampleRequest1 = new Request(base.merge(new RequestOptions({url: 'https://google.com'})));
sampleResponse1 = new Response(new ResponseOptions({body: 'response1'}));
sampleRequest2 = new Request(base.merge(new RequestOptions({url: 'https://google.com'})));
sampleResponse2 = new Response(new ResponseOptions({body: 'response2'}));
});
it('should create a new MockBackend', () => { expect(backend).toBeAnInstanceOf(MockBackend); });
it('should create a new MockConnection', () => {
expect(backend.createConnection(sampleRequest1)).toBeAnInstanceOf(MockConnection);
});
it('should create a new connection and allow subscription', () => {
const connection: MockConnection = backend.createConnection(sampleRequest1);
connection.response.subscribe(() => {});
});
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it('should allow responding after subscription',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const connection: MockConnection = backend.createConnection(sampleRequest1);
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connection.response.subscribe(() => { async.done(); });
connection.mockRespond(sampleResponse1);
}));
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it('should allow subscribing after responding',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const connection: MockConnection = backend.createConnection(sampleRequest1);
connection.mockRespond(sampleResponse1);
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connection.response.subscribe(() => { async.done(); });
}));
it('should allow responding after subscription with an error',
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inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const connection: MockConnection = backend.createConnection(sampleRequest1);
connection.response.subscribe(null, () => { async.done(); });
connection.mockError(new Error('nope'));
}));
it('should not throw when there are no unresolved requests',
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inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const connection: MockConnection = backend.createConnection(sampleRequest1);
connection.response.subscribe(() => { async.done(); });
connection.mockRespond(sampleResponse1);
backend.verifyNoPendingRequests();
}));
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xit('should throw when there are unresolved requests',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const connection: MockConnection = backend.createConnection(sampleRequest1);
connection.response.subscribe(() => { async.done(); });
backend.verifyNoPendingRequests();
}));
it('should work when requests are resolved out of order',
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inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const connection1: MockConnection = backend.createConnection(sampleRequest1);
const connection2: MockConnection = backend.createConnection(sampleRequest1);
connection1.response.subscribe(() => { async.done(); });
connection2.response.subscribe(() => {});
connection2.mockRespond(sampleResponse1);
connection1.mockRespond(sampleResponse1);
backend.verifyNoPendingRequests();
}));
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xit('should allow double subscribing',
inject([AsyncTestCompleter], (async: AsyncTestCompleter) => {
const responses: Response[] = [sampleResponse1, sampleResponse2];
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backend.connections.subscribe((c: MockConnection) => c.mockRespond(responses.shift()));
const responseObservable: ReplaySubject<Response> =
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backend.createConnection(sampleRequest1).response;
responseObservable.subscribe(res => expect(res.text()).toBe('response1'));
responseObservable.subscribe(
res => expect(res.text()).toBe('response2'), null, async.done);
}));
// TODO(robwormald): readyStates are leaving?
it('should allow resolution of requests manually', () => {
const connection1: MockConnection = backend.createConnection(sampleRequest1);
const connection2: MockConnection = backend.createConnection(sampleRequest1);
connection1.response.subscribe(() => {});
connection2.response.subscribe(() => {});
backend.resolveAllConnections();
backend.verifyNoPendingRequests();
});
});
}