angular-cn/modules/angular2/test/http/backends/xhr_backend_spec.ts

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import {
AsyncTestCompleter,
afterEach,
beforeEach,
ddescribe,
describe,
expect,
iit,
inject,
it,
xit,
SpyObject
} from 'angular2/test_lib';
import {ObservableWrapper} from 'angular2/src/facade/async';
import {BrowserXhr} from 'angular2/src/http/backends/browser_xhr';
import {XHRConnection, XHRBackend} from 'angular2/src/http/backends/xhr_backend';
import {bind, Injector} from 'angular2/di';
import {Request} from 'angular2/src/http/static_request';
import {Map} from 'angular2/src/facade/collection';
import {RequestOptions, BaseRequestOptions} from 'angular2/src/http/base_request_options';
import {BaseResponseOptions, ResponseOptions} from 'angular2/src/http/base_response_options';
import {ResponseTypes} from 'angular2/src/http/enums';
var abortSpy;
var sendSpy;
var openSpy;
var addEventListenerSpy;
var existingXHRs = [];
class MockBrowserXHR extends BrowserXhr {
abort: any;
send: any;
open: any;
response: any;
responseText: string;
callbacks: Map<string, Function>;
constructor() {
super();
var spy = new SpyObject();
this.abort = abortSpy = spy.spy('abort');
this.send = sendSpy = spy.spy('send');
this.open = openSpy = spy.spy('open');
this.callbacks = new Map();
}
addEventListener(type: string, cb: Function) { this.callbacks.set(type, cb); }
dispatchEvent(type: string) { this.callbacks.get(type)({}); }
build() {
var xhr = new MockBrowserXHR();
existingXHRs.push(xhr);
return xhr;
}
}
export function main() {
describe('XHRBackend', () => {
var backend;
var sampleRequest;
beforeEach(() => {
var injector = Injector.resolveAndCreate([
bind(ResponseOptions)
.toClass(BaseResponseOptions),
bind(BrowserXhr).toClass(MockBrowserXHR),
XHRBackend
]);
backend = injector.get(XHRBackend);
var base = new BaseRequestOptions();
sampleRequest = new Request(base.merge(new RequestOptions({url: 'https://google.com'})));
});
afterEach(() => { existingXHRs = []; });
it('should create a connection',
() => { expect(() => backend.createConnection(sampleRequest)).not.toThrow(); });
describe('XHRConnection', () => {
it('should use the injected BaseResponseOptions to create the response',
inject([AsyncTestCompleter], async => {
var connection = new XHRConnection(sampleRequest, new MockBrowserXHR(),
new ResponseOptions({type: ResponseTypes.Error}));
ObservableWrapper.subscribe(connection.response, res => {
expect(res.type).toBe(ResponseTypes.Error);
async.done();
});
existingXHRs[0].dispatchEvent('load');
}));
it('should call abort when disposed', () => {
var connection = new XHRConnection(sampleRequest, new MockBrowserXHR());
connection.dispose();
expect(abortSpy).toHaveBeenCalled();
});
it('should automatically call open with method and url', () => {
new XHRConnection(sampleRequest, new MockBrowserXHR());
expect(openSpy).toHaveBeenCalledWith('GET', sampleRequest.url);
});
it('should automatically call send on the backend with request body', () => {
var body = 'Some body to love';
var base = new BaseRequestOptions();
new XHRConnection(new Request(base.merge(new RequestOptions({body: body}))),
new MockBrowserXHR());
expect(sendSpy).toHaveBeenCalledWith(body);
});
});
});
}