angular2
Version:
Angular 2 - a web framework for modern web apps
151 lines • 6.06 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
switch (arguments.length) {
case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
}
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { Injectable } from 'angular2/angular2';
import { Request } from '../static_request';
import { ReadyStates } from '../enums';
import { isPresent } from 'angular2/src/facade/lang';
import { BaseException } from 'angular2/src/facade/exceptions';
var Rx = require('@reactivex/rxjs/dist/cjs/Rx');
let { Subject, ReplaySubject } = Rx;
/**
*
* Mock Connection to represent a {@link Connection} for tests.
*
**/
export class MockConnection {
constructor(req) {
this.response = new ReplaySubject(1).take(1);
this.readyState = ReadyStates.Open;
this.request = req;
}
/**
* Sends a mock response to the connection. This response is the value that is emitted to the
* {@link EventEmitter} returned by {@link Http}.
*
* ### Example
*
* ```
* var connection;
* backend.connections.subscribe(c => connection = c);
* http.request('data.json').subscribe(res => console.log(res.text()));
* connection.mockRespond(new Response('fake response')); //logs 'fake response'
* ```
*
*/
mockRespond(res) {
if (this.readyState === ReadyStates.Done || this.readyState === ReadyStates.Cancelled) {
throw new BaseException('Connection has already been resolved');
}
this.readyState = ReadyStates.Done;
this.response.next(res);
this.response.complete();
}
/**
* Not yet implemented!
*
* Sends the provided {@link Response} to the `downloadObserver` of the `Request`
* associated with this connection.
*/
mockDownload(res) {
// this.request.downloadObserver.onNext(res);
// if (res.bytesLoaded === res.totalBytes) {
// this.request.downloadObserver.onCompleted();
// }
}
// TODO(jeffbcross): consider using Response type
/**
* Emits the provided error object as an error to the {@link Response} {@link EventEmitter}
* returned
* from {@link Http}.
*/
mockError(err) {
// Matches XHR semantics
this.readyState = ReadyStates.Done;
this.response.error(err);
}
}
/**
* A mock backend for testing the {@link Http} service.
*
* This class can be injected in tests, and should be used to override providers
* to other backends, such as {@link XHRBackend}.
*
* ### Example
*
* ```
* import {MockBackend, DefaultOptions, Http} from 'angular2/http';
* it('should get some data', inject([AsyncTestCompleter], (async) => {
* var connection;
* var injector = Injector.resolveAndCreate([
* MockBackend,
* provide(Http, {useFactory: (backend, defaultOptions) => {
* return new Http(backend, defaultOptions)
* }, deps: [MockBackend, DefaultOptions]})]);
* var http = injector.get(Http);
* var backend = injector.get(MockBackend);
* //Assign any newly-created connection to local variable
* backend.connections.subscribe(c => connection = c);
* http.request('data.json').subscribe((res) => {
* expect(res.text()).toBe('awesome');
* async.done();
* });
* connection.mockRespond(new Response('awesome'));
* }));
* ```
*
* This method only exists in the mock implementation, not in real Backends.
**/
export let MockBackend = class {
constructor() {
this.connectionsArray = [];
this.connections = new Subject();
this.connections.subscribe(connection => this.connectionsArray.push(connection));
this.pendingConnections = new Subject();
}
/**
* Checks all connections, and raises an exception if any connection has not received a response.
*
* This method only exists in the mock implementation, not in real Backends.
*/
verifyNoPendingRequests() {
let pending = 0;
this.pendingConnections.subscribe(c => pending++);
if (pending > 0)
throw new BaseException(`${pending} pending connections to be resolved`);
}
/**
* Can be used in conjunction with `verifyNoPendingRequests` to resolve any not-yet-resolve
* connections, if it's expected that there are connections that have not yet received a response.
*
* This method only exists in the mock implementation, not in real Backends.
*/
resolveAllConnections() { this.connections.subscribe(c => c.readyState = 4); }
/**
* Creates a new {@link MockConnection}. This is equivalent to calling `new
* MockConnection()`, except that it also will emit the new `Connection` to the `connections`
* emitter of this `MockBackend` instance. This method will usually only be used by tests
* against the framework itself, not by end-users.
*/
createConnection(req) {
if (!isPresent(req) || !(req instanceof Request)) {
throw new BaseException(`createConnection requires an instance of Request, got ${req}`);
}
let connection = new MockConnection(req);
this.connections.next(connection);
return connection;
}
};
MockBackend = __decorate([
Injectable(),
__metadata('design:paramtypes', [])
], MockBackend);
//# sourceMappingURL=mock_backend.js.map