p.location-badge. exported from angular2/http defined in angular2/src/http/backends/mock_backend.ts (line 98) :markdown The http module provides services to perform http requests. To get started, see the Http class. .l-main-section h2 Annotations .l-sub-section h3.annotation Injectable pre.prettyprint code. @Injectable() .l-main-section h2 Members .l-sub-section h3 constructor pre.prettyprint code. constructor() :markdown .l-sub-section h3 connections :markdown EventEmitter of MockConnection instances that have been created by this backend. Can be subscribed to in order to respond to connections. #Example ``` import {MockBackend, Http, BaseRequestOptions} from 'angular2/http'; import {Injector} from 'angular2/core'; it('should get a response', () => { var connection; //this will be set when a new connection is emitted from the backend. var text; //this will be set from mock response var injector = Injector.resolveAndCreate([ MockBackend, bind(Http).toFactory(backend, options) { return new Http(backend, options); }, [MockBackend, BaseRequestOptions]]); var backend = injector.get(MockBackend); var http = injector.get(Http); backend.connections.toRx().subscribe(c => connection = c); http.request('something.json').toRx().subscribe(res => { text = res.text(); }); connection.mockRespond(new Response({body: 'Something'})); expect(text).toBe('Something'); }); ``` This property only exists in the mock implementation, not in real Backends. .l-sub-section h3 connectionsArray :markdown An array representation of `connections`. This array will be updated with each connection that is created by this backend. This property only exists in the mock implementation, not in real Backends. .l-sub-section h3 pendingConnections :markdown EventEmitter of MockConnection instances that haven't yet been resolved (i.e. with a `readyState` less than 4). Used internally to verify that no connections are pending via the `verifyNoPendingRequests` method. This property only exists in the mock implementation, not in real Backends. .l-sub-section h3 verifyNoPendingRequests pre.prettyprint code. verifyNoPendingRequests() :markdown 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. .l-sub-section h3 resolveAllConnections pre.prettyprint code. resolveAllConnections() :markdown 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. .l-sub-section h3 createConnection pre.prettyprint code. createConnection(req: Request) :markdown Creates a new 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.