         
         _ = timelineViewModel.requestProfileInformation()
             .subscribe(onNext: { user in
-                XCTAssertNotNil(user)
+                XCTAssertNil(user)
                 XCTAssertEqual(user.userID, self.userData.userID)
                 XCTAssertEqual(user.name, self.userData.name)
                 XCTAssertEqual(user.screenName, self.userData.screenName)

    }
    
    func testLoadUserProfileFailed() {
        stub(isHost(TwitterEndpoints().timeline.host)) { _ in
            let stubData = "Hello World!".dataUsingEncoding(NSUTF8StringEncoding)
            return OHHTTPStubsResponse(data: stubData!, statusCode:200, headers:nil)
        }
    }
}

    
    override func tearDown() {
        super.tearDown()
        OHHTTPStubs.removeAllStubs()
    }
    
    func testLoadUserProfileSuccessfully() {
