Update tests

Author: reloni

RxHttpClientTests/Fake.swift

@@ -30,9 +30,9 @@ class FakeDataTask : NSObject, URLSessionDataTaskType {
 
 	open func cancel() {
 		if !isCancelled {
+            state = .suspended
+            isCancelled = true
 			cancelClosure?(self)
-			state = .suspended
-			isCancelled = true
 		}
 	}
 }

RxHttpClientTests/HttpClientBasicTests.swift

@@ -26,6 +26,7 @@ class HttpClientBasicTests: XCTestCase {
 	func testTerminateRequest() {
 		let fakeSession = FakeSession()
 		let cancelExpectation = expectation(description: "Should cancel task")
+        cancelExpectation.assertForOverFulfill = false
 		let resumeExpectation = expectation(description: "Should start task")
 		fakeSession.task = FakeDataTask(resumeClosure: { _ in resumeExpectation.fulfill() }, cancelClosure: { _ in cancelExpectation.fulfill() })
 		let client = HttpClient(session: fakeSession)