         waitForExpectations(timeout: 2.0, handler: nil)
     }
 
-    func testCallbackFromUnmatchedURL() throws {
+    func testCallbackFromUnmatchedURL() {
         let dataTaskExpectation = expectation(description: #function)
 
         let url = URL(string: "http://api.test3.com")!


    // MARK: - Testing the asynchronous callbacks

    func testCallbackOnDefaultQueue() throws {
        let dataTaskExpectation = expectation(description: #function)

        let t = VCR(play: multipleTracks)

        waitForExpectations(timeout: 2.0, handler: nil)
    }

    func testDelegateOnMainQueue() {
        let dataTaskExpectation = expectation(description: #function)

        let delegate = ExpectResponseFromDelegate(on: .main, fulfill: dataTaskExpectation)
