         //WHEN: Requesting a URL that should return an array
         MainAPIUtility.sharedUtility.getJSON(from: "fetchArray",
                                              headers: [:],
-                                             success: { (result: APIArray) in
+                                             success: { (_ result: APIArray) in
                                                 //THEN: the result data type is array as expected
                                                 expectation.fulfill()
         }, failure: { error in

        MainAPIUtility.sharedUtility.postJSON(to: "emptyResponse",
                                              headers: [:],
                                              params: fakeParams,
                                              success: { (result: NSNull) in
                                                //THEN: the result data type is null as expected
                                                expectation.fulfill()
        }, failure: { error in

        //WHEN: Requesting a URL that should return an array
        MainAPIUtility.sharedUtility.getJSON(from: "failArray",
                                             headers: [:],
                                             success: { (_ result: APIArray) in
                                                XCTFail("This should fail: mock data does not contain an array")
                                                expectation.fulfill()
        }, failure: { error in
