self.performRequest("get", path: "/qwer/index.html", callback: { response in
                    XCTAssertNotNil(response)
                    XCTAssertEqual(response?.statusCode, HTTPStatusCode.partialContent)
                    XCTAssertEqual(response?.headers["Content-Range"]?.first, "bytes 0-10/\(self.indexHtmlCount)")
                    var data = Data()