     func testMACAddressNew() {
         let ipData: Data = Data([ 0x00, 0x50, 0xC2, 0x34, 0xF7, 0x11])
 
-        var decoder = Decoder()
+        var decoder = DecodeData()
 
         let macaddress = decoder.decodeMACAddress(ipData)
 

    func testUInt24New()  {
        let ipData: Data = Data([0xFF, 0xFF, 0xFF])

        var decoder = Decoder()

        let value = decoder.decodeUInt24(ipData)


    func testIPAddressNew()  {
        let ipData: Data = Data([ 0xAD, 0xA5, 0xEE, 0xB2])

        var decoder = DecodeData()

        let ipaddress = decoder.decodeIPAddress(ipData)

