Test.kt

enum class PICCPollInterval(val value: Byte) {
    I250ms(0b00000000),
    I500ms(0b00001000),
    I1000ms(0b00010000),
    I2500ms(0b00011000),;
    companion object {
        private val values = values()
        fun bitMaskToEnum(bitMask: Byte) =
            values.find {
                it.value == bitMask and 0b00011000
            }!!

    }
}

enum class AutomaticPPICPolling(override val position: Byte): Positional {
    AutomaticPolling(0),
    TurnOffFieldIfNoPICC(1),
    TurnOffFieldIfPPICInactive(2),
    EnforceISO14443AP4(7),;

    companion object {
        private val values = AutomaticPPICPolling.values()
        fun bitMaskToSet(bitMask: Byte): EnumSet<AutomaticPPICPolling> =
            values.filterTo(EnumSet.noneOf(AutomaticPPICPolling::class.java)) {
                val toBitMask = it.toBitMask()
                bitMask and toBitMask != 0.toByte()
            }
    }
}
interface Positional {
    abstract val position: Byte
    fun toBitMask(): Byte =  (1 shl position.toInt()).toByte()
}


data class PollingSettings(val polling: EnumSet<AutomaticPPICPolling>, val interval: PICCPollInterval) {
    fun toBitMask(): Byte =
        polling.toBitMask() or interval.value
    companion object {
        fun bitMaskToEnum(byte: Byte): PollingSettings {
            val interval = PICCPollInterval.bitMaskToEnum(byte)
            val polling = AutomaticPPICPolling.bitMaskToSet(byte)
            return PollingSettings(polling, interval)
        }
    }
        
        
class BluetoothSupportTest : DescribeSpec({

    describe("BluetoothSupport") {

forAll<PollingSettings> { setting ->
            PollingSettings.bitMaskToEnum(setting.toBitMask()) == setting
        }
}
})