namespace Nonemm.Keying.Tests;

public class WinkeyerStatusTests
{
    [Fact]
    public void SendingEndsWhenTheBusyFlagClears()
    {
        WinkeyerStatus status = new();

        Assert.False(status.Read(0xC4));
        Assert.True(status.IsSending);
        Assert.True(status.Read(0xC0));
        Assert.False(status.IsSending);
    }

    [Fact]
    public void AStatusByteThatRepeatsTheLastOneIsNotAnEnding()
    {
        WinkeyerStatus status = new();
        status.Read(0xC4);
        status.Read(0xC0);

        Assert.False(status.Read(0xC0));
    }

    [Fact]
    public void ClearingTheBusyFlagWithTheBreakInFlagSetStillEndsIt()
    {
        WinkeyerStatus status = new();
        status.Read(0xC4);

        Assert.True(status.Read(0xC2));
    }

    /// The speed pot and the characters the keyer echoes say nothing about the
    /// buffer.
    [Theory]
    [InlineData(0x80)]
    [InlineData(0xBF)]
    [InlineData((byte)'K')]
    public void OtherBytesAreNotStatus(byte value)
    {
        WinkeyerStatus status = new();
        status.Read(0xC4);

        Assert.False(status.Read(value));
        Assert.True(status.IsSending);
    }
}