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using Godosa.Core.Input;
using Xunit;
namespace Godosa.Core.Tests.Input;
public class MenuCursorTests
{
[Fact]
public void Move_WrapsAround()
{
var c = new MenuCursor();
c.Clamp(3);
c.Move(-1, 3);
Assert.Equal(2, c.Index);
c.Move(+1, 3);
Assert.Equal(0, c.Index);
c.Move(+1, 3);
Assert.Equal(1, c.Index);
}
[Fact]
public void Clamp_KeepsIndexInsideAShrinkingList_AndEmptyMeansNone()
{
var c = new MenuCursor();
c.Clamp(5);
c.Move(+1, 5);
c.Move(+1, 5);
c.Move(+1, 5);
c.Clamp(2);
Assert.Equal(1, c.Index);
c.Clamp(0);
Assert.Equal(-1, c.Index);
c.Move(+1, 0);
Assert.Equal(-1, c.Index);
c.Clamp(4);
Assert.Equal(0, c.Index);
}
}
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