gui-cs.Terminal.Gui/UnitTests/Types/PointTests.cs

namespace Terminal.Gui.TypeTests;

public class PointTests
{
    [Fact]
    public void Point_Equals ()
    {
        var point1 = new Point ();
        var point2 = new Point ();
        Assert.Equal (point1, point2);

        point1 = new Point (1, 2);
        point2 = new Point (1, 2);
        Assert.Equal (point1, point2);

        point1 = new Point (1, 2);
        point2 = new Point (0, 2);
        Assert.NotEqual (point1, point2);

        point1 = new Point (1, 2);
        point2 = new Point (0, 3);
        Assert.NotEqual (point1, point2);
    }

    [Fact]
    public void Point_New ()
    {
        var point = new Point ();
        Assert.True (point.IsEmpty);

        point = new Point (new Size ());
        Assert.True (point.IsEmpty);

        point = new Point (1, 2);
        Assert.False (point.IsEmpty);

        point = new Point (-1, -2);
        Assert.False (point.IsEmpty);
    }

    [Fact]
    public void Point_SetsValue ()
    {
        var point = new Point { X = 0, Y = 0 };
        Assert.True (point.IsEmpty);

        point = new Point { X = 1, Y = 2 };
        Assert.False (point.IsEmpty);

        point = new Point { X = -1, Y = -2 };
        Assert.False (point.IsEmpty);
    }

    [Fact]
    public void Point_Size ()
    {
        var point = new Point (1, 2);
        var size = (Size)point;
        Assert.False (size.IsEmpty);

        point = new Point (-1, 2);
        Action action = () => size = (Size)point;
        var ex = Assert.Throws<ArgumentException> (action);
        Assert.Equal ("Either Width and Height must be greater or equal to 0.", ex.Message);
    }
}