public void Skew_Tests()
{
var point = new Point(2, 3, 4);
(Matrix4X4.CreateSkew(1, 0, 0, 0, 0, 0) * point)
.ShouldBe(new Point(5, 3, 4));
(Matrix4X4.CreateSkew(0, 1, 0, 0, 0, 0) * point)
.ShouldBe(new Point(6, 3, 4));
(Matrix4X4.CreateSkew(0, 0, 1, 0, 0, 0) * point)
.ShouldBe(new Point(2, 5, 4));
(Matrix4X4.CreateSkew(0, 0, 0, 1, 0, 0) * point)
.ShouldBe(new Point(2, 7, 4));
(Matrix4X4.CreateSkew(0, 0, 0, 0, 1, 0) * point)
.ShouldBe(new Point(2, 3, 6));
(Matrix4X4.CreateSkew(0, 0, 0, 0, 0, 1) * point)
.ShouldBe(new Point(2, 3, 7));
}