public void RotateAroundOriginTest90()
{
var a = Vector2.UnitX;
var t = new Transformation2D();
t.RotateLocal(90f);
var expectedA = Vector2.UnitY;
Assert.AreEqual(expectedA, t.Transform(a));
}
public void ScaleAroundOriginTest()
{
var a = new Vector2(-3, 2);
var t = new Transformation2D();
t.ScaleLocal(2, -3);
var expectedA = new Vector2(-6, -6);
Assert.AreEqual(expectedA, t.Transform(a));
}