public void Matrix3x2CreateSkewYTest()
{
Matrix3x2 expected = new Matrix3x2(1, -0.414213562373095f, 0, 1, 0, 0);
Matrix3x2 actual = Matrix3x2.CreateSkew(0, -MathHelper.Pi / 8);
Assert.True(MathHelper.Equal(expected, actual));
expected = new Matrix3x2(1, 0.414213562373095f, 0, 1, 0, 0);
actual = Matrix3x2.CreateSkew(0, MathHelper.Pi / 8);
Assert.True(MathHelper.Equal(expected, actual));
Vector2 result = Vector2.Transform(new Vector2(0, 0), actual);
Assert.True(MathHelper.Equal(new Vector2(0, 0), result));
result = Vector2.Transform(new Vector2(1, 0), actual);
Assert.True(MathHelper.Equal(new Vector2(1, 0.414213568f), result));
result = Vector2.Transform(new Vector2(-1, 0), actual);
Assert.True(MathHelper.Equal(new Vector2(-1, -0.414213568f), result));
result = Vector2.Transform(new Vector2(10, 3), actual);
Assert.True(MathHelper.Equal(new Vector2(10, 7.14213568f), result));
}
