public void CalculateMatrix_StretchMode_UniformToFill()
{
var panelBounds = new Rect(0, 0, 300, 200);
var elementBounds = new Rect(0, 0, 100, 100);
var target = ZoomHelper.CalculateMatrix(panelBounds.Width, panelBounds.Height, elementBounds.Width, elementBounds.Height, StretchMode.UniformToFill);
Assert.Equal(3.0, target.M11);
Assert.Equal(0.0, target.M12);
Assert.Equal(0.0, target.M21);
Assert.Equal(3.0, target.M22);
Assert.Equal(-100.0, target.M31);
Assert.Equal(-100.0, target.M32);
}