public void AmountOfPixelsTurnedOnTest()
{
Screen screen = new Screen(7, 3, PATH);
string instruction = "rect 3x2";
screen.ProcessLine(instruction);
instruction = "rotate column x=1 by 1";
screen.ProcessLine(instruction);
instruction = "rotate row y=0 by 4";
screen.ProcessLine(instruction);
instruction = "rotate column x=1 by 1";
screen.ProcessLine(instruction);
instruction = "rect 2x2";
screen.ProcessLine(instruction);
Assert.AreEqual(8, screen.AmountOfPixelsTurnedOn());
}