public void ShouldNotAllowIfXIsOutOfCanvas()
{
string[,] canvas = new string[5, 5];
Rectangle rectangle = new Rectangle(6, 3, 6, 4);
Assert.IsFalse(rectangle.IsValid(canvas));
}
public void ShouldNotAllowIfYIsOutOfCanvas()
{
var canvas = new string[5, 5];
Rectangle rectangle = new Rectangle(1, 8, 1, 4);
Assert.IsFalse(rectangle.IsValid(canvas));
}
public void ShouldDrawARectangle()
{
var canvas = new string[5, 5];
Rectangle rectangle = new Rectangle(1, 1, 3, 3);
Assert.IsTrue(rectangle.IsValid(canvas));
var drawnCanvas = rectangle.DrawToCanvas(canvas);
Assert.IsNotNull(drawnCanvas);
Assert.AreEqual(null, drawnCanvas.GetValue(0, 0));
Assert.AreEqual("x", drawnCanvas.GetValue(1, 1));
Assert.AreEqual("x", drawnCanvas.GetValue(1, 2));
Assert.AreEqual("x", drawnCanvas.GetValue(1, 3));
Assert.AreEqual(null, drawnCanvas.GetValue(1, 4));
Assert.AreEqual(null, drawnCanvas.GetValue(2, 0));
Assert.AreEqual("x", drawnCanvas.GetValue(2, 1));
Assert.AreEqual(null, drawnCanvas.GetValue(2, 2));
Assert.AreEqual("x", drawnCanvas.GetValue(2, 3));
Assert.AreEqual(null, drawnCanvas.GetValue(2, 4));
Assert.AreEqual(null, drawnCanvas.GetValue(3, 0));
Assert.AreEqual("x", drawnCanvas.GetValue(3, 1));
Assert.AreEqual("x", drawnCanvas.GetValue(3, 2));
Assert.AreEqual("x", drawnCanvas.GetValue(3, 3));
Assert.AreEqual(null, drawnCanvas.GetValue(3, 4));
}