public void GetVacantCoordinatesTest()
{
List <Vector2> expectedPoints;
BlockGrid grid = VacantCoordsBlockGridInitialize(out expectedPoints);
//test that the 3 shapes exist on grid
List <Vector2> points = grid.GetVacantCoordinates();
foreach (Vector2 p in expectedPoints)
{
//check if p in expected points
if (!points.Contains(p))
{
Assert.Fail("Block at point: {0}, {1} not found on grid", p.X, p.Y);
}
}
}