public void GroupOfUnitsShouldExecuteCommand()
{
var map = new Map(5, 5);
var collection = new UnitCollection()
{
new Units.Tractor(map, Orientation.North, new System.Drawing.Point(0, 0)),
new Stoun(map, new System.Drawing.Point(1, 0)),
new Wind(map)
};
collection.ExecuteCommand(new MoveForwardCommand());
Assert.AreEqual(1, (collection.ElementAt(0) as Units.Tractor).PositionY);
Assert.AreEqual(0, (collection.ElementAt(1) as Units.Stoun).PositionY);
collection.ExecuteCommand(new TurnClockwiseCommand());
Assert.AreEqual(Orientation.East, (collection.ElementAt(0) as Units.Tractor).Orientation);
Assert.AreEqual(Orientation.East, (collection.ElementAt(2) as Units.Wind).Orientation);
}