public void AddBattleShip_AddBattleshipToBoardUntilFull_OK() { // We don't expect this code to throw exception var board = new BattleshipBoard(3); Assert.AreEqual(1, board.AddBattleShip(0, 0, 0, 2)); Assert.AreEqual(2, board.AddBattleShip(1, 0, 2, 0)); Assert.AreEqual(3, board.AddBattleShip(1, 1, 2, 1)); Assert.AreEqual(4, board.AddBattleShip(1, 2, 1, 2)); Assert.AreEqual(5, board.AddBattleShip(2, 2, 2, 2)); CollectionAssert.AreEqual( new int?[][] { new int?[] { 1, 1, 1 }, new int?[] { 2, 3, 4 }, new int?[] { 2, 3, 5 } }.SelectMany(x => x).ToArray(), board.GetBoardState().SelectMany(x => x).ToArray() ); }