public void AddBattleShip_AddBattleshipOnOccupiedSpaceLineReversed_ShouldThrowException()
{
Assert.ThrowsException <Exception>(() =>
{
var board = new BattleshipBoard(3);
board.AddBattleShip(0, 0, 0, 2);
board.AddBattleShip(2, 1, 0, 1);
}, "Can not add a battleship from (2, 1) to (0, 1) because the space is occupied.");
}
public void HasLostTheGame_AllShipsAreStillIntact_GameIsNotLost()
{
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(false, board.HasLostTheGame());
}
public void TryAttack_SuccessfullyAttackingAShip_ShouldThrowException()
{
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(BattleshipBoard.AttackResult.Hit, board.TryAttack(0, 1)); // Ship 1 is down
Assert.AreEqual(BattleshipBoard.AttackResult.Miss, board.TryAttack(0, 1)); // Attacking same location is a miss
Assert.AreEqual(BattleshipBoard.AttackResult.Miss, board.TryAttack(0, 0)); // Attacking any part of Ship 1 again will result in a miss
Assert.AreEqual(BattleshipBoard.AttackResult.Miss, board.TryAttack(2, 2)); // Attacking at empty location will produce a miss
}
public void HasLostTheGame_AllShipsAreDestroyed_GameIsLost()
{
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(BattleshipBoard.AttackResult.Hit, board.TryAttack(0, 1)); // Ship 1 is down
Assert.AreEqual(BattleshipBoard.AttackResult.Hit, board.TryAttack(1, 0)); // Ship 2 is down
Assert.AreEqual(BattleshipBoard.AttackResult.Hit, board.TryAttack(2, 1)); // Ship 3 is down
Assert.AreEqual(true, board.HasLostTheGame()); // At this point, all battleships should be destroyed
}
public void HasLostTheGame_NotAllShipsAreDestroyed_GameIsNotLost()
{
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(BattleshipBoard.AttackResult.Hit, board.TryAttack(0, 1)); // Ship 1 is down
Assert.AreEqual(BattleshipBoard.AttackResult.Miss, board.TryAttack(0, 1)); // Attacking same location is a miss
Assert.AreEqual(BattleshipBoard.AttackResult.Miss, board.TryAttack(0, 0)); // Attacking any part of Ship 1 again will result in a miss
Assert.AreEqual(BattleshipBoard.AttackResult.Miss, board.TryAttack(2, 2)); // Attacking at empty location will produce a miss
Assert.AreEqual(BattleshipBoard.AttackResult.Hit, board.TryAttack(1, 0)); // Attack ship 2
Assert.AreEqual(false, board.HasLostTheGame()); // At this point, battleship 3 are still alive
}
public void AddBattleShip_AddBattleshipWithDiagonalPosition_ShouldThrowException()
{
Assert.ThrowsException <Exception>(() =>
{
var board = new BattleshipBoard(3);
board.AddBattleShip(0, 0, 2, 2);
}, "The position of the battleship needs to be at straight line position.");
}
public void AddBattleShip_AddBattleshipOutsideBoard_ShouldThrowException()
{
Assert.ThrowsException <Exception>(() =>
{
var board = new BattleshipBoard(3);
board.AddBattleShip(1, 1, 1, 5);
}, "Point (1, 5) is outside board.");
}
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()
);
}
