public void SetUp()
{
initialState = BattleshipGameState.Empty(gridSize);
initialState.Grid[0][0] = BattleshipGridCell.Ship;
initialState.Grid[0][1] = BattleshipGridCell.Ship;
initialState.Grid[0][2] = BattleshipGridCell.Ship;
state1 = BattleshipGameState.Empty(gridSize);
state1.Grid[0][0] = BattleshipGridCell.Hit;
state1.Grid[0][1] = BattleshipGridCell.Ship;
state1.Grid[0][2] = BattleshipGridCell.Ship;
state2 = BattleshipGameState.Empty(gridSize);
state2.Grid[0][0] = BattleshipGridCell.Hit;
state2.Grid[0][1] = BattleshipGridCell.Hit;
state2.Grid[0][2] = BattleshipGridCell.Ship;
state3 = BattleshipGameState.Empty(gridSize);
state3.Grid[0][0] = BattleshipGridCell.Hit;
state3.Grid[0][1] = BattleshipGridCell.Hit;
state3.Grid[0][2] = BattleshipGridCell.Hit;
_console = Substitute.For <IConsole>();
_stateBuilder = Substitute.For <IBattleshipStateBuilder>();
_stateBuilder.Build().Returns(initialState);
_gameShowService = Substitute.For <IShowGameState>();
_serviceUnderTests = new BattleshipGame(_console,
_stateBuilder,
_gameShowService);
}
public void Show_ShouldShowHitMissMarkers_GivenUsedGrid()
{
// arrange
var expectedFirstScreen =
" 1 2 3 4 5 6 7 8 9 10\r\n" +
"A * x |\r\n" +
"B |\r\n" +
"C |\r\n" +
"D |\r\n" +
"E |\r\n" +
"F |\r\n" +
"G |\r\n" +
"H |\r\n" +
"I |\r\n" +
"J |\r\n" +
" - - - - - - - - - - \r\n";
var grid = BattleshipGameState.Empty(10).Grid;
grid[0][0] = BattleshipGridCell.Hit;
grid[0][9] = BattleshipGridCell.Miss;
grid[0][8] = BattleshipGridCell.Ship;
var state = new BattleshipGameState {
Grid = grid
};
// act
_serviceUnderTests.Show(state);
// assert
Assert.AreEqual(expectedFirstScreen, _consoleOut);
}
public void Show_ShouldShowEmptyGrid_GivenEmptyGrid()
{
// arrange
var expectedFirstScreen =
" 1 2 3 4 5 6 7 8 9 10\r\n" +
"A |\r\n" +
"B |\r\n" +
"C |\r\n" +
"D |\r\n" +
"E |\r\n" +
"F |\r\n" +
"G |\r\n" +
"H |\r\n" +
"I |\r\n" +
"J |\r\n" +
" - - - - - - - - - - \r\n";
var emptyGrid = BattleshipGameState.Empty(10).Grid;
var empty = new BattleshipGameState {
Grid = emptyGrid
};
// act
_serviceUnderTests.Show(empty);
// assert
Assert.AreEqual(expectedFirstScreen, _consoleOut);
}
public static BattleshipGame GameFromPrevState(IContainer container, BattleshipGameState prevState)
{
return(new BattleshipGame(
container.Resolve <IConsole>(),
container.Resolve <IBattleshipStateBuilder>(),
container.Resolve <IShowGameState>(),
prevState));
}
public void GivenCellStateIn(string cellState, int line, int column)
{
// prepare state for test case
var state = BattleshipGameState.Empty(_configuration.GridSize);
state.Grid[line][column] = GetState(cellState);
// get tested class instance
_game = GameFromPrevState(_container, state);
}
public void IsGuessColliding_ReturnsTrue_WhenShipWouldExtendOverBorder(int x, int y, int length, bool isVertical, bool expected)
{
var grid = BattleshipGameState.Empty(gridSize).Grid;
var ship = new BattleShip(length, isVertical);
// act
var result = _servceUnderTest.IsNextShipColliding(grid, ship, new GridCoordinate(x, y));
// assert
Assert.AreEqual(expected, result);
}
public BattleshipGame(
IConsole console,
IBattleshipStateBuilder stateBuilder,
IShowGameState gameShowService,
BattleshipGameState gameState
)
{
_console = console;
_stateBuilder = stateBuilder;
_gameShowService = gameShowService;
_gameState = gameState;
}
public void Show(BattleshipGameState state)
{
_console.WriteLine($" {string.Join(' ', Enumerable.Range(1, _configuration.GridSize))}");
int i = 0;
foreach (var line in state.Grid)
{
var lineToDisplay = string.Join(' ', line.Select(l => _mapper.GetCellValueToDisplay(l)));
_console.WriteLine($"{_charService.GetLetter(i++)} {lineToDisplay} |");
}
_console.WriteLine($" {string.Join(' ', Enumerable.Range(0, _configuration.GridSize).Select(_ => "-")) } ");
}
public void Build_ShouldReturnEmptyBoard_WhenNoShipsConfigured()
{
// arrange
_config.Ships.Returns(new List <int>());
var expected = BattleshipGameState.Empty(gridSize);
// act
var result = _servceUnderTest.Build();
// assert
Assert.AreEqual(expected.Grid, result.Grid);
}
public void PlayRound_ShowsGame_GivenGuess()
{
// arrange
var guess = "A1";
var nextState = new BattleshipGameState();
_stateBuilder.Build(initialState, guess).Returns(nextState);
// act
_serviceUnderTests.PlayRound(guess);
// assert
_gameShowService.Received().Show(nextState);
}
public void GivenShipsInFolowingGridPoints(Table table)
{
// prepare state for test case
var state = BattleshipGameState.Empty(_configuration.GridSize);
foreach (var row in table.Rows)
{
var line = int.Parse(row["line"]) - 1;
var column = int.Parse(row["column"]) - 1;
state.Grid[line][column] = BattleshipGridCell.Ship;
}
// get tested class instance
_game = GameFromPrevState(_container, state);
}
public BattleshipGameState Build()
{
var result = BattleshipGameState.Empty(_configuration.GridSize);
foreach (var shipLength in _configuration.Ships.OrderByDescending(s => s))
{
var isVertical = _random.IsNextVertical();
var ship = new BattleShip(shipLength, isVertical);
var firstCell = GetShipStart(result.Grid, ship);
PlaceShipOnGrid(result.Grid, ship, firstCell);
}
return(result);
}
public void IsGuessColliding_ReturnsTrue_ForShipsCollision(int x, int y, bool isVertical, bool expected)
{
// arrange
var grid = BattleshipGameState.Empty(gridSize).Grid;
grid[1][2] = BattleshipGridCell.Ship; // place ship on grid
grid[2][2] = BattleshipGridCell.Ship;
var ship = new BattleShip(2, isVertical);
// act
var result = _servceUnderTest.IsNextShipColliding(grid, ship, new GridCoordinate(x, y));
// assert
Assert.AreEqual(expected, result);
}
public BattleshipGameState Build(BattleshipGameState prevState, string guess)
{
var guessCell = _guessReader.GetCordinates(guess);
// state shallow copy
// that it might be a problem with multiple threads but its easier to implement and has less overhead
var newState = new BattleshipGameState()
{
Grid = prevState.Grid
};
var newCellState = _mapper.NewCellState(newState.Grid[guessCell.Line][guessCell.Column]);
newState.Grid[guessCell.Line][guessCell.Column] = newCellState;
return(newState);
}
public void PlayRound(string guess)
{
try
{
_gameState = _stateBuilder.Build(_gameState, guess);
Show(_gameState);
}
catch (InvalidInputException)
{
_gameShowService.DisplayInputWarning();
}
catch (CellRepetitionException)
{
_gameShowService.DisplayRetryWarning();
}
}
public void Build_ShouldReturnMissMark_WhenShotMissed()
{
// arrange
var prev = BattleshipGameState.Empty(gridSize);
var guess = "B2";
var coord = new GridCoordinate(1, 1);
_guessService.GetCordinates(guess).Returns(coord);
var expected = BattleshipGameState.Empty(gridSize);
expected.Grid[1][1] = BattleshipGridCell.Miss;
// act
var result = _servceUnderTest.Build(prev, guess);
// assert
Assert.AreEqual(expected.Grid, result.Grid);
}
public void Build_ShouldReturnBoardWithSingleShip_WhenSingleShipInConfiguration(int x, int y)
{
// arrange
_config.Ships.Returns(new List <int> {
1
});
var coord = new GridCoordinate(x, y);
_randomService.NextCell().Returns(coord);
var expected = BattleshipGameState.Empty(gridSize).Grid;
expected[x][y] = BattleshipGridCell.Ship;
// act
var result = _servceUnderTest.Build();
// assert
Assert.AreEqual(expected, result.Grid);
}
public void GetShipStart_ShouldPreventCollisionsWithOtherShips_WhenPlacingNextShip()
{
// arrange
var grid = BattleshipGameState.Empty(gridSize).Grid;
var firstShipStart = new GridCoordinate(1, 2);
grid[firstShipStart.Line][firstShipStart.Column] = BattleshipGridCell.Ship; // place ship on grid
grid[firstShipStart.Line + 1][firstShipStart.Column] = BattleshipGridCell.Ship;
var nextShip = new BattleShip(2, true);
var expected = new GridCoordinate(2, 3);
_randomService.NextCell()
.Returns(firstShipStart, // we randomly got space that is
firstShipStart, // already used by other ships
expected); // until we got proper one
_detectCollisionService.IsNextShipColliding(grid, nextShip, firstShipStart).Returns(true);
_detectCollisionService.IsNextShipColliding(grid, nextShip, expected).Returns(false);
// act
var result = _servceUnderTest.GetShipStart(grid, nextShip);
// assert
Assert.AreEqual(expected, result);
}
public void Build_ShouldRotateShip_WhenItsSelectedRandomly(bool isVertical, int shipLength)
{
// arrange
int x = 1;
int y = 1;
_config.Ships.Returns(new List <int> {
shipLength
});
var coord = new GridCoordinate(x, y);
_randomService.NextCell().Returns(coord);
_randomService.IsNextVertical().Returns(isVertical);
var expected = BattleshipGameState.Empty(gridSize).Grid;
expected[x][y] = BattleshipGridCell.Ship;
expected[isVertical ? x + 1 : x][isVertical ? y : y + 1] = BattleshipGridCell.Ship;
// act
var result = _servceUnderTest.Build();
// assert
Assert.AreEqual(expected, result.Grid);
}
public void Build_ShouldPlaceAllShips_FromLongestToSmallestInConfiguration()
{
var grid = BattleshipGameState.Empty(gridSize).Grid;
var firstShipStart = new GridCoordinate(8, 4);
grid[firstShipStart.Line][firstShipStart.Column] = BattleshipGridCell.Ship; // 1st ship: 4 mast horizontal
grid[firstShipStart.Line][firstShipStart.Column + 1] = BattleshipGridCell.Ship;
grid[firstShipStart.Line][firstShipStart.Column + 2] = BattleshipGridCell.Ship;
grid[firstShipStart.Line][firstShipStart.Column + 3] = BattleshipGridCell.Ship;
var secondShipStart = new GridCoordinate(2, 3);
grid[secondShipStart.Line][secondShipStart.Column] = BattleshipGridCell.Ship; // 2nd ship: 3 mast vertical
grid[secondShipStart.Line + 1][secondShipStart.Column] = BattleshipGridCell.Ship;
grid[secondShipStart.Line + 2][secondShipStart.Column] = BattleshipGridCell.Ship;
var thirdShipStart = new GridCoordinate(1, 2);
grid[thirdShipStart.Line][thirdShipStart.Column] = BattleshipGridCell.Ship; // 1st ship: 2 mast vertical
grid[thirdShipStart.Line + 1][thirdShipStart.Column] = BattleshipGridCell.Ship;
var ships = new[] { 2, 3, 4 };
_config.Ships.Returns(ships);
var starts = new[] { firstShipStart, secondShipStart, thirdShipStart };
_randomService.NextCell().Returns(firstShipStart, secondShipStart, thirdShipStart);
_randomService.IsNextVertical().Returns(false, true, true);
_detectCollisionService.IsNextShipColliding(
Arg.Any <List <List <BattleshipGridCell> > >(),
Arg.Any <BattleShip>(),
Arg.Is <GridCoordinate>(i => !starts.Contains(i))
).Returns(true);
// act
var result = _servceUnderTest.Build();
// assert
Assert.AreEqual(grid, result.Grid);
}
private void Show(BattleshipGameState state)
{
_gameShowService.Show(state);
}
public void GivenIHavePreviousGameState()
{
_state = _stateBuilder.Build();
}
public void WhenIGenerateNewGameState()
{
_state = _stateBuilder.Build();
}
private bool IsFinished(BattleshipGameState gameState)
{
return(!gameState.Grid.Any(
line => line.Any(
cell => cell == BattleshipGridCell.Ship)));
}