public void DemoTest_InputGrid5_3_Robot0_3_W_LLFFFLFLFL_ScentAt3_3_N_Expected2_3_S_NotLost()
{
// Arrange
var grid = new MarsGrid(5, 3);
// create scent
var robot = new MarsRobot(3, 2, RobotDirection.North);
var instructions = Parsers.ParseInstructions("FRRFLLFFRRFLL").ToArray();
robot.PerformInstructions(grid, instructions);
var robot2 = new MarsRobot(0, 3, RobotDirection.West);
var instructions2 = Parsers.ParseInstructions("LLFFFLFLFL").ToArray();
// Act
var result = robot2.PerformInstructions(grid, instructions2);
// Assert
Assert.Multiple(() =>
{
Assert.AreEqual((2, 3), (result.endX, result.endY));
Assert.AreEqual(RobotDirection.South, result.direction);
Assert.IsFalse(result.lost);
});
}
static void Main(string[] args)
{
try
{
Console.WriteLine("Waiting for input.");
var(rightLimit, topLimit) = ParseGridSize();
var grid = new MarsGrid(rightLimit, topLimit);
while (true)
{
(int startX, int startY, RobotDirection direction) = ParseRobotPosition();
var robot = new MarsRobot(startX, startY, direction);
var instructions = ParseInstructions();
(int endX, int endY, RobotDirection endDirection, bool lost) = robot.PerformInstructions(grid, instructions);
var lostText = lost ? "LOST" : "";
Console.WriteLine($"{endX} {endY} {endDirection.ToString()[0]} {lostText}");
}
}
catch (ArgumentException ex)
{
Console.WriteLine("Bad input: " + ex.Message);
}
catch (Exception ex)
{
Console.WriteLine("Unexpected error: " + ex.Message);
}
}
public void LostTest_InputGrid2_2_Robot2_2_N_Perform_F_Expected2_2_N_Lost()
{
// Arrange
var grid = new MarsGrid(2, 2);
var robot = new MarsRobot(2, 2, RobotDirection.North);
var instructions = new RobotInstruction[] { RobotInstruction.Forward };
// Act
var result = robot.PerformInstructions(grid, instructions);
// Assert
Assert.Multiple(() =>
{
Assert.AreEqual((2, 2), (result.endX, result.endY));
Assert.AreEqual(RobotDirection.North, result.direction);
Assert.IsTrue(result.lost);
});
}
public void NotLostTest_InputGrid2_2_Robot1_0_W_Perform_F_Expected0_0_W_NotLost()
{
// Arrange
var grid = new MarsGrid(2, 2);
var robot = new MarsRobot(1, 0, RobotDirection.West);
var instructions = new RobotInstruction[] { RobotInstruction.Forward };
// Act
var result = robot.PerformInstructions(grid, instructions);
// Assert
Assert.Multiple(() =>
{
Assert.AreEqual((0, 0), (result.endX, result.endY));
Assert.AreEqual(RobotDirection.West, result.direction);
Assert.IsFalse(result.lost);
});
}
public void LapOfHonorTest_InputGrid2_2_Robot0_0_N_Perform_FFRFFRFFRFFRRFFLFFLFFLFF_Expected0_0_S_NotLost()
{
// Arrange
var grid = new MarsGrid(2, 2);
var robot = new MarsRobot(0, 0, RobotDirection.North);
var instructions = Parsers.ParseInstructions("FFRFFRFFRFFRRFFLFFLFFLFF").ToArray();
// Act
var result = robot.PerformInstructions(grid, instructions);
// Assert
Assert.Multiple(() =>
{
Assert.AreEqual((0, 0), (result.endX, result.endY));
Assert.AreEqual(RobotDirection.South, result.direction);
Assert.IsFalse(result.lost);
});
}
public void DemoTest_InputGrid5_3_Robot3_2_N_FRRFLLFFRRFLL_Expected3_3_N_Lost()
{
// Arrange
var grid = new MarsGrid(5, 3);
var robot = new MarsRobot(3, 2, RobotDirection.North);
var instructions = Parsers.ParseInstructions("FRRFLLFFRRFLL").ToArray();
// Act
var result = robot.PerformInstructions(grid, instructions);
// Assert
Assert.Multiple(() =>
{
Assert.AreEqual((3, 3), (result.endX, result.endY));
Assert.AreEqual(RobotDirection.North, result.direction);
Assert.IsTrue(result.lost);
});
}
public void DemoTest_InputGrid5_3_Robot1_1_E_RFRFRFRF_Expected1_1_E_NotLost()
{
// Arrange
var grid = new MarsGrid(5, 3);
var robot = new MarsRobot(1, 1, RobotDirection.East);
var instructions = Parsers.ParseInstructions("RFRFRFRF").ToArray();
// Act
var result = robot.PerformInstructions(grid, instructions);
// Assert
Assert.Multiple(() =>
{
Assert.AreEqual((1, 1), (result.endX, result.endY));
Assert.AreEqual(RobotDirection.East, result.direction);
Assert.IsFalse(result.lost);
});
}
public void ScentTest_InputFirstRobotLostSecondRepeatsRouteButHasDifferentLastDirection_ExpectedBothLost()
{
// Arrange
var grid = new MarsGrid(2, 2);
var robot = new MarsRobot(2, 2, RobotDirection.North);
var robot2 = new MarsRobot(2, 2, RobotDirection.North);
var instructions = new RobotInstruction[] { RobotInstruction.Forward };
var instructions2 = new RobotInstruction[] { RobotInstruction.TurnRight, RobotInstruction.Forward };
// Act
var result1 = robot.PerformInstructions(grid, instructions);
var result2 = robot2.PerformInstructions(grid, instructions2);
// Assert
Assert.Multiple(() =>
{
Assert.AreEqual((2, 2), (result1.endX, result1.endY));
Assert.AreEqual((2, 2), (result2.endX, result2.endY));
Assert.IsTrue(result1.lost);
Assert.IsTrue(result2.lost);
});
}
