public void BoardCannotBeSolved()
{
int[,] board = new int[, ]
{
{ 6, 0, 2, 5, 0, 0, 4, 9, 0 }, //first 0 in this row cannot be filled with any valid value (1-9), as all 1-9 exists in either row, col or 3x3 block
{ 5, 1, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 8, 7, 0, 0, 0, 0, 0, 2 },
{ 0, 0, 3, 0, 1, 0, 0, 8, 0 },
{ 9, 0, 0, 8, 0, 4, 0, 0, 5 },
{ 0, 5, 0, 0, 2, 0, 9, 0, 0 },
{ 0, 3, 0, 0, 0, 0, 1, 5, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 7, 4 },
{ 0, 0, 8, 2, 0, 0, 3, 0, 0 }
};
var response = new SudokuSolverService(new SudokuSolverCore()).Solve(new SudokuSolverRequest {
Board = board
});
Assert.AreEqual(response.Status, SudokuSolverResponseStatus.NotSolved);
}
public void BoardProvidedWithNegativeCellValue()
{
int[,] board = new int[, ]
{
{ 3, 0, 6, 5, 0, 8, 4, 0, 0 },
{ 5, 2, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 8, 7, 0, 0, 0, 0, -3, 1 }, //-ve cell value (-3)
{ 0, 0, 3, 0, 1, 0, 0, 8, 0 },
{ 9, 0, 0, 8, 6, 3, 0, 0, 5 },
{ 0, 5, 0, 0, 9, 0, 6, 0, 0 },
{ 1, 3, 0, 0, 0, 0, 2, 5, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 7, 4 },
{ 0, 0, 5, 2, 0, 6, 3, 0, 0 }
};
var response = new SudokuSolverService(new SudokuSolverCore()).Solve(new SudokuSolverRequest {
Board = board
});
Assert.AreEqual(response.Status, SudokuSolverResponseStatus.Error);
Assert.AreEqual(response.ErrorMessage, "Each cell must contain values between 0-9.");
}
public void BoardProvidedWithDuplicateBlockValue()
{
int[,] board = new int[, ]
{
{ 3, 0, 6, 5, 0, 8, 4, 0, 0 },
{ 5, 2, 0, 0, 0, 0, 0, 1, 0 }, //1 is duplicate in the 3x3 block
{ 0, 8, 7, 0, 0, 0, 0, 3, 1 },
{ 0, 0, 3, 0, 1, 0, 0, 8, 0 },
{ 9, 0, 0, 8, 6, 3, 0, 0, 5 },
{ 0, 5, 0, 0, 9, 0, 6, 0, 0 },
{ 1, 3, 0, 0, 0, 0, 2, 5, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 7, 4 },
{ 0, 0, 5, 2, 0, 6, 3, 0, 0 }
};
var response = new SudokuSolverService(new SudokuSolverCore()).Solve(new SudokuSolverRequest {
Board = board
});
Assert.AreEqual(response.Status, SudokuSolverResponseStatus.Error);
Assert.AreEqual(response.ErrorMessage, "Each provided input must be unique for the row, column and 3x3 block.");
}
public SudokuSolverController(SudokuSolverService sudokuSolverService)
{
this.sudokuSolverService = sudokuSolverService;
}
