public List<Cell> GetSolution()
{
int[,] arr = new int[9, 9];
foreach (Cell cell in _puzzle)
{
if (cell.X >= arr.GetLength(0) || cell.Y >= arr.GetLength(1) || cell.X < 0 || cell.Y < 0)
{
throw new IndexOutOfRangeException();
}
int v = 0;
if(int.TryParse(cell.Value, out v))
{
if (v < 0 || v > 9)
{
throw new ArgumentOutOfRangeException();
}
arr[cell.X, cell.Y] = v;
}
}
PuzzleSolver solver = new PuzzleSolver(arr);
return ArrayToCells(solver.GetSolution());
}
public void TEST_ConstructorThrowsDuplicateValueExceptionOnRow()
{
int[,] puzzle = new int[,]
{
{ 0, 7, 1, 0, 0, 0, 7, 0, 4 },
{ 5, 0, 0, 0, 7, 0, 0, 6, 0 },
{ 0, 6, 0, 1, 4, 0, 0, 0, 7 },
{ 0, 0, 0, 8, 3, 0, 0, 4, 5 },
{ 0, 3, 0, 0, 5, 0, 0, 7, 0 },
{ 4, 8, 0, 0, 1, 6, 0, 0, 0 },
{ 2, 0, 0, 0, 6, 3, 0, 1, 0 },
{ 0, 5, 0, 0, 8, 0, 0, 0, 6 },
{ 8, 0, 0, 0, 0, 0, 7, 2, 0 }
};
IPuzzleAnalyzer solver = new PuzzleSolver(puzzle);
}
public void TEST_Constructor()
{
IPuzzleAnalyzer solver = new PuzzleSolver(GetPuzzle());
Assert.IsNotNull(solver);
}
public void TEST_GetSolution_IsNullWhenNoValidSolution()
{
int[,] puzzle = new int[,]
{
{ 5, 1, 3, 0, 0, 4, 0, 0, 0, },
{ 0, 6, 0, 3, 0, 8, 1, 0, 0, },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, },
{ 0, 0, 0, 7, 0, 6, 0, 0, 0, },
{ 6, 5, 8, 0, 0, 0, 4, 3, 7, },
{ 0, 0, 0, 1, 0, 3, 0, 0, 0, },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, },
{ 0, 0, 6, 4, 0, 7, 0, 1, 0, },
{ 0, 0, 0, 8, 0, 0, 7, 4, 6, }
};
IPuzzleAnalyzer solver = new PuzzleSolver(puzzle);
int[,] solution = solver.GetSolution();
Assert.IsNull(solution);
}
public void TEST_GetSolution()
{
IPuzzleAnalyzer solver = new PuzzleSolver(GetPuzzle());
int[,] solution = solver.GetSolution();
Assert.IsNotNull(solution);
Assert.AreNotEqual(GetPuzzle(), solution);
Assert.Equals(solution, GetSolution());
}