public SudokuPuzzle GeneratePuzzle(IPuzzlePolicy policy)
{
var puzzle = new SudokuPuzzle();
FillGrid(puzzle.FullGrid);
puzzle.puzzleGrid = CopyGrid(puzzle.FullGrid);
CreatePuzzleGrid(puzzle, policy.MaxBlanks);
return(puzzle);
}
private static void GridIsGeneratedCorrectly(IPuzzlePolicy policy)
{
var validator = new GridValidator();
var solver = new SudokuSolver(validator);
var generator = new SudokuGenerator(validator, solver);
for (int i = 0; i < 5; i++)
{
var puzzle = generator.GeneratePuzzle(policy);
var fullGrid = puzzle.FullGrid;
Assert.IsTrue(validator.GridIsComplete(fullGrid));
Assert.IsTrue(validator.ValidRows(fullGrid));
Assert.IsTrue(validator.ValidColumns(fullGrid));
Assert.IsTrue(validator.ValidGroups(fullGrid));
var puzzleGrid = puzzle.puzzleGrid;
// Actual number of blanks can be less than specified in policy
// as we could not find a puzzle with on single solutions with MaxBlanks
Assert.IsTrue(validator.GetNumBlanks(puzzleGrid) <= policy.MaxBlanks);
}
}