public void GetStatsForAllSolutions_ReturnsExpectedNumSolutions(Puzzle puzzle, SolveStats expectedStats)
{
var solver = new PuzzleSolver <Puzzle>(
new List <IConstraint> {
new RowUniquenessConstraint(), new ColumnUniquenessConstraint(), new BoxUniquenessConstraint()
});
Assert.Equal(expectedStats.NumSolutionsFound, solver.GetStatsForAllSolutions(puzzle).NumSolutionsFound);
}
public void GetStatsForAllSolutions_WithoutHeuristics_ReturnsExpectedResults(Puzzle puzzle, SolveStats expectedStats)
{
// Skip heuristics so the stats are easy to fully define.
var possibleValues = new PossibleValues(puzzle);
var ruleKeeper = new StandardRuleKeeper(puzzle, possibleValues);
var solver = new PuzzleSolver(puzzle, possibleValues, ruleKeeper);
Assert.Equal(expectedStats, solver.GetStatsForAllSolutions());
}
public void GetStatsForAllSolutions_WithHeuristics_ReturnsExpectedNumSolutions(Puzzle puzzle, SolveStats expectedStats)
{
var possibleValues = new PossibleValues(puzzle);
var ruleKeeper = new StandardRuleKeeper(puzzle, possibleValues);
ISudokuRule rule = ruleKeeper.GetRules()[0];
var heuristics = new StandardHeuristic(
puzzle, possibleValues, (IMissingRowValuesTracker)rule,
(IMissingColumnValuesTracker)rule, (IMissingBoxValuesTracker)rule);
var solver = new PuzzleSolver(puzzle, possibleValues, ruleKeeper, heuristics);
Assert.Equal(expectedStats.NumSolutionsFound, solver.GetStatsForAllSolutions().NumSolutionsFound);
}
public void Generate_CreatesPuzzleWithUniqueSolution(int size, int numToSet)
{
var generator = new StandardPuzzleGenerator(size);
Puzzle puzzle = generator.Generate(numToSet, TimeSpan.FromSeconds(60));
Assert.Equal(size * size - numToSet, puzzle.NumEmptySquares);
var solver = new PuzzleSolver(puzzle);
SolveStats stats = solver.GetStatsForAllSolutions();
Assert.Equal(1, stats.NumSolutionsFound);
}
public void Generate_CreatesPuzzleWithUniqueSolution(int size, int numToSet)
{
var generator = new PuzzleGenerator <Puzzle>(
() => new Puzzle(size),
new List <IConstraint> {
new RowUniquenessConstraint(),
new ColumnUniquenessConstraint(),
new BoxUniquenessConstraint()
});
Puzzle puzzle = generator.Generate(numToSet, TimeSpan.FromSeconds(60));
Assert.Equal(size * size - numToSet, puzzle.NumEmptySquares);
var solver = new PuzzleSolver(puzzle);
SolveStats stats = solver.GetStatsForAllSolutions();
Assert.Equal(1, stats.NumSolutionsFound);
}