public void Revert_RevertsSpecifiedDiagonal()
{
var puzzle = new Puzzle(new int?[, ] {
{ 1, null, null, 4 },
{ null, null, 3, 2 },
{ 2, null, null, null },
{ null, null, null, null }
});
var rule = new DiagonalUniquenessRule(puzzle, _GetAllPossibleValues(puzzle.Size));
BitVector[,] initialPossibles = _GetPossibleValues(puzzle.Size, rule);
var updatedCoordTracker = new CoordinateTracker(puzzle.Size);
var coord = new Coordinate(2, 2);
int val = 4;
rule.Update(in coord, val, updatedCoordTracker);
var revertedCoordTracker = new CoordinateTracker(puzzle.Size);
rule.Revert(coord, val, revertedCoordTracker);
Assert.Equal(
revertedCoordTracker.GetTrackedCoords().ToArray(),
updatedCoordTracker.GetTrackedCoords().ToArray());
for (int row = 0; row < puzzle.Size; row++)
{
for (int col = 0; col < puzzle.Size; col++)
{
Assert.Equal(
initialPossibles[row, col],
rule.GetPossibleValues(new Coordinate(row, col)));
}
}
}
public void Revert_OnNonDiagonal_DoesNothing()
{
var puzzle = new Puzzle(new int?[, ] {
{ 1, null, null, 4 },
{ null, null, 3, 2 },
{ 2, null, null, null },
{ null, null, null, null }
});
var rule = new DiagonalUniquenessRule(puzzle, _GetAllPossibleValues(puzzle.Size));
BitVector[,] previousPossibles = _GetPossibleValues(puzzle.Size, rule);
var coordTracker = new CoordinateTracker(puzzle.Size);
var coord = new Coordinate(0, 1);
int val = 2;
rule.Update(in coord, val, new CoordinateTracker(puzzle.Size));
rule.Revert(coord, val, coordTracker);
Assert.Equal(0, coordTracker.NumTracked);
for (int row = 0; row < puzzle.Size; row++)
{
for (int col = 0; col < puzzle.Size; col++)
{
Assert.Equal(
previousPossibles[row, col],
rule.GetPossibleValues(new Coordinate(row, col)));
}
}
}
public void Revert_WithoutAffectedCoordsList_RevertsSpecifiedDiagonal()
{
var puzzle = new PuzzleWithPossibleValues(new int?[][] {
new int?[] { 1, null, null, 4 },
new int?[] { null, null, 3, 2 },
new int?[] { 2, null, null, null },
new int?[] { null, null, null, null }
});
var rule = new DiagonalUniquenessRule();
Assert.True(rule.TryInit(puzzle, puzzle.UniquePossibleValues));
BitVector[,] initialPossibles = _GetPossibleValues(puzzle.Size, rule);
var coord = new Coordinate(2, 1);
int val = 1;
rule.Update(in coord, val, new CoordinateTracker(puzzle.Size));
rule.Revert(coord, val);
for (int row = 0; row < puzzle.Size; row++)
{
for (int col = 0; col < puzzle.Size; col++)
{
Assert.Equal(
initialPossibles[row, col],
rule.GetPossibleValues(new Coordinate(row, col)));
}
}
}