public void UpdateAndRevert_WithDuplicatePossibleValue()
{
var p = new Puzzle(
new int?[][] {
new int?[] { 1, null /* 2 */, null /* 3 */, 2 },
new int?[] { null /* 2 */, null /* 3 */, 1, null /* 2 */ },
new int?[] { null /* 2 */, null /* 1 */, null /* 2 */, null /* 3 */ },
new int?[] { 3, 2, 2, 1 },
}, new int[] { 1, 2, 2, 3 });
var puzzle = new PuzzleWithPossibleValues(p);
var rule = new MaxCountPerRowRule();
Assert.True(rule.TryInit(puzzle, puzzle.UniquePossibleValues));
var coordTracker = new CoordinateTracker(puzzle.Size);
rule.Update(new Coordinate(1, 0), 2, coordTracker);
Assert.Equal(new BitVector(0b1100), rule.GetPossibleValues(new Coordinate(1, 0)));
rule.Update(new Coordinate(1, 3), 2, coordTracker);
Assert.Equal(new BitVector(0b1000), rule.GetPossibleValues(new Coordinate(1, 0)));
rule.Revert(new Coordinate(1, 3), 2, coordTracker);
Assert.Equal(new BitVector(0b1100), rule.GetPossibleValues(new Coordinate(1, 0)));
rule.Revert(new Coordinate(1, 0), 2, coordTracker);
Assert.Equal(new BitVector(0b1100), rule.GetPossibleValues(new Coordinate(1, 0)));
}
public void Revert_RevertsSpecifiedRow()
{
var p = new Puzzle(
new int?[][] {
new int?[] { 1, null /* 2 */, null /* 3 */, 2 },
new int?[] { null /* 2 */, null /* 3 */, 1, null /* 2 */ },
new int?[] { null /* 2 */, null /* 1 */, null /* 2 */, null /* 3 */ },
new int?[] { 3, 2, 2, 1 },
}, new int[] { 1, 2, 2, 3 });
var puzzle = new PuzzleWithPossibleValues(p);
var rule = new MaxCountPerRowRule();
Assert.True(rule.TryInit(puzzle, puzzle.UniquePossibleValues));
IList <BitVector> initialPossibleValuesByRow = _GetPossibleValuesByRow(puzzle.Size, rule);
var updatedCoordTracker = new CoordinateTracker(puzzle.Size);
var revertedCoordTracker = new CoordinateTracker(puzzle.Size);
var coord = new Coordinate(1, 1);
int val = 3;
rule.Update(coord, val, updatedCoordTracker);
rule.Revert(coord, val, revertedCoordTracker);
Assert.Equal(
updatedCoordTracker.TrackedCoords.ToArray(),
revertedCoordTracker.TrackedCoords.ToArray());
for (int row = 0; row < initialPossibleValuesByRow.Count; row++)
{
Assert.Equal(
initialPossibleValuesByRow[row],
rule.GetMissingValuesForRow(row));
}
}