public void Revert_RevertsSpecifiedCoordinate() { var puzzle = new PuzzleWithPossibleValues(new int?[][] { new int?[] { 1, null /* 4 */, null /* 3 */, 2 }, new int?[] { null /* 2 */, null /* 3 */, 1, null /* 4 */ }, new int?[] { null /* 4 */, null /* 1 */, null /* 2 */, null /* 3 */ }, new int?[] { 3, 2, 4, 1 } }); var rule = new StandardRules(); Assert.True(rule.TryInit(puzzle, puzzle.UniquePossibleValues)); BitVector[,] initialPossibleValues = _GetPossibleValues(puzzle.Size, rule); var updatedCoordTracker = new CoordinateTracker(puzzle.Size); var coord = new Coordinate(1, 1); int val = 3; rule.Update(coord, val, updatedCoordTracker); var revertedCoordTracker = new CoordinateTracker(puzzle.Size); rule.Revert(coord, val, revertedCoordTracker); Assert.Equal( updatedCoordTracker.TrackedCoords.ToArray(), revertedCoordTracker.TrackedCoords.ToArray()); for (int row = 0; row < puzzle.Size; row++) { for (int column = 0; column < puzzle.Size; column++) { Assert.Equal( initialPossibleValues[row, column], rule.GetPossibleValues(new Coordinate(row, column))); } } }
public void Update_UpdatesSpecifiedCoordinate() { var puzzle = new PuzzleWithPossibleValues(new int?[][] { new int?[] { 1, null /* 4 */, null /* 3 */, 2 }, new int?[] { null /* 2 */, null /* 3 */, 1, null /* 4 */ }, new int?[] { null /* 4 */, null /* 1 */, null /* 2 */, null /* 3 */ }, new int?[] { 3, 2, 4, 1 } }); var rule = new StandardRules(); Assert.True(rule.TryInit(puzzle, puzzle.UniquePossibleValues)); var coordTracker = new CoordinateTracker(puzzle.Size); var coord = new Coordinate(1, 1); int val = 3; rule.Update(coord, val, coordTracker); Assert.Equal( new HashSet <Coordinate> { new Coordinate(1, 0), new Coordinate(1, 3), new Coordinate(0, 1), new Coordinate(2, 1) }, new HashSet <Coordinate>(coordTracker.TrackedCoords.ToArray())); Assert.Equal(new BitVector(0b10000), rule.GetPossibleValues(new Coordinate(0, 1))); Assert.Equal(new BitVector(0b10100), rule.GetPossibleValues(new Coordinate(1, 0))); Assert.Equal(new BitVector(0b10000), rule.GetPossibleValues(new Coordinate(1, 3))); Assert.Equal(new BitVector(0b10010), rule.GetPossibleValues(new Coordinate(2, 1))); }
public void TryInitFor_WithDuplicateValueInRow_Fails() { var puzzle = new PuzzleWithPossibleValues(new int?[][] { new int?[] { 1, null /* 4 */, null /* 3 */, 2 }, new int?[] { null /* 2 */, 3, 3, null /* 4 */ }, new int?[] { null /* 4 */, null /* 1 */, null /* 2 */, null /* 3 */ }, new int?[] { 3, 2, 4, 1 } }); var rule = new StandardRules(); Assert.False(rule.TryInit(puzzle, puzzle.UniquePossibleValues)); }
public void CopyWithNewReference_CreatesDeepCopy() { var puzzle = new PuzzleWithPossibleValues(new int?[][] { new int?[] { 1, null /* 4 */, null /* 3 */, 2 }, new int?[] { null /* 2 */, null /* 3 */, 1, null /* 4 */ }, new int?[] { null /* 4 */, null /* 1 */, null /* 2 */, null /* 3 */ }, new int?[] { 3, 2, 4, 1 } }); var rule = new StandardRules(); Assert.True(rule.TryInit(puzzle, puzzle.UniquePossibleValues)); var puzzleCopy = new PuzzleWithPossibleValues(puzzle); IRule ruleCopy = rule.CopyWithNewReference(puzzleCopy); int val = 3; var coord = new Coordinate(1, 1); ruleCopy.Update(coord, val, new CoordinateTracker(puzzle.Size)); Assert.NotEqual(rule.GetPossibleValues(coord), ruleCopy.GetPossibleValues(coord)); puzzleCopy[coord] = val; var secondCoord = new Coordinate(0, 1); int secondVal = 4; var coordTracker = new CoordinateTracker(puzzle.Size); ruleCopy.Update(secondCoord, secondVal, coordTracker); var originalCoordTracker = new CoordinateTracker(puzzle.Size); rule.Update(secondCoord, secondVal, originalCoordTracker); Assert.Equal( new HashSet <Coordinate> { new Coordinate(0, 2), new Coordinate(2, 1), new Coordinate(1, 0) }, new HashSet <Coordinate>(coordTracker.TrackedCoords.ToArray())); Assert.Equal( new HashSet <Coordinate> { new Coordinate(0, 2), new Coordinate(1, 1), new Coordinate(2, 1), new Coordinate(1, 0) }, new HashSet <Coordinate>(originalCoordTracker.TrackedCoords.ToArray())); }
public void TryInitFor_FiltersCorrectly() { var puzzle = new PuzzleWithPossibleValues(new int?[][] { new int?[] { 1, null /* 4 */, null /* 3 */, 2 }, new int?[] { null /* 2 */, null /* 3 */, 1, null /* 4 */ }, new int?[] { null /* 4 */, null /* 1 */, null /* 2 */, null /* 3 */ }, new int?[] { 3, 2, 4, 1 }, }); var rule = new StandardRules(); Assert.True(rule.TryInit(puzzle, puzzle.UniquePossibleValues)); Assert.Equal(new BitVector(0b11000), rule.GetPossibleValues(new Coordinate(0, 1))); Assert.Equal(new BitVector(0b01000), rule.GetPossibleValues(new Coordinate(0, 2))); Assert.Equal(new BitVector(0b10100), rule.GetPossibleValues(new Coordinate(1, 0))); Assert.Equal(new BitVector(0b11000), rule.GetPossibleValues(new Coordinate(1, 1))); Assert.Equal(new BitVector(0b11000), rule.GetPossibleValues(new Coordinate(1, 3))); Assert.Equal(new BitVector(0b10000), rule.GetPossibleValues(new Coordinate(2, 0))); Assert.Equal(new BitVector(0b10010), rule.GetPossibleValues(new Coordinate(2, 1))); Assert.Equal(new BitVector(0b01100), rule.GetPossibleValues(new Coordinate(2, 2))); Assert.Equal(new BitVector(0b01000), rule.GetPossibleValues(new Coordinate(2, 3))); }