public void BasicPossibilitiesReduction()
{
//Arrange
int col = 1;
int row = 2;
byte filledNumber = 3;
int box = GetBoxNumber(col, row);
var b = new Board();
b.SetAllPossibilitiesTrue();
b.TrySetNumber(col, row, filledNumber, Origin.SolverFresh);
for (int i = 0; i < Board.Size; i++)
{
Assert.IsTrue(b.Possibilities[i, row, filledNumber]);
Assert.IsTrue(b.Possibilities[col, i, filledNumber]);
Assert.IsTrue(b.Possibilities[GetColNumber(box, i), GetRowNumber(box, i), filledNumber]);
}
//Act
int removedCount = Strategies.BasicPossibilitiesReduction(b);
//Assert
Assert.AreEqual(21, removedCount);
for (int i = 0; i < Board.Size; i++)
{
Assert.IsFalse(b.Possibilities[i, row, filledNumber]);
Assert.IsFalse(b.Possibilities[col, i, filledNumber]);
Assert.IsFalse(b.Possibilities[GetColNumber(box, i), GetRowNumber(box, i), filledNumber]);
}
Assert.IsTrue(b.Possibilities[8, 8, filledNumber]);
Assert.IsTrue(b.Possibilities[3, 3, filledNumber]);
}
