public void Cell_Filled_Ok()
{
var cellMapp = new int[Game.SudokuSize, Game.SudokuSize];
const int theOnlyFilledX = 0;
const int theOnlyFilledY = 0;
const int filledIntValue = 5;
cellMapp[theOnlyFilledX, theOnlyFilledY] = filledIntValue;
var board = new GameBoard(cellMapp);
Assert.True(board.IsCellFilled(0, 0));
Assert.False(board.IsCellFilled(0, 1));
}
