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)); }