@Test public void testFillContinuousAreaSquareOutside() throws FileNotFoundException, IOException {
TextGrid squareGrid;
squareGrid = new TextGrid();
squareGrid.loadFrom("tests/text/simple_square01.txt");
CellSet filledArea = squareGrid.fillContinuousArea(0, 0, '*');
int size = filledArea.size();
assertEquals(64, size);
CellSet expectedFilledArea = new CellSet();
addSquareToCellSet(squareGrid, expectedFilledArea, 0,0, 11,2);