Assert.assertEquals(1, grid.getBankHeads(Orientation.HORIZONTAL).length);
Assert.assertEquals(1, grid.getBankHeads(Orientation.VERTICAL).length);
Assert.assertEquals(""
+ "┌─┐\n"
+ "│◌│\n"
+ "└─┘\n", grid.gridAsString());
grid.add(new OriginCell(null), 1, 1);
Assert.assertEquals(1, grid.getBankHeads(Orientation.HORIZONTAL).length);
Assert.assertEquals(1, grid.getBankHeads(Orientation.VERTICAL).length);
Assert.assertEquals(""