@Test public void togglingUnlitLightTurnsOn1Light() { int x = getRandomCoordinate(); int y = getRandomCoordinate(); grid.toggle(x, y); assertEquals(1, grid.getNumberOfLitLights()); }
@Test public void togglingLitLightTurnsOff1Light() { turnOnAllLights(); int x = getRandomCoordinate(); int y = getRandomCoordinate(); grid.toggle(x, y); assertEquals(ROWS * COLUMNS - 1, grid.getNumberOfLitLights()); }