@Test
public void testReveal() {
// TODO: test for setRevealed() return value?
assertFalse("Square should not be revealed by default", s.isRevealed());
s.setRevealed(true);
assertTrue("Square should be revealed after calling setRevealed", s.isRevealed());
}
@Test
public void testObservable() {
TestObserver observer = new TestObserver();
s.addObserver(observer);
s.setRevealed(true);
assertTrue("Square should update observers after revealing", observer.updated);
}
