@Test
public void testRemoveRanking() {
r.doSomething();
r.doRemoveSomething();
Achievement ach = gs.getAchievement("Spider", "Noob");
assertNull(ach);
assertEquals(0, gs.getAchievements("Spider").size());
}
@Test
public void testAddRanking() {
r.doSomething();
Achievement ach = gs.getAchievement("Spider", "Noob");
// casting
assertEquals(1, gs.getAchievements("Spider").size());
assertEquals("level 1", ((Ranking) ach).getLevel());
}