@Test
public void testEmpty() throws Exception {
subject.add("cows");
subject.add("sheep");
subject.add("ducks");
subject.add("mice");
subject.add("dogs");
subject.add("cats");
subject.add("birds");
subject.clear();
boolean nothing = subject.isEmpty();
Assert.assertTrue(nothing);
subject.add("birds");
nothing = subject.isEmpty();
Assert.assertFalse(nothing);
}
@Test
public void testClear() throws Exception {
subject.add("cows");
subject.add("sheep");
subject.add("ducks");
subject.add("mice");
subject.add("dogs");
subject.add("cats");
subject.add("birds");
subject.clear();
int size = subject.size();
Assert.assertEquals(0, size);
subject.add("birds");
size = subject.size();
Assert.assertEquals(1, size);
}