public void testRemoveLast() {
iter = list.listIterator(numElements);
Object last = iter.previous();
iter.remove();
assertEquals(list.size(), numElements - 1);
assertTrue(last.equals(numElements - 1));
}
public void testRemoveFirst() {
iter = list.listIterator();
Object first = iter.next();
iter.remove();
assertEquals(list.size(), numElements - 1);
assertTrue(first.equals(0));
}
/**
* You need to have called next (or previous) to call remove Try to do remove without calling next
* and see that an exception is thrown
*/
public void testTryRemoveWithoutNext() {
boolean threwException = false;
iter = list.listIterator();
try {
iter.remove(); // Try removing without having called next
} catch (IllegalStateException e) {
threwException = true; // Control should get to this point
}
assertTrue(threwException);
}