Bug 252117 [DataBinding] ListBinding does not update from model to target in some cases
tests/org.eclipse.jface.tests.databinding/src/org/eclipse/core/tests/internal/databinding/beans/JavaBeanObservableArrayBasedSetTest.java
assertEquals(0, listener.count);
		set.addAll(elements);
		assertEquals(1, listener.count);
		SetChangeEvent event = listener.event;
		assertEquals(set, event.getObservableSet());
		assertEquals(new HashSet(elements), event.diff.getAdditions());
		assertEquals(Collections.EMPTY_SET, event.diff.getRemovals());
	}
	public void testAddAllPropertyChangeEvent() throws Exception {
		assertPropertyChangeEvent(bean, new Runnable() {
			public void run() {
				set.addAll(Arrays.asList(new String[] { "0", "1" }));
			}
		});
	}
	public void testRemoveAll() throws Exception {
		Collection elements = Arrays.asList(new String[] { "1", "2" });
		set.addAll(elements);
		assertEquals(2, bean.getArray().length);
		set.removeAll(elements);
		assertEquals(0, bean.getArray().length);
	}
	public void testRemoveAllListChangeEvent() throws Exception {
		Collection elements = Arrays.asList(new String[] { "1", "2" });
		set.addAll(elements);
		SetChangeEventTracker listener = SetChangeEventTracker.observe(set);
		assertEquals(0, listener.count);
		set.removeAll(elements);
		SetChangeEvent event = listener.event;
		assertEquals(set, event.getObservableSet());