public void testLoadPropertiesReturnsNoPropertiesForNonExistentGroup() throws Exception {
        final DefaultGroupProvider provider = new DefaultGroupProvider();
        provider.createGroup("Test Group A");
        Group newGroup = new Group("New", "New Description", new ArrayList<>(), new ArrayList<>());
        PersistableMap<String,String> result =  provider.loadProperties(newGroup);
        assertEquals(0, result.size());
    }
Verifies that a {@link AbstractGroupProvider#getVisibleGroupNames(String)} returns a group shared with itself
xmppserver/src/test/java/org/jivesoftware/openfire/group/AbstractGroupProviderTest.java