### Question:
HibernateGroupDAO extends HibernatePersistentObjectDAO<Group> implements GroupDAO { @Override public boolean insert(Group group, long parentGroupId) { if (!checkStoringAspect()) return false; boolean result = true; if (group == null) return false; try { saveOrUpdate(group); flush(); if (parentGroupId != 0) { inheritACLs(group, parentGroupId); } else { fixGuestPermissions(group); } } catch (Throwable e) { log.error(e.getMessage(), e); result = false; } return result; } private  HibernateGroupDAO(); MenuDAO getMenuDAO(); void setMenuDAO(MenuDAO menuDAO); boolean delete(long groupId, int code); boolean exists(String groupname, long tenantId); @Override Collection<String> findAllGroupNames(long tenantId); @Override Group findByName(String name, long tenantId); @Override boolean insert(Group group, long parentGroupId); @Override void inheritACLs(Group group, long parentGroupId); @Override Collection<Group> findByLikeName(String name, long tenantId); @Override int count(); @Override void initialize(Group group); @Override boolean store(Group group); @Override void fixGuestPermissions(Group group);  }### Answer:
@Test public void testInsert() { Assert.assertNull(dao.findByName("parentNone", 1)); Group group = new Group(); group.setName("parentNone"); group.setDescription("Test group for insert method parent = none"); Assert.assertTrue(dao.insert(group, 90)); Assert.assertNotNull(dao.findByName("parentNone", 1)); Assert.assertNull(dao.findByName("parentNotEmpty", 1)); group = new Group(); group.setName("parentNotEmpty"); group.setDescription("Test group for insertX method parentGroup Not Empty"); Assert.assertTrue(dao.insert(group, 90)); Assert.assertNotNull(dao.findByName("parentNotEmpty", 1)); }