@Before
	public void createUserRepository() {
		entityManager.getTransaction().begin();
		entityManager.createNativeQuery("do\n" +
				"$$\n" +
				"declare\n" +
				"  l_stmt text;\n" +
				"begin\n" +
				"  select 'truncate ' || string_agg(format('%I.%I', schemaname, tablename), ',')\n" +
				"    into l_stmt\n" +
				"  from pg_tables\n" +
				"  where schemaname in ('public');\n" +
				"\n" +
				"  execute l_stmt;\n" +
				"end;\n" +
				"$$").executeUpdate();
		entityManager.getTransaction().commit();

		userRepository = new UserRepositoryHibernate(entityManager);
	}