    @Test
    @DatabaseSetup("classpath:dbunit/empty_dataset.xml")
    public void testFindTenantAdmins() {

        UUID tenantId = UUIDs.timeBased();
        UUID customerId = UUIDs.timeBased();
        create30Adminsand60Users(tenantId, customerId);
        List<User> tenantAdmins1 = userDao.findTenantAdmins(tenantId, new TextPageLink(20));
        assertEquals(20, tenantAdmins1.size());
        List<User> tenantAdmins2 = userDao.findTenantAdmins(tenantId,
                new TextPageLink(20, null, tenantAdmins1.get(19).getId().getId(), null));
        assertEquals(10, tenantAdmins2.size());
        List<User> tenantAdmins3 = userDao.findTenantAdmins(tenantId,
                new TextPageLink(20, null, tenantAdmins2.get(9).getId().getId(), null));
        assertEquals(0, tenantAdmins3.size());
    }