@Test
public void testGetTenantResourceGroupRolePrefix() {

    assertEquals("storage.tenant.sports.api.",
            ZMSUtils.getTenantResourceGroupRolePrefix("storage", "sports.api", null));
    assertEquals("storage.tenant.sports.api.res_group.Group1.",
            ZMSUtils.getTenantResourceGroupRolePrefix("storage", "sports.api", "Group1"));
}