@Test
public void testGetTrustedResourceGroupRolePrefix() {

    assertEquals("coretech:role.storage.tenant.sports.api.",
            ZMSUtils.getTrustedResourceGroupRolePrefix("coretech", "storage", "sports.api", null));
    assertEquals("coretech:role.storage.tenant.sports.api.res_group.group1.",
            ZMSUtils.getTrustedResourceGroupRolePrefix("coretech", "storage", "sports.api", "group1"));
}