}
        };

        Set<String> roleSet;

        roleSet = buildByParameter(roleQueryHelperImpl, getMockRequest());
        assertEquals(0, roleSet.size());

        roleQueryHelperImpl.parameterKey = "fess1";

        getMockRequest().setParameter("aaa", "bbb");
        roleSet = buildByParameter(roleQueryHelperImpl, getMockRequest());
        assertEquals(0, roleSet.size());