assertEquals(0, authenticators.length);
    }

    // Test getSsoType() with actual FessConfig
    public void test_getSsoType_withFessConfig() {
        final String expectedSsoType = "openid";
        FessConfig fessConfig = new FessConfig.SimpleImpl() {
            @Override
            public String getSsoType() {
                return expectedSsoType;
            }
        };

            @Override
            public String getOsddLinkEnabled() {
                return "auto";
            }

            @Override
            public String getSsoType() {
                return "none";
            }
        });
        final OsddHelper osddHelper = new OsddHelper();
        osddHelper.setContentType("application/opensearchdescription+xml");
        osddHelper.init();