// Test setting bulk timeout
        SuggestSettingsBuilder result = builder.bulkTimeout("30s");
        assertEquals(builder, result); // Test method chaining
        assertEquals("30s", builder.timeoutSettings.bulkTimeout);

        // Test updating bulk timeout
        builder.bulkTimeout("120s");
        assertEquals("120s", builder.timeoutSettings.bulkTimeout);
    }

    @Test
    public void testIndicesTimeout() {

        /** Search timeout. */
        protected String searchTimeout = "15s";
        /** Index timeout. */
        protected String indexTimeout = "1m";
        /** Bulk timeout. */
        protected String bulkTimeout = "1m";
        /** Indices timeout. */
        protected String indicesTimeout = "1m";
        /** Cluster timeout. */
        protected String clusterTimeout = "1m";
        /** Scroll timeout. */

        final SuggestSettingsBuilder settingsBuilder = SuggestSettings.builder();
        settingsBuilder.addInitialSettings("search_engine.type", fessConfig.getFesenType());
        settingsBuilder.bulkTimeout(fessConfig.getIndexBulkTimeout());
        settingsBuilder.clusterTimeout(fessConfig.getIndexHealthTimeout());
        settingsBuilder.indexTimeout(fessConfig.getIndexIndexTimeout());