assertNotNull(result);
        assertTrue(result.contains("Test exception"));
        assertFalse(result.contains("docs"));
    }

    // Test query() method
    public void test_query() {
        QueryBuilder queryBuilder = QueryBuilders.matchAllQuery();
        UpdateLabelJob returnedJob = updateLabelJob.query(queryBuilder);

        assertSame(updateLabelJob, returnedJob); // Method chaining

import org.codelibs.fess.entity.SearchRequestParams;
import org.codelibs.fess.unit.UnitFessTestCase;

public class QueryStringBuilderTest extends UnitFessTestCase {

    public void test_query() {
        assertEquals("", getQuery("", new String[0], Collections.emptyMap(), Collections.emptyMap(), false));
    }

    public void test_conditions_q() {
        final String k = "q";