authenticator.processParentGroup(null, groupList, roleList, "test-id", 10);

        assertEquals("groupList should remain empty", 0, groupList.size());
        assertEquals("roleList should remain empty", 0, roleList.size());
    }

    /**
     * Test addGroupOrRoleName with null value handling.
     */
    @Test

        assertTrue(builder instanceof MatchPhrasePrefixQueryBuilder);

        MatchPhrasePrefixQueryBuilder mpqb = (MatchPhrasePrefixQueryBuilder) builder;
        assertEquals("TEST", mpqb.value()); // Should remain uppercase
    }

    @Test
    public void test_convertPrefixQuery_withEmptyPrefix() throws Exception {
        QueryContext context = new QueryContext("test", false);

        // Verify query builder was created successfully
        // Note: In unit test environment without LastaFlute request,
        // context.highlightedQuerySet and context.fieldLogMap remain null,
        // so context updates cannot be verified. This is expected behavior.
    }

    /**
     * Test convertWithFieldCheck() with different boost values.
     */
    @Test

        doc.put("content", "コンテンツ");

        languageHelper.updateDocument(doc);

        assertEquals("ja", doc.get("lang"));
        assertEquals("既存のタイトル", doc.get("title_ja")); // Should remain unchanged
        assertEquals("コンテンツ", doc.get("content_ja"));
    }

    @Test
    public void test_detectLanguage_blank() {
        assertNull(languageHelper.detectLanguage(null));

        int firstSize = facetQueryView.getQueryMap().size();
        int firstQueriesCount = testFacetInfo.getAddedQueries().size();

        // Call init again
        facetQueryView.init();

        // Size should remain the same
        assertEquals(firstSize, facetQueryView.getQueryMap().size());
        // But queries would be added again to FacetInfo (distinct handles duplicates)

      editorial revisions, annotations, elaborations, or other modifications
      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
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      "Contribution" shall mean any work of authorship, including

        session.addAssistantMessage("A2");

        final List<LlmMessage> history = chatClient.testExtractHistory(session);
        // none mode: assistant messages are skipped, only user messages remain
        assertEquals(2, history.size());
        assertEquals("user", history.get(0).getRole());
        assertEquals("Q1", history.get(0).getContent());
        assertEquals("user", history.get(1).getRole());

        this.namespace = namespace;
        return this;
    }

    /**
     * Sets the document expiration period in days.
     * Controls how long crawled documents remain in the search index.
     *
     * @param documentExpires the expiration period: -2 (system default), -1 (never expire),
     *                       0 or positive (expire after specified days)