final String result = client.testBuildContext(documents);
        assertTrue(result.contains("Plain text content without any HTML"));
    }

    @Test
    public void test_buildContext_multipleDocumentsWithHtml() {
        final List<Map<String, Object>> documents = new ArrayList<>();
        final Map<String, Object> doc1 = new HashMap<>();
        doc1.put("title", "Doc 1");