fromIndex++;
        }
        assertTrue(docCount < 10, "Expected fewer than 10 documents due to truncation, got " + docCount);
    }

    @Test
    public void test_generateSummaryResponse_singleDocWithinLimit() {
        client.setTestContextMaxChars(10000);
        client.setTestSystemPrompt("system");
        client.setTestSummarySystemPrompt("{{systemPrompt}}\n{{documentContent}}\n{{languageInstruction}}");