// Not all 10 documents should be fully included
        int docCount = 0;
        int fromIndex = 0;
        while ((fromIndex = systemMsg.indexOf("=== Document ===", fromIndex)) != -1) {
            docCount++;
            fromIndex++;
        }
        assertTrue(docCount < 10, "Expected fewer than 10 documents due to truncation, got " + docCount);
    }

    @Test