long startTime = System.nanoTime();
            for (int i = 0; i < 1000; i++) {
                auth1.equals(auth2);
                auth1.equals(auth3);
                auth2.equals(auth3);
            }
            long totalTime = System.nanoTime() - startTime;

            // Should complete in reasonable time (< 10ms for 3000 operations)

        public Integer getSuggestUpdateRequestIntervalAsInteger() {
            return 1000;
        }

        @Override
        public Integer getSuggestUpdateDocPerRequestAsInteger() {
            return 100;
        }

        @Override
        public Integer getSuggestSourceReaderScrollSizeAsInteger() {
            return 1000;
        }

        @Override

    }

    @Test
    public void test_smartSummary_headTailRatio() {
        // Use 1000-char content with summaryMaxChars=500, no sources
        // omitMarker="\n...[omitted]...\n" (17 chars), suffix="", bodyBudget=500-0-17=483
        // headChars = (int)(483 * 0.6) = 289, tailChars = 483 - 289 = 194
        final String content = "A".repeat(1000);
        final ChatMessage msg = ChatMessage.assistantMessage(content);

        assertTrue("Test should complete quickly (duration: " + duration + "ms)", duration < 1000);
    }

    // Fast mock implementations to minimize overhead

    private static class FastMockIndexUpdateCallback implements IndexUpdateCallback {
        @Override
        public long getExecuteTime() {
            return 100L;
        }

        @Override
        public long getDocumentSize() {

            // Test common file system sizes
            long[] typicalSizes = { 1024L * 1024L * 1024L, // 1 GB
                    1024L * 1024L * 1024L * 10L, // 10 GB
                    1024L * 1024L * 1024L * 100L, // 100 GB
                    1024L * 1024L * 1024L * 1024L, // 1 TB
                    1024L * 1024L * 1024L * 1024L * 10L // 10 TB
            };

            for (long size : typicalSizes) {

    return ImmutableList.of(
        Striped.readWriteLock(100),
        Striped.readWriteLock(256),
        Striped.lock(100),
        Striped.lock(256),
        Striped.custom(100, FAIR_LOCK_SUPPLER),
        Striped.custom(256, FAIR_LOCK_SUPPLER),
        Striped.semaphore(100, 1),
        Striped.semaphore(256, 1));
  }

    return ImmutableList.of(
        Striped.readWriteLock(100),
        Striped.readWriteLock(256),
        Striped.lock(100),
        Striped.lock(256),
        Striped.custom(100, FAIR_LOCK_SUPPLER),
        Striped.custom(256, FAIR_LOCK_SUPPLER),
        Striped.semaphore(100, 1),
        Striped.semaphore(256, 1));
  }

            byte[] buffer = new byte[256];

            // Encode multiple times
            for (int i = 0; i < 1000; i++) {
                int result = request.encode(buffer, 0);
                assertTrue(result > 0);
            }

            assertEquals(1000, request.getEncodeCallCount());
        }

        @Test
        @DisplayName("Should handle repeated size calls efficiently")

        } else {
            originalValue = Integer.parseInt(limitPercentage);
        }

        if (originalValue > 100) {
            this.limitPercentage = 100;
        } else if (originalValue < 1) {
            this.limitPercentage = 1;
        } else {
            this.limitPercentage = originalValue;
        }

        assertEquals(sb.toString(), item.getText());
        assertNotNull(item.getId());
    }

    @Test
    public void test_manyWords() {
        String[] text = new String[100];
        String[][] readings = new String[100][];
        for (int i = 0; i < 100; i++) {
            text[i] = "word" + i;
            readings[i] = new String[] { "reading" + i };
        }