}

    @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")

        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 };
        }

        systemHelper.processingTime = 100L;

        DataStoreParams paramMap = new DataStoreParams();
        Map<String, Object> dataMap = new HashMap<>();
        dataMap.put("url", "http://example.com/test");

        indexUpdateCallback.store(paramMap, dataMap);
        assertEquals(100L, indexUpdateCallback.getExecuteTime());

    @Size(max = 1000)
    public String ldapSecurityAuthentication;

    /** LDAP initial context factory class name. */
    @Size(max = 1000)
    public String ldapInitialContextFactory;

    /** OpenID Connect client ID. */
    @Size(max = 1000)
    public String oicClientId;

    /** OpenID Connect client secret. */
    @Size(max = 1000)
    public String oicClientSecret;

    assertThrows(
        IllegalArgumentException.class, () -> BloomFilter.create(unencodedCharsFunnel(), 1, 0.0));
    assertThrows(
        IllegalArgumentException.class, () -> BloomFilter.create(unencodedCharsFunnel(), 1, 1.0));
  }

  public void testFailureWhenMoreThan255HashFunctionsAreNeeded() {
    int n = 1000;