Exception level3 = new IllegalArgumentException("Level 3 - Root cause");
        Exception level2 = new IllegalStateException("Level 2", level3);
        Exception level1 = new IOException("Level 1", level2);
        CrawlerSystemException topLevel = new CrawlerSystemException("Top level", level1);

        // Verify chain
        assertSame(level1, topLevel.getCause());

        }
    }

    public void test_deeplyNestedDirectories() throws Exception {
        String deepUrl = "smb://" + host + ":" + port + "/public/deep/level1/level2/level3/level4/level5/deepfile.txt";

        StandardCrawlerContainer container = new StandardCrawlerContainer().singleton("smbClient", SmbClient.class)
                .singleton("mimeTypeHelper", MimeTypeHelperImpl.class);

            // These are valid levels, skip assertion
            return;
        }

        IllegalArgumentException exception =
                assertThrows(IllegalArgumentException.class, () -> Trans2QueryPathInformation.mapInformationLevel(level));
        assertTrue(exception.getMessage().contains("Unsupported information level"));
    }

    @Test

        // Should write 2 bytes: information level
        assertEquals(2, written);

        // Check information level (FS_SIZE_INFO maps to 0x0103)
        int actualInfoLevel = SMBUtil.readInt2(buffer, 0);
        assertEquals(0x0103, actualInfoLevel);
    }

    @DisplayName("Test writeParametersWireFormat with different information levels")
    @ParameterizedTest

    if (bubbledTo == vacated) {
      // Could not bubble toTrickle up min levels, try moving
      // it from min level to max level (or max to min level) and bubble up
      // there.
      return heap.tryCrossOverAndBubbleUp(index, vacated, toTrickle);
    } else {
      return (bubbledTo < index) ? new MoveDesc<E>(toTrickle, elementData(index)) : null;
    }
  }

   * Returns the ancestor of the current domain at the given number of levels "higher" (rightward)
   * in the subdomain list. The number of levels must be non-negative, and less than {@code N-1},
   * where {@code N} is the number of parts in the domain.
   *
   * <p>TODO: Reasonable candidate for addition to public API.
   */
  private InternetDomainName ancestor(int levels) {

            System.arraycopy(fileId, 0, buffer, 8, 16);
            return buffer;
        }
    }

    @Nested
    @DisplayName("Oplock Level Constants Tests")
    class OplockLevelTests {

        @ParameterizedTest
        @DisplayName("Should handle standard oplock levels")
        @MethodSource("provideOplockLevels")
        void testStandardOplockLevels(byte oplockLevel, String description) throws Exception {

    }

    @Test
    void testReadDataWireFormat_UnsupportedInformationLevel() throws Exception {
        // Test with unsupported information level
        response = new Trans2QueryFSInformationResponse(config, 0x999); // Invalid level

        byte[] buffer = new byte[100];

        // Set dataCount using reflection
        setDataCount(response, 20);

            assertThrows(NullPointerException.class, () -> {
                buffer.size();
            });
        }

        @ParameterizedTest
        @DisplayName("Should handle various referral levels")
        @ValueSource(ints = { 0, 1, 2, 3, 4, 5, 255, 256, 32767, 65535 })
        void testConstructorWithVariousReferralLevels(int maxReferralLevel) {
            String path = "\\\\test";

        public LogMessage(final LogLevel level, final String message) {
            assertArgumentNotNull("level", level);

            this.level = level;
            this.message = message;
        }

        /**
         * Returns the log level.
         *
         * @return the log level
         */
        public LogLevel getLevel() {
            return level;
        }

        /**