return null;
    }
    long accum = -digit;

    long cap = Long.MIN_VALUE / radix;

    while (index < string.length()) {
      digit = AsciiDigits.digit(string.charAt(index++));
      if (digit < 0 || digit >= radix || accum < cap) {
        return null;
      }
      accum *= radix;
      if (accum < Long.MIN_VALUE + digit) {
        return null;
      }
      accum -= digit;
    }

    }

    @Nested
    @DisplayName("Test Implementation Tests")
    class TestImplementationTests {

        @ParameterizedTest
        @ValueSource(bytes = { -1, 0, 1, 3, 7, Byte.MAX_VALUE, Byte.MIN_VALUE })
        @DisplayName("Should handle various information class values")
        void testVariousInformationClassValues(byte classValue) {

        int result = SMBUtil.readInt4(buffer, 0);
        assertEquals((int) (input & 0xFFFFFFFFL), result);
    }

    @ParameterizedTest
    @ValueSource(longs = { 0L, 1L, -1L, Long.MAX_VALUE, Long.MIN_VALUE, 0x123456789ABCDEF0L })
    void testWriteReadInt8RoundTrip(long input) {
        byte[] buffer = new byte[8];
        SMBUtil.writeInt8(input, buffer, 0);
        long result = SMBUtil.readInt8(buffer, 0);

        // Assert
        assertNotNull(transPeekNamedPipe);
        assertNull(transPeekNamedPipe.name);
    }

    @ParameterizedTest
    @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE, 0xFFFF })
    @DisplayName("Constructor should handle various FID values")
    void testConstructorWithVariousFids(int fid) {
        // Act
        transPeekNamedPipe = new TransPeekNamedPipe(mockConfig, TEST_PIPE_NAME, fid);

  public static final class ImmutableLongArrayHeadSubListAsListGenerator
      extends TestLongListGenerator {
    @Override
    protected List<Long> create(Long[] elements) {
      Long[] suffix = {Long.MIN_VALUE, Long.MAX_VALUE};
      Long[] all = concat(elements, suffix);
      return makeArray(all).subArray(0, elements.length).asList();
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // used only from suite

  }

  @Test fun `min long`() {
    val bytes = "02088000000000000000".decodeHex()
    assertThat(Adapters.INTEGER_AS_LONG.fromDer(bytes)).isEqualTo(Long.MIN_VALUE)
    assertThat(Adapters.INTEGER_AS_LONG.toDer(Long.MIN_VALUE)).isEqualTo(bytes)
  }

  @Test fun `bigger than max long`() {
    val bytes = "0209008000000000000001".decodeHex()
    val bigInteger = BigInteger("9223372036854775809")

    frame.writeByte(Http2.TYPE_SETTINGS)
    frame.writeByte(FLAG_NONE)
    frame.writeInt(0) // Settings are always on the connection stream 0.
    frame.writeShort(4) // SETTINGS_INITIAL_WINDOW_SIZE
    frame.writeInt(Int.MIN_VALUE)
    assertFailsWith<IOException> {
      reader.nextFrame(requireSettings = false, BaseTestHandler())
    }.also { expected ->
      assertThat(expected.message).isEqualTo(

    }

    /**
     * Test FileEndOfFileInformation with various end of file values
     */
    @ParameterizedTest
    @ValueSource(longs = { 0L, 1L, -1L, Long.MAX_VALUE, Long.MIN_VALUE, 1024L, 1048576L })
    @DisplayName("Test FileEndOfFileInformation with various values")
    void testFileEndOfFileInformationWithVariousValues(long endOfFile) throws SMBProtocolDecodingException {

            new ArrayList<>(),
            null)
        .inOrder();
  }

  public void testNatural() {
    Ordering<Integer> comparator = Ordering.natural();
    testComparator(comparator, Integer.MIN_VALUE, -1, 0, 1, Integer.MAX_VALUE);
    assertThrows(NullPointerException.class, () -> comparator.compare(1, null));
    assertThrows(NullPointerException.class, () -> comparator.compare(null, 2));

            new ArrayList<>(),
            null)
        .inOrder();
  }

  public void testNatural() {
    Ordering<Integer> comparator = Ordering.natural();
    testComparator(comparator, Integer.MIN_VALUE, -1, 0, 1, Integer.MAX_VALUE);
    assertThrows(NullPointerException.class, () -> comparator.compare(1, null));
    assertThrows(NullPointerException.class, () -> comparator.compare(null, 2));