@DisplayName("Hexdump Utility Tests")
class HexdumpTest extends BaseTest {

    @Test
    @DisplayName("Should convert byte array to hex string")
    void testToHexString() {
        // Given
        byte[] data = { 0x00, 0x0F, (byte) 0xFF, 0x7F, (byte) 0x80 };

        // When
        String result = Hexdump.toHexString(data);

        // Then
        assertNotNull(result);
        assertEquals("000FFF7F80", result);
    }

    @Test

    }

    static int readULong(final byte[] src, final int index) {
        return src[index] & 0xff | (src[index + 1] & 0xff) << 8 | (src[index + 2] & 0xff) << 16 | (src[index + 3] & 0xff) << 24;
    }

    static int readUShort(final byte[] src, final int index) {
        return src[index] & 0xff | (src[index + 1] & 0xff) << 8;
    }

    static byte[] readSecurityBuffer(final byte[] src, final int index) {

          bytes.length >= 4,
          "HashCode#asInt() requires >= 4 bytes (it only has %s bytes).",
          bytes.length);
      return (bytes[0] & 0xFF)
          | ((bytes[1] & 0xFF) << 8)
          | ((bytes[2] & 0xFF) << 16)
          | ((bytes[3] & 0xFF) << 24);
    }

    @Override
    public long asLong() {
      checkState(
          bytes.length >= 8,

                Arguments.of(new byte[] { (byte) 0x00, (byte) 0x00, (byte) 0x00 }, "AAAA"), // all zeros
                Arguments.of(new byte[] { (byte) 0xff, (byte) 0xff, (byte) 0xff }, "////")) // all 0xFF bytes
        ;
    }

    @ParameterizedTest(name = "encode({1}) -> {2}")
    @MethodSource("encodeProvider")
    void testEncode(byte[] input, String expected) {
        // Arrange & Act

      h ^= fingerprint(buf, bufLen);
      h = remix(h);
      buf[bufLen++] = getChar(h);

      int x0 = buf[bufLen - 1] & 0xff;
      int x1 = buf[bufLen - 2] & 0xff;
      int x2 = buf[bufLen - 3] & 0xff;
      int x3 = buf[bufLen / 2] & 0xff;
      buf[((x0 << 16) + (x1 << 8) + x2) % bufLen] ^= x3;
      buf[((x1 << 16) + (x2 << 8) + x3) % bufLen] ^= i % 256;
    }

    int readRDataWireFormat(final byte[] src, int srcIndex) {
        final int start = srcIndex;
        this.numberOfNames = src[srcIndex] & 0xFF;
        final int namesLength = this.numberOfNames * 18;
        final int statsLength = this.rDataLength - namesLength - 1;
        this.numberOfNames = src[srcIndex] & 0xFF;
        srcIndex++;
        // gotta read the mac first so we can populate addressArray with it

        final int i = ((inData[inIndex] & 0xff) << 16) + ((inData[inIndex + 1] & 0xff) << 8) + (inData[inIndex + 2] & 0xff);
        outData[outIndex] = ENCODE_TABLE[i >> 18];
        outData[outIndex + 1] = ENCODE_TABLE[i >> 12 & 0x3f];
        outData[outIndex + 2] = ENCODE_TABLE[i >> 6 & 0x3f];
        outData[outIndex + 3] = ENCODE_TABLE[i & 0x3f];
    }

        byte[] buffer = new byte[100];
        int bufferIndex = 0;

        // Reserved bytes
        buffer[bufferIndex] = (byte) 0xFF;
        buffer[bufferIndex + 1] = (byte) 0xFF;
        buffer[bufferIndex + 2] = (byte) 0xFF;

        // Set fields with negative values (should be treated as unsigned)
        SMBUtil.writeInt4(-1, buffer, bufferIndex + 3); // Should be read as 0xFFFFFFFF

    assertThat(converter.convert("0")).isEqualTo(0);
    assertThat(converter.convert("-1")).isEqualTo(-1);
    assertThat(converter.convert("0xff")).isEqualTo(255);
    assertThat(converter.convert("0xFF")).isEqualTo(255);
    assertThat(converter.convert("-0xFF")).isEqualTo(-255);
    assertThat(converter.convert("#0000FF")).isEqualTo(255);
    assertThat(converter.convert("0666")).isEqualTo(438);
  }

        out[i++] = (byte) ((der.length >> 8) & 0xFF);
        out[i++] = (byte) (der.length & 0xFF);
        System.arraycopy(der, 0, out, i, der.length);
        i += der.length;
        out[i++] = (byte) ((nb.length >> 24) & 0xFF);
        out[i++] = (byte) ((nb.length >> 16) & 0xFF);
        out[i++] = (byte) ((nb.length >> 8) & 0xFF);
        out[i++] = (byte) (nb.length & 0xFF);
        System.arraycopy(nb, 0, out, i, nb.length);