assertThrows(CIFSException.class, handle::getSessionKey);
        }
    }

    @Nested
    @DisplayName("Send/Receive Fragment Tests")
    class SendReceiveFragmentTests {

        @Test
        @DisplayName("Should send and receive fragment successfully")
        void testDoSendReceiveFragment_Success() throws Exception {
            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();

  fun toJavaNetUrl() {
    val httpUrl = "http://username:password@host/path?query#fragment".toHttpUrl()
    val javaNetUrl = httpUrl.toUrl()
    assertThat(javaNetUrl.toString())
      .isEqualTo("http://username:password@host/path?query#fragment")
  }

  @Test
  fun toUri() {
    val httpUrl = "http://username:password@host/path?query#fragment".toHttpUrl()
    val uri = httpUrl.toUri()
    assertThat(uri.toString())

      ) {
        builder.fragment("a${value}z")
      }

      override operator fun get(url: HttpUrl): String {
        val fragment = url.fragment
        return fragment!!.substring(1, fragment.length - 1)
      }
    }, ;

    abstract fun urlString(value: String): String

    abstract fun encodedValue(url: HttpUrl): String

    abstract operator fun set(
      builder: HttpUrl.Builder,

        }
        return null;
    }

    @Override
    public String toString() {
        return binding.toString();
    }

    /**
     * Sends a DCERPC fragment to the remote endpoint
     * @param buf the buffer containing the fragment
     * @param off the offset into the buffer
     * @param length the length of data to send
     * @param isDirect whether to use direct transmission

	endPos := sr.pos + int64(len(b))
	for endPos > sr.pos && err == nil {
		var nf int // Bytes read in fragment
		holeStart, holeEnd := sr.sp[0].Offset, sr.sp[0].endOffset()
		if sr.pos < holeStart { // In a data fragment
			bf := b[:min(int64(len(b)), holeStart-sr.pos)]
			nf, err = tryReadFull(sr.fr, bf)
		} else { // In a hole fragment
			bf := b[:min(int64(len(b)), holeEnd-sr.pos)]
			nf, err = tryReadFull(zeroReader{}, bf)
		}

    }

    @Nested
    @DisplayName("Constants Validation Tests")
    class ConstantsValidationTests {

        @Test
        @DisplayName("All fragment flags should have unique values")
        void testFragmentFlagsUniqueness() {
            // Verify that fragment flags are unique and follow bit pattern
            assertEquals(1, Integer.bitCount(DcerpcConstants.DCERPC_FIRST_FRAG), "DCERPC_FIRST_FRAG should be a single bit");

//
//	var spd sparseDatas = []sparseEntry{
//		{Offset: 2,  Length: 5},  // Data fragment for 2..6
//		{Offset: 18, Length: 3},  // Data fragment for 18..20
//	}
//	var sph sparseHoles = []sparseEntry{
//		{Offset: 0,  Length: 2},  // Hole fragment for 0..1
//		{Offset: 7,  Length: 11}, // Hole fragment for 7..17
//		{Offset: 21, Length: 4},  // Hole fragment for 21..24
//	}
//

    /**
     * Receives a DCERPC fragment from the remote endpoint
     * @param buf the buffer to receive the fragment data
     * @return the number of bytes received
     * @throws IOException if an I/O error occurs during reception
     */
    protected abstract int doReceiveFragment(byte[] buf) throws IOException;

    /**
     * Sends a DCERPC fragment and receives the response in a single operation

        exp = "file://C .doc";
        assertEquals(exp, transformer.decodeUrlAsName(url, true));

        url = "http://example.com/foo/" + encodeUrl("#") + "/@@bar/index.html#fragment?foo=bar";
        exp = "http://example.com/foo/#/@@bar/index.html#fragment?foo=bar";
        assertEquals(exp, transformer.decodeUrlAsName(url, false));
    }

    public void test_getFileName_ok() throws Exception {
        String url, exp;

        ViewHelper.TextFragment fragment = new ViewHelper.TextFragment("prefix", "start", "end", "suffix");
        String urlString = fragment.toURLString();
        assertNotNull(urlString);
        assertTrue(urlString.contains("text="));
        assertTrue(urlString.contains("start"));

        fragment = new ViewHelper.TextFragment(null, "start", null, null);
        urlString = fragment.toURLString();