void testDecodeNoReferrals() {
            // Prepare test data: pathConsumed=0, numReferrals=0, tflags=0
            byte[] testBuffer = new byte[8];
            ByteBuffer bb = ByteBuffer.wrap(testBuffer).order(ByteOrder.LITTLE_ENDIAN);
            bb.putShort((short) 0); // pathConsumed (will be divided by 2)
            bb.putShort((short) 0); // numReferrals
            bb.putShort((short) 0); // tflags

            }
            return copyInternal((FileInputStream) in, wrap(out));
        }
        if (out instanceof FileOutputStream) {
            return copyInternal(wrap(in), (FileOutputStream) out);
        }
        return copyInternal(wrap(in), wrap(out));
    }

    // ////////////////////////////////////////////////////////////////
    // from InputStream to Writer

      HashMap<String, String> map = new HashMap<>();
      for (Entry<String, String> entry : entries) {
        map.put(entry.getKey(), entry.getValue());
      }
      return wrap(map);
    }

    abstract Map<String, String> wrap(HashMap<String, String> map);
  }

  private static TestSuite wrappedHashMapTests(
      WrappedHashMapGenerator generator, String name, Feature<?>... features) {

    assertTrue(okSource.wasStreamClosed());
  }

  public void testConcat() throws IOException {
    CharSource c1 = CharSource.wrap("abc");
    CharSource c2 = CharSource.wrap("");
    CharSource c3 = CharSource.wrap("de");

    String expected = "abcde";

    assertEquals(expected, CharSource.concat(ImmutableList.of(c1, c2, c3)).read());

    assertEquals(
        hashFunction.hashBytes(ByteBuffer.wrap(bytes)),
        hashFunction.newHasher(size).putBytes(ByteBuffer.wrap(bytes)).hash());
    int off = random.nextInt(size);
    int len = random.nextInt(size - off);
    assertEquals(
        hashFunction.hashBytes(ByteBuffer.wrap(bytes, off, len)),
        hashFunction.newHasher(size).putBytes(ByteBuffer.wrap(bytes, off, len)).hash());
  }

        testBuffer = new byte[512];
    }

    // Version 3 Referral Tests

    @Test
    public void testDecodeVersion3WithoutNameList() {
        // Prepare test data
        ByteBuffer bb = ByteBuffer.wrap(testBuffer).order(ByteOrder.LITTLE_ENDIAN);

        // Header
        bb.putShort((short) 3); // version
        bb.putShort((short) 100); // size (large enough for all strings)
        bb.putShort((short) 1); // serverType

            int bytesEncoded = buffer.encode(dst, 0);

            assertEquals(buffer.size(), bytesEncoded);

            // Verify encoded data
            ByteBuffer bb = ByteBuffer.wrap(dst).order(ByteOrder.LITTLE_ENDIAN);
            assertEquals(maxReferralLevel, bb.getShort());

            // Verify path encoding (UTF-16LE)
            byte[] pathBytes = path.getBytes(StandardCharsets.UTF_16LE);

      // Need fresh client to reset sslSocketFactoryOrNull
      client =
        OkHttpClient
          .Builder()
          .eventListenerFactory(
            clientTestRule.wrap(
              object : EventListener() {
                override fun connectionAcquired(
                  call: Call,
                  connection: Connection,
                ) {

                this.writeSize = Math.min(th.getConfig().getSendBufferSize() - 70, 0xFFFF - 70);
            }

            this.fp = 0L;
        } catch (final CIFSException e) {
            throw SmbException.wrap(e);
        }
    }

    /**
     * @return
     * @throws SmbException
     */
    synchronized SmbFileHandleImpl ensureOpen() throws CIFSException {
        // ensure file is open

    assertTrue(okSource.wasStreamClosed());
  }

  public void testConcat() throws IOException {
    CharSource c1 = CharSource.wrap("abc");
    CharSource c2 = CharSource.wrap("");
    CharSource c3 = CharSource.wrap("de");

    String expected = "abcde";

    assertEquals(expected, CharSource.concat(ImmutableList.of(c1, c2, c3)).read());