}

    @Test
    @DisplayName("read(byte[],off,0): returns 0 without I/O")
    void read_lenZero_returnsZero() throws Exception {
        SmbRandomAccessFile raf = newInstance("r", false, false, false);
        byte[] buf = new byte[4];
        assertEquals(0, raf.read(buf, 0, 0));
    }

    @Test
    @DisplayName("read(): returns -1 when underlying read reports EOF")

    assertEquals(-1, reader.read());
    assertEquals(-1, reader.read(new char[10], 0, 10));
    assertEquals(-1, reader.read(CharBuffer.allocate(10)));
    assertEquals(0, reader.skip(10));
  }

  private static String readFully(CharSequenceReader reader) throws IOException {
    StringBuilder builder = new StringBuilder();
    int read;
    while ((read = reader.read()) != -1) {
      builder.append((char) read);

   */
  public static byte[] toByteArray(File file) throws IOException {
    return asByteSource(file).read();
  }

  /**
   * Reads all characters from a file into a {@link String}, using the given character set.
   *
   * @param file the file to read from
   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants

      }
    }
  }

  abstract val path: Any

  /**
   * Reads the public suffix list treating the operation as uninterruptible. We always want to read
   * the list otherwise we'll be left in a bad state. If the thread was interrupted prior to this
   * operation, it will be re-interrupted after the list is read.
   */
  private fun readTheListUninterruptibly() {
    var interrupted = false
    try {

		return
	}
}

// readAllInto reads from r and appends to b until an error or EOF and returns the data it read.
// A successful call returns err == nil, not err == EOF. Because readAllInto is
// defined to read from src until EOF, it does not treat an EOF from Read
// as an error to be reported.
func readAllInto(b []byte, r *wsutil.Reader, want int64) ([]byte, error) {
	read := int64(0)
	for {
		if len(b) == cap(b) {

/**
 * This class will allow a Java program to read and write data to Named
 * Pipes and Transact NamedPipes.
 *
 * <p>There are three Win32 function calls provided by the Windows SDK
 * that are important in the context of using jCIFS. They are:
 *
 * <ul>
 * <li> <code>CallNamedPipe</code> A message-type pipe call that opens,
 *      writes to, reads from, and closes the pipe in a single operation.

 */
public interface DocumentReader extends Closeable {
    /**
     * Reads a document and returns its contents as a map.
     *
     * @return a map containing the document's data, or null if there are no more documents to read.
     */
    Map<String, Object> read();

    @Override
    void close();

class HeadersReader(
  val source: BufferedSource,
) {
  private var headerLimit = HEADER_LIMIT

  /** Read a single line counted against the header size limit. */
  fun readLine(): String {
    val line = source.readUtf8LineStrict(headerLimit)
    headerLimit -= line.length.toLong()
    return line
  }

  /** Reads headers or trailers. */
  fun readHeaders(): Headers {
    val result = Headers.Builder()
    while (true) {

        offset += 2;

        // Decode
        int bytesDecoded = smbInfoAllocation.decode(buffer, 0, buffer.length);

        // Verify - actual implementation reads 20 bytes (4 + 4 + 4 + 4 + 4)
        // bytesPerSect is read as Int2 but advances by 4 bytes (padding)
        assertEquals(20, bytesDecoded);

        // Verify capacity calculation: alloc * sectPerAlloc * bytesPerSect

        }
    });
}
```

### 5.3 Read/Write Operations with Multi-Channel
```java
// In SmbFile.java
public void optimizedLargeRead(byte[] buffer, long offset, int length) throws IOException {
    if (!session.isMultiChannelEnabled() || length < 1048576) {  // 1MB threshold
        // Use single channel for small reads
        normalRead(buffer, offset, length);
        return;
    }