*/
    int read(byte[] b) throws SmbException;

    /**
     * Read into buffer from current position
     *
     * @param b
     *            buffer
     * @param off
     *            offset into buffer
     * @param len
     *            read up to <code>len</code> bytes
     * @return number of bytes read
     * @throws SmbException if an I/O error occurs during read
     */

    /** The next byte to read. This is always less than or equal to [upstreamPos]. */
    private var sourcePos = 0L

    /**
     * Selects where to find the bytes for a read and read them. This is one of three sources.
     *
     * ## Upstream
     *
     * In this case the current thread is assigned as the upstream reader. We read bytes from

		Method: Deflate,
		Mode:   0755 | fs.ModeDevice | fs.ModeCharDevice,
	},
}

func TestWriter(t *testing.T) {
	largeData := make([]byte, 1<<17)
	if _, err := rand.Read(largeData); err != nil {
		t.Fatal("rand.Read failed:", err)
	}
	writeTests[1].Data = largeData
	defer func() {
		writeTests[1].Data = nil
	}()

	// write a zip file
	buf := new(bytes.Buffer)
	w := NewWriter(buf)

  }

  /**
   * Reads all bytes from a URL into a byte array.
   *
   * @param url the URL to read from
   * @return a byte array containing all the bytes from the URL
   * @throws IOException if an I/O error occurs
   */
  public static byte[] toByteArray(URL url) throws IOException {
    return asByteSource(url).read();
  }

  /**
   * Reads all characters from a URL into a {@link String}, using the given character set.

    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);

    if (b != -1) {
      hasher.putByte((byte) b);
    }
    return b;
  }

  /**
   * Reads the specified bytes of data from the underlying input stream and updates the hasher with
   * the bytes read.
   */
  @Override
  @CanIgnoreReturnValue
  public int read(byte[] bytes, int off, int len) throws IOException {
    int numOfBytesRead = in.read(bytes, off, len);
    if (numOfBytesRead != -1) {

    ByteSource source = out.asByteSource();

    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.reset();
    assertTrue(Arrays.equals(new byte[0], source.read()));

    out.write(data);
    assertTrue(Arrays.equals(data, source.read()));

    out.close();
  }

  private static boolean isAndroid() {

        // Read first message
        assertEquals(1, sis.read());
        assertEquals(2, sis.read());

        // Read second message
        assertEquals(3, sis.read());
        assertEquals(4, sis.read());
        assertEquals(5, sis.read());

        // After all data is consumed, next read throws IOException
        assertThrows(IOException.class, () -> sis.read());
    }

    @Test

* `write(data)`: Writes `data` (`str` or `bytes`) to the file.
* `read(size)`: Reads `size` (`int`) bytes/characters of the file.
* `seek(offset)`: Goes to the byte position `offset` (`int`) in the file.
    * E.g., `await myfile.seek(0)` would go to the start of the file.
    * This is especially useful if you run `await myfile.read()` once and then need to read the contents again.
* `close()`: Closes the file.

    }

    @Test
    @DisplayName("readn should handle multiple read calls")
    void testReadnMultipleCalls() throws IOException {
        when(mockInputStream.read(any(byte[].class), anyInt(), anyInt())).thenReturn(2) // First read returns 2 bytes
                .thenReturn(2) // Second read returns 2 bytes
                .thenReturn(1); // Third read returns 1 byte

        byte[] buffer = new byte[10];