// Read first 5 bytes
            byte[] buffer = new byte[5];
            int bytesRead = stream.read(buffer);
            assertEquals(5, bytesRead);
            assertEquals("Hello", new String(buffer, 0, bytesRead, "UTF-8"));

            // Read remaining bytes
            byte[] remaining = new byte[20];
            int remainingBytes = stream.read(remaining);

    ByteSource source = out.asByteSource();

    out.write(data);
    assertThat(source.read()).isEqualTo(data);

    out.reset();
    assertThat(source.read()).isEmpty();

    out.write(data);
    assertThat(source.read()).isEqualTo(data);

    out.close();
  }

  private static boolean isAndroid() {

    @Override
    public Model read(File input, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(input, "input cannot be null");

        Model model = read(new FileInputStream(input), options);

        model.setPomFile(input);

        return model;
    }

    @Override
    public Model read(Reader input, Map<String, ?> options) throws IOException {

    }

    /**
     * Reads some number of bytes from the input stream and stores them into the buffer array b.
     *
     * @param b the buffer into which the data is read
     * @return the total number of bytes read into the buffer, or -1 if there is no more data
     * @throws IOException if an I/O error occurs
     */
    @Override
    public int read(final byte[] b) throws IOException {

                InputStream isRecessive = MavenToolchainMergerTest.class.getResourceAsStream("toolchains-jdks.xml")) {
            PersistedToolchains dominant = read(isDominant);
            PersistedToolchains recessive = read(isRecessive);
            assertEquals(2, dominant.getToolchains().size());

            merger.merge(dominant, recessive, TrackableBase.USER_LEVEL);

		return r.err
	}
	return nil
}

// Read reads up to len(p) bytes into p. It returns the number of bytes read (0 <= n <= len(p)) and any error encountered.
// Even if Read returns n < len(p), it may use all of p as scratch space during the call.
// If some data is available but not len(p) bytes, Read conventionally returns what is available instead of waiting for more.

    Reader reader = new StringReader(testString);

    assertEquals(testString.charAt(0), reader.read());
    CharStreams.skipFully(reader, 1);
    assertEquals(testString.charAt(2), reader.read());
    CharStreams.skipFully(reader, 2);
    assertEquals(testString.charAt(5), reader.read());

    assertEquals(-1, reader.read());
  }

  public void testAsWriter() {
    // Should wrap Appendable in a new object

    Reader reader = new StringReader(testString);

    assertEquals(testString.charAt(0), reader.read());
    CharStreams.skipFully(reader, 1);
    assertEquals(testString.charAt(2), reader.read());
    CharStreams.skipFully(reader, 2);
    assertEquals(testString.charAt(5), reader.read());

    assertEquals(-1, reader.read());
  }

  public void testAsWriter() {
    // Should wrap Appendable in a new object

		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)

      // The default implementation of Reader#read(CharBuffer) allocates a
      // temporary char[], so we call Reader#read(char[], int, int) instead.
      int read = (reader != null) ? reader.read(buf, 0, buf.length) : readable.read(cbuf);
      if (read == -1) {
        lineBuf.finish();
        break;
      }
      lineBuf.add(buf, 0, read);
    }
    return lines.poll();
  }