assertThat(MoreFiles.equal(fooPath, barPath)).isFalse();
      assertThat(MoreFiles.equal(fooPath, fooPath)).isTrue();
      assertThat(MoreFiles.asByteSource(fooPath).contentEquals(MoreFiles.asByteSource(fooPath)))
          .isTrue();

      Path fooCopy = Files.copy(fooPath, fs.getPath("fooCopy"));
      assertThat(Files.isSameFile(fooPath, fooCopy)).isFalse();

      assertThat(MoreFiles.equal(fooPath, barPath)).isFalse();
      assertThat(MoreFiles.equal(fooPath, fooPath)).isTrue();
      assertThat(MoreFiles.asByteSource(fooPath).contentEquals(MoreFiles.asByteSource(fooPath)))
          .isTrue();

      Path fooCopy = Files.copy(fooPath, fs.getPath("fooCopy"));
      assertThat(Files.isSameFile(fooPath, fooCopy)).isFalse();

      throws IOException {
    byte[] data = newPreFilledByteArray(dataSize);
    FileBackedOutputStream out = new FileBackedOutputStream(fileThreshold, resetOnFinalize);
    ByteSource source = out.asByteSource();
    int chunk1 = min(dataSize, fileThreshold);
    int chunk2 = dataSize - chunk1;

    // Write just enough to not trip the threshold
    if (chunk1 > 0) {
      write(out, data, 0, chunk1, singleByte);

   * returned, rather than round-trip encoding. Subclasses that override this method should behave
   * the same way.
   *
   * @since 20.0
   */
  public ByteSource asByteSource(Charset charset) {
    return new AsByteSource(charset);
  }

  /**
   * Opens a new {@link Reader} for reading from this source. This method returns a new, independent
   * reader each time it is called.
   *

    checkNotNull(factory);
    return new ByteSourceFactory() {
      @Override
      public ByteSource createSource(byte[] data) throws IOException {
        return factory.createSource(new String(data, UTF_8)).asByteSource(UTF_8);
      }

      @Override
      public byte[] getExpected(byte[] data) {
        return factory.getExpected(new String(data, UTF_8)).getBytes(UTF_8);
      }

      @Override

    checkNotNull(factory);
    return new ByteSourceFactory() {
      @Override
      public ByteSource createSource(byte[] data) throws IOException {
        return factory.createSource(new String(data, UTF_8)).asByteSource(UTF_8);
      }

      @Override
      public byte[] getExpected(byte[] data) {
        return factory.getExpected(new String(data, UTF_8)).getBytes(UTF_8);
      }

      @Override

  public static TestSuite suite() {
    TestSuite suite = new TestSuite();
    for (boolean asByteSource : new boolean[] {false, true}) {
      suite.addTest(
          CharSourceTester.tests(
              "CharSource.wrap[CharSequence]",
              SourceSinkFactories.stringCharSourceFactory(),
              asByteSource));
      suite.addTest(
          CharSourceTester.tests(

    AsCharSource(Charset charset) {
      this.charset = checkNotNull(charset);
    }

    @Override
    public ByteSource asByteSource(Charset charset) {
      if (charset.equals(this.charset)) {
        return ByteSource.this;
      }
      return super.asByteSource(charset);
    }

    @Override
    public Reader openStream() throws IOException {

     * entities such as devices or pipes, in which case we must fall back on comparing the bytes
     * directly.
     */
    ByteSource source1 = asByteSource(path1);
    ByteSource source2 = asByteSource(path2);
    long len1 = source1.sizeIfKnown().or(0L);
    long len2 = source2.sizeIfKnown().or(0L);
    if (len1 != 0 && len2 != 0 && len1 != len2) {
      return false;
    }

     * entities such as devices or pipes, in which case we must fall back on comparing the bytes
     * directly.
     */
    ByteSource source1 = asByteSource(path1);
    ByteSource source2 = asByteSource(path2);
    long len1 = source1.sizeIfKnown().or(0L);
    long len2 = source2.sizeIfKnown().or(0L);
    if (len1 != 0 && len2 != 0 && len1 != len2) {
      return false;
    }