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

    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 {

     *     despite physically existing in the class path.
     * @since 20.0
     */
    public final ByteSource asByteSource() {
      return Resources.asByteSource(url());
    }

    /**
     * Returns a {@link CharSource} view of the resource from which its bytes can be read as
     * characters decoded with the given {@code charset}.
     *

      throws IOException {
    byte[] data = newPreFilledByteArray(dataSize);
    FileBackedOutputStream out =
        new FileBackedOutputStream(fileThreshold, resetWhenGarbageCollected);
    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);

      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();

  public static TestSuite suite() {
    TestSuite suite = new TestSuite();
    suite.addTest(
        ByteSourceTester.tests(
            "Resources.asByteSource[URL]", SourceSinkFactories.urlByteSourceFactory(), true));
    suite.addTest(
        CharSourceTester.tests(
            "Resources.asCharSource[URL, Charset]",
            SourceSinkFactories.urlCharSourceFactory(),

  public static TestSuite suite() {
    TestSuite suite = new TestSuite();
    suite.addTest(
        ByteSourceTester.tests(
            "Resources.asByteSource[URL]", SourceSinkFactories.urlByteSourceFactory(), true));
    suite.addTest(
        CharSourceTester.tests(
            "Resources.asCharSource[URL, Charset]",
            SourceSinkFactories.urlCharSourceFactory(),