return suite;
  }

  public void testRoundTripSources() throws Exception {
    File asciiFile = getTestFile("ascii.txt");
    ByteSource byteSource = Files.asByteSource(asciiFile);
    assertSame(byteSource, byteSource.asCharSource(UTF_8).asByteSource(UTF_8));
  }

  public void testToByteArray() throws IOException {
    File asciiFile = getTestFile("ascii.txt");
    File i18nFile = getTestFile("i18n.txt");

  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 {

    ByteSourceFactory byteSourceFactory = SourceSinkFactories.asByteSourceFactory(factory);
    suite.addTest(
        ByteSourceTester.suiteForBytes(
            byteSourceFactory, bytes, name + ".asByteSource[Charset]", desc, slice));
    return suite;
  }

  static TestSuite suiteForString(
      CharSourceFactory factory, String string, String name, String desc) {

  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(),