ByteSourceFactory sliced = SourceSinkFactories.asSlicedByteSourceFactory(factory, off, len);
      suite.addTest(suiteForBytes(sliced, bytes, name + ".slice[long, long]", desc, false));

      // test a slice() of the ByteSource starting at a random offset with a length of
      // Long.MAX_VALUE
      ByteSourceFactory slicedLongMaxValue =
          SourceSinkFactories.asSlicedByteSourceFactory(factory, off, Long.MAX_VALUE);

    TestSuite suite = new TestSuite();
    suite.addTest(
        ByteSourceTester.tests(
            "Resources.asByteSource[URL]", SourceSinkFactories.urlByteSourceFactory(), true));
    suite.addTest(
        CharSourceTester.tests(
            "Resources.asCharSource[URL, Charset]",
            SourceSinkFactories.urlCharSourceFactory(),
            false));
    suite.addTestSuite(ResourcesTest.class);
    return 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(),
            false));
    suite.addTestSuite(ResourcesTest.class);
    return suite;
  }

 * creating a source or sink, such as {@link Files#asByteSource(File)}. Implementations of {@code
 * SourceSinkFactory} for common.io are found in {@link SourceSinkFactories}.
 *
 * @param <S> the source or sink type
 * @param <T> the data type (byte[] or String)
 * @author Colin Decker
 */
public interface SourceSinkFactory<S, T> {

  /**

      CharSourceFactory factory, byte[] bytes, String name, String desc, boolean slice) {
    TestSuite suite = suiteForString(factory, new String(bytes, UTF_8), name, desc);
    ByteSourceFactory byteSourceFactory = SourceSinkFactories.asByteSourceFactory(factory);
    suite.addTest(
        ByteSourceTester.suiteForBytes(
            byteSourceFactory, bytes, name + ".asByteSource[Charset]", desc, slice));
    return suite;
  }

      String name, ByteSinkFactory factory, String string, String desc) {
    byte[] bytes = string.getBytes(UTF_8);
    TestSuite suite = suiteForBytes(name, factory, desc, bytes);
    CharSinkFactory charSinkFactory = SourceSinkFactories.asCharSinkFactory(factory);
    suite.addTest(
        CharSinkTester.suiteForString(
            name + ".asCharSink[Charset]", charSinkFactory, string, desc));
    return suite;
  }

      String name, ByteSinkFactory factory, String string, String desc) {
    byte[] bytes = string.getBytes(UTF_8);
    TestSuite suite = suiteForBytes(name, factory, desc, bytes);
    CharSinkFactory charSinkFactory = SourceSinkFactories.asCharSinkFactory(factory);
    suite.addTest(
        CharSinkTester.suiteForString(
            name + ".asCharSink[Charset]", charSinkFactory, string, desc));
    return suite;
  }

      CharSourceFactory factory, byte[] bytes, String name, String desc, boolean slice) {
    TestSuite suite = suiteForString(factory, new String(bytes, UTF_8), name, desc);
    ByteSourceFactory byteSourceFactory = SourceSinkFactories.asByteSourceFactory(factory);
    suite.addTest(
        ByteSourceTester.suiteForBytes(
            byteSourceFactory, bytes, name + ".asByteSource[Charset]", desc, slice));
    return suite;
  }