import java.io.IOException;
import java.io.Reader;
import java.util.Iterator;
import javax.annotation.CheckForNull;

/**
 * A {@link Reader} that concatenates multiple readers.
 *
 * @author Bin Zhu
 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
class MultiReader extends Reader {
  private final Iterator<? extends CharSource> it;

  }

  // Returns a Readable that is *not* a Reader.
  private static Readable getChunkedReadable(String input, int chunk) {
    final Reader reader = getChunkedReader(input, chunk);
    return new Readable() {
      @Override
      public int read(CharBuffer cbuf) throws IOException {
        return reader.read(cbuf);
      }
    };
  }

  private static Reader getChunkedReader(String input, final int chunk) {

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.io.IOException;
import java.io.Reader;
import java.nio.CharBuffer;
import javax.annotation.CheckForNull;

/**
 * A {@link Reader} that reads the characters in a {@link CharSequence}. Like {@code StringReader},
 * but works with any {@link CharSequence}.
 *
 * @author Colin Decker
 */

        // of
        // InputStream.read(byte[], int, int)
        // See https://github.com/google/guava/issues/3542
        Reader reader = new StringReader(cannotDecode);
        InputStream decodingStream = encoding.decodingStream(reader);
        try {
          ByteStreams.exhaust(decodingStream);
          fail("Expected DecodingException");
        } catch (DecodingException expected) {

    }

    @Override
    public String getSinkContents() throws IOException {
      Path file = getPath();
      try (Reader reader = java.nio.file.Files.newBufferedReader(file, Charsets.UTF_8)) {
        StringBuilder builder = new StringBuilder();
        for (int c = reader.read(); c != -1; c = reader.read()) {
          builder.append((char) c);
        }
        return builder.toString();
      }
    }
  }

  }

  /**
   * Returns an {@code InputStream} that decodes base-encoded input from the specified {@code
   * Reader}. The returned stream throws a {@link DecodingException} upon decoding-specific errors.
   */
  @J2ktIncompatible
  @GwtIncompatible // Reader,InputStream
  public abstract InputStream decodingStream(Reader reader);

  /**
   * Returns a {@code ByteSource} that reads base-encoded bytes from the specified {@code

    Closeables.close(null, false);
  }

  public void testCloseQuietlyNull_inputStream() {
    Closeables.closeQuietly((InputStream) null);
  }

  public void testCloseQuietlyNull_reader() {
    Closeables.closeQuietly((Reader) null);
  }

  // Set up a closeable to expect to be closed, and optionally to throw an
  // exception.
  private void setupCloseable(boolean shouldThrow) throws IOException {

   * range set and the specified range. This is equivalent to calling {@code
   * subRangeSet(otherRange)} and testing whether the resulting range set is non-empty.
   *
   * @since 20.0
   */
  boolean intersects(Range<C> otherRange);

  /**
   * Returns {@code true} if there exists a member range in this range set which {@linkplain

 * limitations under the License.
 */

package com.google.common.io;

import static com.google.common.base.Charsets.UTF_8;

import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;

/**
 * A char source for testing that has configurable options.
 *
 * @author Colin Decker
 */
public class TestCharSource extends CharSource implements TestStreamSupplier {

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.List;
import junit.framework.TestCase;

/**
 * @param <S> the source or sink type