import java.io.ByteArrayOutputStream;
import junit.framework.TestCase;

/**
 * Tests for {@link HashingOutputStream}.
 *
 * @author Zoe Piepmeier
 */
public class HashingOutputStreamTest extends TestCase {
  private Hasher hasher;
  private HashFunction hashFunction;
  private final ByteArrayOutputStream buffer = new ByteArrayOutputStream();

  @SuppressWarnings("DoNotMock")
  @Override

import junit.framework.AssertionFailedError;
import junit.framework.TestCase;

/** Unit test for {@link com.google.common.base.Verify}. */
@GwtCompatible(emulated = true)
public class VerifyTest extends TestCase {
  public void testVerify_simple_success() {
    verify(true);
  }

  public void testVerify_simple_failure() {
    assertThrows(VerifyException.class, () -> verify(false));
  }

import com.google.common.collect.ImmutableSet;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;

/** @author Colin Decker */
public class TestInputStream extends FilterInputStream {

  private final ImmutableSet<TestOption> options;
  private boolean closed;

  public TestInputStream(InputStream in, TestOption... options) throws IOException {
    this(in, Arrays.asList(options));

 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
final class ImmutableMapValues<K, V> extends ImmutableCollection<V> {
  private final ImmutableMap<K, V> map;

  ImmutableMapValues(ImmutableMap<K, V> map) {
    this.map = map;
  }

  @Override
  public int size() {
    return map.size();
  }

  }

  /** {@link RemovalListener} that adds all {@link RemovalNotification} objects to a queue. */
  @GwtIncompatible // ConcurrentLinkedQueue
  static class QueuingRemovalListener<K, V> extends ConcurrentLinkedQueue<RemovalNotification<K, V>>
      implements RemovalListener<K, V> {

    @Override
    public void onRemoval(RemovalNotification<K, V> notification) {
      add(notification);
    }
  }

 */
@GwtCompatible
@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class CollectionClearTester<E> extends AbstractCollectionTester<E> {
  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testClear() {
    collection.clear();
    assertTrue("After clear(), a collection should be empty.", collection.isEmpty());

 *
 * @author Jesse Wilson
 * @author Kevin Bourrillion
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
final class ImmutableMapKeySet<K, V> extends IndexedImmutableSet<K> {
  private final ImmutableMap<K, V> map;

  ImmutableMapKeySet(ImmutableMap<K, V> map) {
    this.map = map;
  }

  @Override
  public int size() {
    return map.size();
  }

/**
 * Skeletal implementation of {@link ImmutableSortedSet#descendingSet()}.
 *
 * @author Louis Wasserman
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
final class DescendingImmutableSortedSet<E> extends ImmutableSortedSet<E> {
  private final ImmutableSortedSet<E> forward;

  DescendingImmutableSortedSet(ImmutableSortedSet<E> forward) {
    super(Ordering.from(forward.comparator()).reverse());
    this.forward = forward;

import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link Tables}.
 *
 * @author Jared Levy
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public class TablesTest extends TestCase {
  @GwtIncompatible // SerializableTester
  public void testImmutableEntrySerialization() {
    Cell<String, Integer, Character> entry = immutableCell("foo", 1, 'a');
    SerializableTester.reserializeAndAssert(entry);

import java.io.Closeable;
import java.util.concurrent.ExecutionException;

/** Tests for {@link ClosingFuture} that exercise {@link ClosingFuture#finishToFuture()}. */
public class ClosingFutureFinishToFutureTest extends AbstractClosingFutureTest {
  public void testFinishToFuture_throwsIfCalledTwice() throws Exception {
    ClosingFuture<Closeable> closingFuture =
        ClosingFuture.submit(
            new ClosingCallable<Closeable>() {