import java.util.HashSet;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link AtomicLongMap}.
 *
 * @author mike nonemacher
 */
@GwtCompatible
@NullUnmarked
public class AtomicLongMapTest extends TestCase {
  private static final int ITERATIONS = 100;
  private static final int MAX_ADDEND = 100;

import java.lang.reflect.Method;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeoutException;
import junit.framework.AssertionFailedError;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * A helper for concurrency testing. One or more {@code TestThread} instances are instantiated in a

import java.util.Arrays;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit tests for {@link HashCode}.
 *
 * @author Dimitris Andreou
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class HashCodeTest extends TestCase {
  // note: asInt(), asLong() are in little endian

import com.google.common.annotations.J2ktIncompatible;
import com.google.common.math.StatsTesting.ManyValues;
import java.util.Collections;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link PairedStatsAccumulator}. This tests the stats methods for instances built with
 * {@link PairedStatsAccumulator#add}, and various error cases of that method. For tests of the

import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.AbstractQueuedSynchronizer;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/** Utilities for the AbstractFutureBenchmarks */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
final class AbstractFutureBenchmarks {
  private AbstractFutureBenchmarks() {}

import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Base class for tests for emulated {@link AbstractFuture} that allow subclasses to swap in a
 * different "source Future" for {@link AbstractFuture#setFuture} calls.
 */
@GwtCompatible
@NullUnmarked
abstract class AbstractAbstractFutureTest extends TestCase {

import com.google.common.testing.EqualsTester;
import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.After;
import org.junit.Test;

/**
 * Abstract base class for testing undirected {@link Graph} implementations defined in this package.
 */
@NullUnmarked
public abstract class AbstractStandardUndirectedGraphTest extends AbstractGraphTest {

  @After

import java.util.HashMap;
import java.util.Random;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Utf8}.
 *
 * @author Jon Perlow
 * @author Martin Buchholz
 * @author Clément Roux
 */
@GwtCompatible
@NullUnmarked
public class Utf8Test extends TestCase {

  private static final ImmutableList<String> ILL_FORMED_STRINGS;

  static {

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * Test case for {@link ConcurrentHashMultiset}.
 *
 * @author Cliff L. Biffle
 * @author mike nonemacher
 */
@NullUnmarked
public class ConcurrentHashMultisetTest extends TestCase {

  @AndroidIncompatible // test-suite builders
  public static Test suite() {

import java.util.Arrays;
import java.util.EnumSet;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for the default implementations of {@code ByteSource} methods.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class ByteSourceTest extends IoTestCase {