import java.util.Comparator;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link ComparisonChain}.
 *
 * @author Kevin Bourrillion
 */
@GwtCompatible
@NullMarked
public class ComparisonChainTest extends TestCase {
  private static final DontCompareMe DONT_COMPARE_ME = new DontCompareMe();

import com.google.common.base.Strings;
import java.util.Arrays;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for FarmHashFingerprint64.
 *
 * @author Kyle Maddison
 * @author Geoff Pike
 */
@NullUnmarked
public class FarmHashFingerprint64Test extends TestCase {

  private static final HashFunction HASH_FN = Hashing.farmHashFingerprint64();

import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;

/**
 * Unit test for {@link SignedBytes}.
 *
 * @author Kevin Bourrillion
 */
@NullMarked
@GwtCompatible
public class SignedBytesTest extends TestCase {
  private static final byte[] EMPTY = {};
  private static final byte[] ARRAY1 = {(byte) 1};

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

/**
 * Tests for {@link Synchronized#deque} and {@link Queues#synchronizedDeque}.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class SynchronizedDequeTest extends TestCase {

  protected Deque<String> create() {

import java.util.List;
import java.util.Set;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/**
 * Unit test for {@link Optional}.
 *
 * @author Kurt Alfred Kluever
 */
@NullMarked
@GwtCompatible
public final class OptionalTest extends TestCase {
  @SuppressWarnings("NullOptional")
  public void testToJavaUtil_static() {

import java.math.MathContext;
import java.math.RoundingMode;
import java.util.EnumMap;
import java.util.EnumSet;
import java.util.Map;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

@GwtIncompatible
@NullUnmarked
public class BigDecimalMathTest extends TestCase {
  private static final class RoundToDoubleTester {
    private final BigDecimal input;

   * Registers a TearDown implementor which will be run after the test proper.
   *
   * <p>In JUnit4 language, that means as an {@code @After}.
   *
   * <p>In JUnit3 language, that means during the {@link junit.framework.TestCase#tearDown()} step.
   */
  void addTearDown(TearDown tearDown);

   * Registers a TearDown implementor which will be run after the test proper.
   *
   * <p>In JUnit4 language, that means as an {@code @After}.
   *
   * <p>In JUnit3 language, that means during the {@link junit.framework.TestCase#tearDown()} step.
   */
  void addTearDown(TearDown tearDown);

import java.util.Iterator;
import java.util.List;
import java.util.Map;
import junit.framework.AssertionFailedError;
import junit.framework.TestCase;

/**
 * Unit test for {@link Helpers}.
 *
 * @author Chris Povirk
 */
@GwtCompatible
public class HelpersTest extends TestCase {
  public void testNullsBeforeB() {
    testComparator(NullsBeforeB.INSTANCE, "a", "azzzzzz", null, "b", "c");
  }

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

/**
 * Tests for {@link Synchronized#queue} and {@link Queues#synchronizedQueue}.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class SynchronizedQueueTest extends TestCase {

  protected Queue<String> create() {