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

/**
 * Unit tests for {@link EqualsTester}.
 *
 * @author Jim McMaster
 */
@GwtCompatible
@SuppressWarnings("MissingTestCall")
@NullUnmarked
public class EqualsTesterTest extends TestCase {
  private ValidTestObject reference;

import java.nio.ByteOrder;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link PairedStats}. This tests instances created by {@link
 * PairedStatsAccumulator#snapshot}.
 *
 * @author Pete Gillin
 */
@NullUnmarked
@J2ktIncompatible
@GwtIncompatible
public class PairedStatsTest extends TestCase {

  public void testCount() {

import com.google.common.testing.NullPointerTester;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;

/**
 * Unit test for {@link Strings}.
 *
 * @author Kevin Bourrillion
 */
@NullMarked
@GwtCompatible
public class StringsTest extends TestCase {
  public void testNullToEmpty() {
    assertThat(Strings.nullToEmpty(null)).isEqualTo("");

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link Closer}.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class CloserTest extends TestCase {

  private TestSuppressor suppressor;

  @Override
  protected void setUp() throws Exception {

import java.nio.ByteOrder;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link PairedStats}. This tests instances created by {@link
 * PairedStatsAccumulator#snapshot}.
 *
 * @author Pete Gillin
 */
@NullUnmarked
@J2ktIncompatible
@GwtIncompatible
public class PairedStatsTest extends TestCase {

  public void testCount() {

import java.util.concurrent.TimeoutException;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit test for {@link AbstractExecutionThreadService}.
 *
 * @author Jesse Wilson
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class AbstractExecutionThreadServiceTest extends TestCase {

  private final TearDownStack tearDownStack = new TearDownStack(true);

import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests {@link SequentialExecutor}.
 *
 * @author JJ Furman
 */
@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class SequentialExecutorTest extends TestCase {

  private static class FakeExecutor implements Executor {

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

/**
 * Unit tests for {@code LinkedHashMultimap}.
 *
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public class LinkedHashMultimapTest extends TestCase {

  @J2ktIncompatible
  @GwtIncompatible // suite

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

import java.util.Collection;
import java.util.Set;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import org.jspecify.annotations.NullUnmarked;

/**
 * @author Gregory Kick
 */
@GwtCompatible
@NullUnmarked
public class ContiguousSetTest extends TestCase {
  private static final DiscreteDomain<Integer> NOT_EQUAL_TO_INTEGERS =
      new DiscreteDomain<Integer>() {