import javax.crypto.spec.SecretKeySpec;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;
import sun.security.jca.ProviderList;
import sun.security.jca.Providers;

/**
 * Tests for the MacHashFunction.
 *
 * @author Kurt Alfred Kluever
 */
@NullUnmarked
public class MacHashFunctionTest extends TestCase {

import java.io.IOException;
import java.net.URL;
import java.util.Iterator;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link Files#simplifyPath}.
 *
 * @author Pablo Bellver
 */
@NullUnmarked
public class FilesSimplifyPathTest extends TestCase {

  public void testSimplifyEmptyString() {
    assertEquals(".", simplifyPath(""));
  }

import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.jspecify.annotations.Nullable;

/**
 * Tests for {@link Queues}.
 *
 * @author Dimitris Andreou
 */
@NullUnmarked
public class QueuesTest extends TestCase {
  /*
   * All the following tests relate to BlockingQueue methods in Queues.
   */

import java.util.stream.Collector;
import java.util.stream.Stream;
import junit.framework.TestCase;
import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;

/** Unit tests for {@link TableCollectors}. */
@GwtCompatible
@NullMarked
public class TableCollectorsTest extends TestCase {
  public void testToImmutableTable() {

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

/**
 * Tests for {@code EnumBiMap}.
 *
 * @author Mike Bostock
 * @author Jared Levy
 */
@J2ktIncompatible // EnumBimap
@GwtCompatible
@NullMarked
public class EnumBiMapTest extends TestCase {
  private enum Currency {
    DOLLAR,
    FRANC,
    PESO,

import java.io.Serializable;
import java.util.Comparator;
import java.util.List;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

@AndroidIncompatible // lots of failures, possibly some related to bad equals() implementations?
@NullUnmarked
public class TypeTokenSubtypeTest extends TestCase {

  public void testOwnerTypeSubtypes() throws Exception {
    new OwnerTypeSubtypingTests().testAllDeclarations();

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

/**
 * Collection tests for {@link Table} implementations.
 *
 * @author Jared Levy
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
public class TableCollectionTest extends TestCase {

  @J2ktIncompatible

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

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

import java.util.Locale;
import java.util.Random;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.mockito.Mockito;

/**
 * Tests for RateLimiter.
 *
 * @author Dimitris Andreou
 */
@NullUnmarked
public class RateLimiterTest extends TestCase {
  private static final double EPSILON = 1e-8;

  private final FakeStopwatch stopwatch = new FakeStopwatch();

import java.util.Locale;
import java.util.Random;
import java.util.concurrent.TimeUnit;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;
import org.mockito.Mockito;

/**
 * Tests for RateLimiter.
 *
 * @author Dimitris Andreou
 */
@NullUnmarked
public class RateLimiterTest extends TestCase {
  private static final double EPSILON = 1e-8;

  private final FakeStopwatch stopwatch = new FakeStopwatch();