/**
 * 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");
  }

  public void testIsEmpty_iterable() {
    List<Object> list = new ArrayList<>();
    assertEmpty(list);
    assertEmpty(
        new Iterable<Object>() {
          @Override

    public void testAaa_GetStaticFieldValue() throws Exception {
        final BeanDesc beanDesc = new BeanDescImpl(MyBean.class);
        final FieldDesc aaa = beanDesc.getFieldDesc("aaa");
        aaa.getStaticFieldValue();
    }

    /**
     * @throws Exception
     */
    @Test(expected = FieldNotStaticRuntimeException.class)
    public void testAaa_SetStaticFieldValue() throws Exception {

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MapToStringTester<K, V> extends AbstractMapTester<K, V> {
  public void testToString_minimal() {
    assertNotNull("toString() should not return null", getMap().toString());
  }

  @CollectionSize.Require(ZERO)
  @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
  public void testToString_size0() {
    assertEquals("emptyMap.toString should return {}", "{}", getMap().toString());
  }

  private Flushable mockFlushable;

  public void testFlush_clean() throws IOException {
    // make sure that no exception is thrown regardless of value of
    // 'swallowException' when the mock does not throw an exception.
    setupFlushable(false);
    doFlush(mockFlushable, false, false);

    setupFlushable(false);
    doFlush(mockFlushable, true, false);
  }

  public void testFlush_flushableWithEatenException() throws IOException {

  // Set stack trace to be used for potential async error reporting.
  virtual void SetStackTrace(ManagedStackTrace stack_trace) = 0;

  virtual const tensorflow::AbstractOpAttrs* GetOpAttrs() const = 0;
  virtual void AddAttrs(const AbstractOpAttrs* op_attrs) = 0;

  virtual void SetCancellationManager(
      CancellationManager* cancellation_manager) = 0;

            )
        .inOrder();
  }

  public void testLegacyAsyncDispatcher() {
    dispatcher = Dispatcher.legacyAsync();

    final CyclicBarrier barrier = new CyclicBarrier(2);
    final CountDownLatch latch = new CountDownLatch(2);

    new Thread(
            new Runnable() {
              @Override
              public void run() {
                try {
                  barrier.await();

                .pluginTypes("org.codelibs.opensearch.extension.ExtensionPlugin"));
        runner.ensureYellow();
    }

    @AfterClass
    public static void afterClass() throws Exception {
        runner.close();
        runner.clean();
    }

    @Before
    public void before() throws Exception {
        try {
            runner.admin().indices().prepareDelete("_all").execute().actionGet();

  }

  // null parameters test

  public void testNullParameters() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    CacheLoader<Object, Object> loader = identityLoader();
    tester.testAllPublicInstanceMethods(makeCache(createCacheBuilder(), loader));
  }

  // stats tests

  public void testStats() {

  }

  // null parameters test

  public void testNullParameters() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    CacheLoader<Object, Object> loader = identityLoader();
    tester.testAllPublicInstanceMethods(makeCache(createCacheBuilder(), loader));
  }

  // stats tests

  public void testStats() {

   * @throws IllegalArgumentException if {@code permitsPerSecond} is negative or zero
   */
  public final void setRate(double permitsPerSecond) {
    checkArgument(permitsPerSecond > 0.0, "rate must be positive");
    synchronized (mutex()) {
      doSetRate(permitsPerSecond, stopwatch.readMicros());
    }
  }

  abstract void doSetRate(double permitsPerSecond, long nowMicros);

  /**