.isAtMost(
              2
                  * constructionAsymptotics.applyAsDouble(largeSize)
                  / constructionAsymptotics.applyAsDouble(smallSize));
      // allow up to 2x wobble in the constant factors
    }
  }

  public void testResistsHashFloodingOnQuery() {
    CallsCounter smallCounter = new CallsCounter();
    List<CountsHashCodeAndEquals> haveSameHashesSmall = createAdversarialInput(10, smallCounter);

  }

  public void testBuildMutateBuild() {
    ThreadFactory factory1 = builder.setPriority(1).build();
    assertEquals(1, factory1.newThread(monitoredRunnable).getPriority());

    ThreadFactory factory2 = builder.setPriority(2).build();
    assertEquals(1, factory1.newThread(monitoredRunnable).getPriority());
    assertEquals(2, factory2.newThread(monitoredRunnable).getPriority());
  }

  }

  public void testBuildMutateBuild() {
    ThreadFactory factory1 = builder.setPriority(1).build();
    assertEquals(1, factory1.newThread(monitoredRunnable).getPriority());

    ThreadFactory factory2 = builder.setPriority(2).build();
    assertEquals(1, factory1.newThread(monitoredRunnable).getPriority());
    assertEquals(2, factory2.newThread(monitoredRunnable).getPriority());
  }

    super.setUp();
    CycleDetectingLockFactory factory = CycleDetectingLockFactory.newInstance(Policies.THROW);
    lockA = factory.newReentrantLock("LockA");
    lockB = factory.newReentrantLock("LockB");
    lockC = factory.newReentrantLock("LockC");
    ReentrantReadWriteLock readWriteLockA = factory.newReentrantReadWriteLock("ReadWriteA");
    ReentrantReadWriteLock readWriteLockB = factory.newReentrantReadWriteLock("ReadWriteB");

    super.setUp();
    CycleDetectingLockFactory factory = CycleDetectingLockFactory.newInstance(Policies.THROW);
    lockA = factory.newReentrantLock("LockA");
    lockB = factory.newReentrantLock("LockB");
    lockC = factory.newReentrantLock("LockC");
    ReentrantReadWriteLock readWriteLockA = factory.newReentrantReadWriteLock("ReadWriteA");
    ReentrantReadWriteLock readWriteLockB = factory.newReentrantReadWriteLock("ReadWriteB");

      throws InvocationTargetException, IllegalAccessException {
    T returnValue = factory.invoke(null, args.toArray());
    if (returnValue == null) {
      Assert.assertTrue(
          factory + " returns null but it's not annotated with @Nullable", isNullable(factory));
    }
    return returnValue;
  }

  /**

   *       {@link NullPointerException}.
   *   <li>If there is any visible constructor or visible static factory method declared by the
   *       class, all visible instance methods will be checked too using the instance created by
   *       invoking the constructor or static factory method.
   *   <li>If the constructor or factory method used to construct instance takes a parameter that

Veamos todo esto con un ejemplo.

Imagina que desarrollas una aplicación que permite crear facturas.

Estas facturas tendrán un `id`, `title` (opcional), `customer` y `total`.

El usuario de tu API (un desarrollador externo) creará una factura en tu API con un request POST.

Luego tu API (imaginemos):

* Enviará la factura a algún cliente del desarrollador externo.
* Recogerá el dinero.

  static TestSuite tests(String name, ByteSourceFactory factory, boolean testAsCharSource) {
    TestSuite suite = new TestSuite(name);
    for (Entry<String, String> entry : TEST_STRINGS.entrySet()) {
      if (testAsCharSource) {
        suite.addTest(suiteForString(factory, entry.getValue(), name, entry.getKey()));
      } else {
        suite.addTest(
            suiteForBytes(factory, entry.getValue().getBytes(UTF_8), name, entry.getKey(), true));

    // The ubiquitous EnumLinkedListMultimap
    CountingSupplier<Queue<Integer>> factory = new QueueSupplier();

    Map<Color, Collection<Integer>> map = Maps.newEnumMap(Color.class);
    Multimap<Color, Integer> multimap = Multimaps.newMultimap(map, factory);
    assertEquals(0, factory.count);
    multimap.putAll(Color.BLUE, asList(3, 1, 4));
    assertEquals(1, factory.count);
    multimap.putAll(Color.RED, asList(2, 7, 1, 8));