* we change the rate.
   */
  public void testWeNeverGetABurstMoreThanOneSec() {
    RateLimiter limiter = RateLimiter.create(1.0, stopwatch);
    int[] rates = {1000, 1, 10, 1000000, 10, 1};
    for (int rate : rates) {
      int oneSecWorthOfWork = rate;
      stopwatch.sleepMillis(rate * 1000);
      limiter.setRate(rate);

        n -> n * Math.log(n),
        ImmutableList.of(QueryOp.MAP_GET));
  }

  /** All the ways to create an ImmutableMap. */
  enum ConstructionPathway implements Construction<Map<Object, Object>> {
    COPY_OF_MAP {
      @Override
      public Map<Object, Object> create(List<?> keys) {
        Map<Object, Object> sourceMap = new LinkedHashMap<>();
        for (Object k : keys) {

                        mapEntry(Range.closed(20, 22), "umbrella"));
                  }

                  @Override
                  public Map<Range<Integer>, String> create(Object... elements) {
                    RangeMap<Integer, String> rangeMap = TreeRangeMap.create();
                    for (Object o : elements) {
                      @SuppressWarnings("unchecked")

        BiMapTestSuiteBuilder.using(
                new TestStringBiMapGenerator() {
                  @Override
                  protected BiMap<String, String> create(Entry<String, String>[] entries) {
                    BiMap<String, String> bimap = HashBiMap.create(entries.length);
                    for (Entry<String, String> entry : entries) {
                      checkArgument(!bimap.containsKey(entry.getKey()));

  }

  public Test testsForCheckedQueue() {
    return QueueTestSuiteBuilder.using(
            new TestStringQueueGenerator() {
              @Override
              public Queue<String> create(String[] elements) {
                Queue<String> queue = new LinkedList<>(MinimalCollection.of(elements));
                return Collections.checkedQueue(queue, String.class);
              }
            })

    suite.addTest(
        SetTestSuiteBuilder.using(
                new TestStringSetGenerator() {
                  @Override
                  protected Set<String> create(String[] elements) {
                    return CompactHashSet.create(Arrays.asList(elements));
                  }
                })
            .named("CompactHashSet")
            .withFeatures(allFeatures)
            .createTestSuite());

    return new TestStringMultisetGenerator() {
      @Override
      protected Multiset<String> create(String[] elements) {
        return HashMultiset.create(asList(elements));
      }
    };
  }

  public void testCreate() {
    Multiset<String> multiset = HashMultiset.create();
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());

    @Override
    protected Map<String, String> create(Entry<String, String>[] entries) {
      return ImmutableMap.copyOf(Arrays.asList(entries));
    }
  }

  public static class ImmutableMapUnhashableValuesGenerator
      extends TestUnhashableCollectionGenerator<Collection<UnhashableObject>> {

    @Override
    public Collection<UnhashableObject> create(UnhashableObject[] elements) {

    }

    @Override
    public List<Long> create(Object... elements) {
      Long[] array = new Long[elements.length];
      int i = 0;
      for (Object e : elements) {
        array[i++] = (Long) e;
      }
      return create(array);
    }

    /**
     * Creates a new collection containing the given elements; implement this method instead of
     * {@link #create(Object...)}.
     */

    this.exceptions = Collections.unmodifiableCollection(temp);
  }

  /** See {@link #create(Collection)}. */
  static RuntimeException create(Throwable... exceptions) {
    ArrayList<Throwable> temp = new ArrayList<>(Arrays.asList(exceptions));
    return create(temp);
  }

  /**
   * Given a collection of exceptions, returns a {@link RuntimeException}, with the following rules:
   *