verifySetContents(set, EMPTY_COLLECTION);
  }

  public void testNewHashSetWithExpectedSizeLarge() {
    HashSet<Integer> set = Sets.newHashSetWithExpectedSize(1000);
    verifySetContents(set, EMPTY_COLLECTION);
  }

  public void testNewHashSetFromIterator() {
    HashSet<Integer> set = Sets.newHashSet(SOME_COLLECTION.iterator());
    verifySetContents(set, SOME_COLLECTION);

              }
            },
            executor);
    assertThat(getFinalValue(closingFuture)).isEqualTo(mockCloseable);
    waitUntilClosed(closingFuture);
    verify(mockCloseable, timeout(1000)).close();
  }

  /**
   * Marks the given step final, waits for it to be finished, and returns the value.
   *
   * @throws ExecutionException if the step failed

              }
            },
            executor);
    assertThat(getFinalValue(closingFuture)).isEqualTo(mockCloseable);
    waitUntilClosed(closingFuture);
    verify(mockCloseable, timeout(1000)).close();
  }

  /**
   * Marks the given step final, waits for it to be finished, and returns the value.
   *
   * @throws ExecutionException if the step failed