@Override
            public Integer call() throws Exception {
              runLatch.countDown();
              taskLatch.await();
              if (throwException) {
                throw new IllegalStateException("Fail");
              }
              return 25;
            }
          });

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    exec = Executors.newCachedThreadPool();

            @Override
            public Integer call() throws Exception {
              runLatch.countDown();
              taskLatch.await();
              if (throwException) {
                throw new IllegalStateException("Fail");
              }
              return 25;
            }
          });

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    exec = Executors.newCachedThreadPool();

    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1AdjacentNodes::size));
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1Predecessors::size));
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1Successors::size));
    assertNodeRemovedFromGraphErrorMessage(

    } catch (IllegalStateException expected) {
    }
  }

  public void testCheckState_simpleMessage_success() {
    Preconditions.checkState(true, IGNORE_ME);
  }

  public void testCheckState_simpleMessage_failure() {
    try {
      Preconditions.checkState(false, new Message());
      fail("no exception thrown");
    } catch (IllegalStateException expected) {

   *
   * <p>If the dataset contains any non-finite values ({@link Double#POSITIVE_INFINITY}, {@link
   * Double#NEGATIVE_INFINITY}, or {@link Double#NaN}) then the result is {@link Double#NaN}.
   *
   * @throws IllegalStateException if the dataset is empty
   */
  public double populationCovariance() {
    checkState(count() != 0);
    return sumOfProductsOfDeltas / count();
  }

  /**

          executor);
      fail();
    } catch (IllegalStateException expected2) {
    }
    try {
      ClosingFuture.whenAllComplete(asList(closingFuture));
      fail();
    } catch (IllegalStateException expected1) {
    }
    try {
      ClosingFuture.whenAllSucceed(asList(closingFuture));
      fail();
    } catch (IllegalStateException expected) {
    }
  }

              }
            },
            executor);
    closingFuture.finishToValueAndCloser(
        new NoOpValueAndCloserConsumer<>(), finishToValueAndCloserExecutor);
    assertThrows(
        IllegalStateException.class,
        () ->
            closingFuture.finishToValueAndCloser(
                new NoOpValueAndCloserConsumer<>(), finishToValueAndCloserExecutor));
  }

      assertTrue(hp.hasPort());
      assertEquals(expectPort, hp.getPort());
    } else {
      assertFalse(hp.hasPort());
      try {
        hp.getPort();
        fail("Expected IllegalStateException");
      } catch (IllegalStateException expected) {
      }
    }
    assertEquals(expectHost, hp.getHost());

    // Check the post-withDefaultPort() instance (if any).
    if (!badDefaultPort) {
      try {

    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1AdjacentNodes::size));
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1Predecessors::size));
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1Successors::size));
    assertNodeRemovedFromGraphErrorMessage(

      }
    }
    return suite;
  }

  /** Throw {@link IllegalStateException} if {@link #createTestSuite()} can't be called yet. */
  protected void checkCanCreate() {
    if (subjectGenerator == null) {
      throw new IllegalStateException("Call using() before createTestSuite().");
    }
    if (name == null) {
      throw new IllegalStateException("Call named() before createTestSuite().");
    }