assertThat(setToTest).isEqualTo(copyOfWrappedSet);

    // invalidate setToTest
    wrappedSet.remove(1);
    // sanity check on update of wrappedSet
    assertThat(wrappedSet).isNotEqualTo(copyOfWrappedSet);

    ImmutableSet<Integer> copyOfModifiedSet = ImmutableSet.copyOf(wrappedSet); // {2,3}
    // sanity check on construction of copyOfModifiedSet
    assertThat(wrappedSet).isEqualTo(copyOfModifiedSet);

    assertEquals(c, ImmutableSortedMultiset.of("a", "b", "a"));
    assertEquals(c, ImmutableSortedMultiset.of("a", "a", "b"));
    assertThat(c).isNotEqualTo(ImmutableSortedMultiset.of("a", "b"));
    assertThat(c).isNotEqualTo(ImmutableSortedMultiset.of("a", "b", "c", "d"));
  }

  public void testIterationOrder() {
    Collection<String> c = ImmutableSortedMultiset.of("a", "b", "a");

    Thread thread3 = threadFactory2.newThread(monitoredRunnable);
    checkThreadPoolName(thread3, 1);
    assertThat(thread2.getName().substring(0, thread.getName().lastIndexOf('-')))
        .isNotEqualTo(thread3.getName().substring(0, thread.getName().lastIndexOf('-')));
  }

  private static void checkThreadPoolName(Thread thread, int threadId) {
    assertThat(thread.getName()).matches("^pool-\\d+-thread-" + threadId + "$");

    URL resource = getClass().getResource("testdata/i18n.txt");
    assertThat(Resources.toString(resource, UTF_8)).isEqualTo(I18N);
    assertThat(Resources.toString(resource, US_ASCII)).isNotEqualTo(I18N);
  }

  public void testToByteArray() throws IOException {
    URL resource = getClass().getResource("testdata/i18n.txt");
    assertThat(Resources.toByteArray(resource)).isEqualTo(I18N.getBytes(UTF_8));
  }

    Thread thread3 = threadFactory2.newThread(monitoredRunnable);
    checkThreadPoolName(thread3, 1);
    assertThat(thread2.getName().substring(0, thread.getName().lastIndexOf('-')))
        .isNotEqualTo(thread3.getName().substring(0, thread.getName().lastIndexOf('-')));
  }

  private static void checkThreadPoolName(Thread thread, int threadId) {
    assertThat(thread.getName()).matches("^pool-\\d+-thread-" + threadId + "$");

    Executor sequential1 = newSequentialExecutor(delegate);
    Executor sequential2 = newSequentialExecutor(delegate);
    assertThat(sequential1.toString()).contains("theDelegate");
    assertThat(sequential1.toString()).isNotEqualTo(sequential2.toString());
    String[] whileRunningToString = new String[1];
    sequential1.execute(
        new Runnable() {
          @Override
          public void run() {

    @SuppressWarnings("unchecked")
    Class<TestEnum> shadowTestEnum =
        (Class<TestEnum>) Class.forName(TestEnum.class.getName(), false, shadowLoader);
    assertThat(shadowTestEnum).isNotEqualTo(TestEnum.class);
    // We can't write Set<TestEnum> because that is a Set of the TestEnum from the original
    // ClassLoader.
    Set<Object> shadowConstants = new HashSet<>();

    @SuppressWarnings("unchecked")
    Class<TestEnum> shadowTestEnum =
        (Class<TestEnum>) Class.forName(TestEnum.class.getName(), false, shadowLoader);
    assertThat(shadowTestEnum).isNotEqualTo(TestEnum.class);
    // We can't write Set<TestEnum> because that is a Set of the TestEnum from the original
    // ClassLoader.
    Set<Object> shadowConstants = new HashSet<>();

    assertThat(immutableNetwork).isNotInstanceOf(MutableNetwork.class);
    assertThat(immutableNetwork).isEqualTo(mutableNetwork);

    mutableNetwork.addNode("B");
    assertThat(immutableNetwork).isNotEqualTo(mutableNetwork);
  }

  @Test
  public void copyOfImmutableNetwork_optimized() {
    Network<String, String> network1 =
        ImmutableNetwork.copyOf(NetworkBuilder.directed().<String, String>build());

    Executor sequential1 = newSequentialExecutor(delegate);
    Executor sequential2 = newSequentialExecutor(delegate);
    assertThat(sequential1.toString()).contains("theDelegate");
    assertThat(sequential1.toString()).isNotEqualTo(sequential2.toString());
    String[] whileRunningToString = new String[1];
    sequential1.execute(
        new Runnable() {
          @Override
          public void run() {