/**
 * ReactorManager - unused
 */
@Deprecated
public class ReactorManager {
    public static final String FAIL_FAST = "fail-fast";

    public static final String FAIL_AT_END = "fail-at-end";

    public static final String FAIL_NEVER = "fail-never";

    public static final String MAKE_MODE = "make";

    public static final String MAKE_DEPENDENTS_MODE = "make-dependents";

  public static void assertMapEntryIsUnmodifiable(Entry<?, ?> entry) {
    try {
      // fine because the call is going to fail without modifying the entry
      @SuppressWarnings("unchecked")
      Entry<?, @Nullable Object> nullableValueEntry = (Entry<?, @Nullable Object>) entry;
      nullableValueEntry.setValue(null);
      fail("setValue on unmodifiable Map.Entry succeeded");
    } catch (UnsupportedOperationException expected) {
    }
  }

    expectAdded(e3());
  }

  @MapFeature.Require({FAILS_FAST_ON_CONCURRENT_MODIFICATION, SUPPORTS_PUT})
  @CollectionSize.Require(absent = ZERO)
  public void testPutAbsentConcurrentWithEntrySetIteration() {
    try {
      Iterator<Entry<K, V>> iterator = getMap().entrySet().iterator();
      put(e3());
      iterator.next();
      fail("Expected ConcurrentModificationException");

      equalsTester.addEqualityGroup((Object) null);
      fail("Should fail on null reference");
    } catch (NullPointerException e) {
    }
  }

  /** Test equalObjects after adding multiple instances at once with a null */
  public void testAddTwoEqualObjectsAtOnceWithNull() {
    try {
      equalsTester.addEqualityGroup(reference, equalObject1, null);
      fail("Should fail on null equal object");
    } catch (NullPointerException e) {

    try {
      getList().set(-1, e3());
      fail("set(-1) should throw IndexOutOfBoundsException");
    } catch (IndexOutOfBoundsException expected) {
    }
    expectUnchanged();
  }

  @ListFeature.Require(SUPPORTS_SET)
  public void testSet_indexTooHigh() {
    int index = getNumElements();
    try {
      getList().set(index, e3());
      fail("set(size) should throw IndexOutOfBoundsException");

   * message passed to a later invocation of {@code fail()}, like "setCount should throw
   * UnsupportedOperationException."
   */
  abstract void setCountNoCheckReturnValue(E element, int count);

  private void assertSetCountIncreasingFailure(E element, int count) {
    try {
      setCountNoCheckReturnValue(element, count);
      fail("a call to multiset.setCount() to increase an element's count should throw");

   * message passed to a later invocation of {@code fail()}, like "setCount should throw
   * UnsupportedOperationException."
   */
  abstract void setCountNoCheckReturnValue(E element, int count);

  private void assertSetCountIncreasingFailure(E element, int count) {
    try {
      setCountNoCheckReturnValue(element, count);
      fail("a call to multiset.setCount() to increase an element's count should throw");

      Preconditions.checkArgument(false);
      fail("no exception thrown");
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testCheckArgument_simpleMessage_success() {
    Preconditions.checkArgument(true, IGNORE_ME);
  }

  public void testCheckArgument_simpleMessage_failure() {
    try {
      Preconditions.checkArgument(false, new Message());
      fail("no exception thrown");

    List<String> list = Lists.newArrayList("a", "b", "c");
    FluentIterable<String> tail = FluentIterable.from(list).skip(2);
    list.subList(0, 2).clear();
    assertThat(tail).isEmpty();
  }

  public void testSkip_illegalArgument() {
    try {
      FluentIterable.from(asList("a", "b", "c")).skip(-1);
      fail("Skipping negative number of elements should throw IllegalArgumentException.");

    List<String> list = newArrayList("a", "b", "c");
    Iterable<String> tail = skip(list, 2);
    list.subList(0, 2).clear();
    assertTrue(Iterables.isEmpty(tail));
  }

  public void testSkip_illegalArgument() {
    List<String> list = newArrayList("a", "b", "c");
    try {
      skip(list, -1);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }