{
      MockExecutor mock = new MockExecutor();
      TestExecutor testExecutor = new TestExecutor(mock);
      String s = testExecutor.invokeAny(tasks);
      assertEquals("ran0", s);
      mock.assertLastMethodCalled("invokeAny");
    }
    {
      MockExecutor mock = new MockExecutor();
      TimeUnit unit = TimeUnit.SECONDS;
      long timeout = 5;

   * convenience for creating an empty set and then calling {@link Iterators#addAll}.
   *
   * <p><b>Note:</b> if mutability is not required and the elements are non-null, use {@link
   * ImmutableSet#copyOf(Iterator)} instead.
   *
   * <p><b>Note:</b> if {@code E} is an {@link Enum} type, you should create an {@link EnumSet}
   * instead.
   *
   * <p>Overall, this method is not very useful and will likely be deprecated in the future.

   * (determining which scenarios are applicable to which methods and what the outcome should be)
   * takes place in {@link #addTests(TestSuite, Method)}.
   */
  private enum Scenario {
    SATISFIED_AND_UNOCCUPIED_BEFORE_ENTERING,
    UNSATISFIED_AND_UNOCCUPIED_BEFORE_ENTERING,
    SATISFIED_AND_OCCUPIED_BEFORE_ENTERING,
    SATISFIED_UNOCCUPIED_AND_INTERRUPTED_BEFORE_ENTERING,

    SATISFIED_BEFORE_WAITING,

   * <p>Thus, two value graphs A and B are equal if <b>all</b> of the following are true:
   *
   * <ul>
   *   <li>A and B have equal {@link #isDirected() directedness}.
   *   <li>A and B have equal {@link #nodes() node sets}.
   *   <li>A and B have equal {@link #edges() edge sets}.
   *   <li>The {@link #edgeValueOrDefault(N, N, V) value} of a given edge is the same in both A and
   *       B.
   * </ul>
   *

Guava is a set of core Java libraries from Google that includes new collection
types (such as multimap and multiset), immutable collections, a graph library,
and utilities for concurrency, I/O, hashing, primitives, strings, and more! It
is widely used on most Java projects within Google, and widely used by many
other companies as well.



Guava comes in two flavors:

   * (NCR). However, horizontal tab {@code '\t'}, line feed {@code '\n'} and carriage return {@code
   * '\r'} are escaped to a corresponding NCR {@code "	"}, {@code "
"}, and {@code "
"}
   * respectively. Any other non-ASCII characters appearing in the input will be preserved in the
   * output.
   *
   * <p>This escaper does not treat surrogate pairs specially and does not perform Unicode
   * validation on its input.
   */

 * {@link #entrySet} is similar but contains {@link Entry Multiset.Entry} instances, each providing
 * both a distinct element and the count of that element.
 *
 * <p>In addition to these required methods, implementations of {@code Multiset} are expected to
 * provide two {@code static} creation methods: {@code create()}, returning an empty multiset, and

    // and friends, and that we will eventually expect to see garbage-collected. The assumption
    // is that the ClassLoader of this test is a URLClassLoader, and that it loads FRQ itself
    // rather than delegating to a parent ClassLoader. If this assumption is violated the test will
    // fail and will need to be rewritten.

    Class<?> frqC = FinalizableReferenceQueue.class;

   *   <li>subtasks are run with the thread uninterrupted and interrupts received during execution
   *       of a task are ignored.
   * </ol>
   *
   * <p>{@code RuntimeException}s thrown by tasks are simply logged and the executor keeps trucking.
   * If an {@code Error} is thrown, the error will propagate and execution will stop until the next
   * time a task is submitted.
   *

   * ordering of all views in the returned table. Note that some views of the original table and the
   * copied table may have different iteration orders. For more control over the ordering, create a
   * {@link Builder} and call {@link Builder#orderRowsBy}, {@link Builder#orderColumnsBy}, and
   * {@link Builder#putAll}
   *