return new TestStringMultisetGenerator() {
      @Override
      protected Multiset<String> create(String[] elements) {
        return HashMultiset.create(asList(elements));
      }
    };
  }

  public void testCreate() {
    Multiset<String> multiset = HashMultiset.create();
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());

        MapTestSuiteBuilder.using(
                new TestStringMapGenerator() {
                  @Override
                  protected Map<String, String> create(Entry<String, String>[] entries) {
                    Map<String, String> map = CompactLinkedHashMap.create();
                    for (Entry<String, String> entry : entries) {
                      map.put(entry.getKey(), entry.getValue());
                    }

 * Unit tests for TransportException class
 */
public class TransportExceptionTest {

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create exception with no arguments")
        void testDefaultConstructor() {
            TransportException exception = new TransportException();

            assertNotNull(exception);
            assertNull(exception.getMessage());

    SettableFuture<String> future = SettableFuture.create();
    SettableFuture<String> nested = SettableFuture.create();
    assertTrue(future.setFuture(nested));
    // Later attempts to set the future should return false.
    assertFalse(future.set("x"));
    assertFalse(future.setException(new Exception("bar")));
    assertFalse(future.setFuture(SettableFuture.create()));
    // Check that the future has been set properly.

    return new TestStringMultisetGenerator() {
      @Override
      protected Multiset<String> create(String[] elements) {
        return HashMultiset.create(asList(elements));
      }
    };
  }

  public void testCreate() {
    Multiset<String> multiset = HashMultiset.create();
    multiset.add("foo", 2);
    multiset.add("bar");
    assertEquals(3, multiset.size());

    Multiset<String> c = HashMultiset.create();
    Multiset<String> multiset = ImmutableMultiset.copyOf(c);
    assertTrue(multiset.isEmpty());
  }

  public void testCopyOf_multiset_oneElement() {
    Multiset<String> c = HashMultiset.create(asList("a"));
    Multiset<String> multiset = ImmutableMultiset.copyOf(c);
    assertEquals(HashMultiset.create(asList("a")), multiset);
  }

  private static TestStringMultisetGenerator linkedHashMultisetGenerator() {
    return new TestStringMultisetGenerator() {
      @Override
      protected Multiset<String> create(String[] elements) {
        return LinkedHashMultiset.create(asList(elements));
      }

      @Override
      public List<String> order(List<String> insertionOrder) {
        List<String> order = new ArrayList<>();

    return emptySet();
  }

  public Test testsForArrayDeque() {
    return QueueTestSuiteBuilder.using(
            new TestStringQueueGenerator() {
              @Override
              public Queue<String> create(String[] elements) {
                return new ArrayDeque<>(MinimalCollection.of(elements));
              }
            })
        .named("ArrayDeque")
        .withFeatures(

    @Override
    public List<Integer> create(Object... elements) {
      Integer[] array = new Integer[elements.length];
      int i = 0;
      for (Object e : elements) {
        array[i++] = (Integer) e;
      }
      return create(array);
    }

    /**
     * Creates a new collection containing the given elements; implement this method instead of
     * {@link #create(Object...)}.
     */

    }

    @Override
    public List<Byte> create(Object... elements) {
      Byte[] array = new Byte[elements.length];
      int i = 0;
      for (Object e : elements) {
        array[i++] = (Byte) e;
      }
      return create(array);
    }

    /**
     * Creates a new collection containing the given elements; implement this method instead of
     * {@link #create(Object...)}.
     */