suite.addTest(testsForVector());
    return suite;
  }

  protected Collection<Method> suppressForEmptyList() {
    return emptySet();
  }

  protected Collection<Method> suppressForSingletonList() {
    return emptySet();
  }

  protected Collection<Method> suppressForArraysAsList() {
    return emptySet();
  }

  protected Collection<Method> suppressForArrayList() {
    return emptySet();
  }

    suite.addTest(testsForVector());
    return suite;
  }

  protected Collection<Method> suppressForEmptyList() {
    return emptySet();
  }

  protected Collection<Method> suppressForSingletonList() {
    return emptySet();
  }

  protected Collection<Method> suppressForArraysAsList() {
    return emptySet();
  }

  protected Collection<Method> suppressForArrayList() {
    return emptySet();
  }

  public void testToArray_noArgs() {
    Object[] array = collection.toArray();
    expectArrayContentsAnyOrder(createSamplesArray(), array);
  }

  /**
   * {@link Collection#toArray(Object[])} says: "Note that {@code toArray(new Object[0])} is
   * identical in function to {@code toArray()}."
   *
   * <p>For maximum effect, the collection under test should be created from an element array of a

    final OneSizeTestContainerGenerator<Collection<E>, E> gen;

    private ReserializedCollectionGenerator(OneSizeTestContainerGenerator<Collection<E>, E> gen) {
      this.gen = gen;
    }

    @Override
    public SampleElements<E> samples() {
      return gen.samples();
    }

    @Override
    public Collection<E> create(Object... elements) {

            projectKeys.add(key);
        }
        return projectKeys;
    }

    private Collection<String> negate(Collection<String> scopes) {
        Collection<String> result = new HashSet<>();
        Collections.addAll(result, "system", "compile", "provided", "runtime", "test");

        for (String scope : scopes) {
            if ("compile".equals(scope)) {
                result.remove("compile");

                        "Multi module project collection failed:{}"
                                + "Detected a POM file next to a .mvn directory in a parent directory ({}). "
                                + "Maven assumed that POM file to be the parent of the requested project ({}), but it turned "
                                + "out that it was not. Another project collection strategy will be executed as result.",

    return emptySet();
  }

  protected Collection<Method> suppressForHashtable() {
    return emptySet();
  }

  protected Collection<Method> suppressForLinkedHashMap() {
    return emptySet();
  }

  protected Collection<Method> suppressForTreeMapNatural() {
    return emptySet();
  }

  protected Collection<Method> suppressForTreeMapWithComparator() {

  protected Collection<Method> suppressForSingletonSet() {
    return emptySet();
  }

  protected Collection<Method> suppressForHashSet() {
    return emptySet();
  }

  protected Collection<Method> suppressForLinkedHashSet() {
    return emptySet();
  }

  protected Collection<Method> suppressForEnumSet() {
    return emptySet();
  }

  protected Collection<Method> suppressForSynchronizedNavigableSet() {

  }

  private static <E extends @Nullable Object> Collection<E> typePreservingCollection(
      Collection<E> collection, @Nullable Object mutex) {
    if (collection instanceof SortedSet) {
      return sortedSet((SortedSet<E>) collection, mutex);
    }
    if (collection instanceof Set) {
      return set((Set<E>) collection, mutex);
    }
    if (collection instanceof List) {
      return list((List<E>) collection, mutex);

  }

  private static <E extends @Nullable Object> Collection<E> typePreservingCollection(
      Collection<E> collection, @Nullable Object mutex) {
    if (collection instanceof SortedSet) {
      return sortedSet((SortedSet<E>) collection, mutex);
    }
    if (collection instanceof Set) {
      return set((Set<E>) collection, mutex);
    }
    if (collection instanceof List) {
      return list((List<E>) collection, mutex);