private static final ImmutableSet<String> SCOPE_IDS =
      ImmutableSet.of("eno1", "en1", "eth0", "X", "1", "2", "14", "20");

  public void testIPv4AddressWithScopeId() {
    ImmutableSet<String> ipStrings = ImmutableSet.of("1.2.3.4", "192.168.0.1");
    for (String ipString : ipStrings) {
      for (String scopeId : SCOPE_IDS) {
        String withScopeId = ipString + "%" + scopeId;

  }

  /** If we don't keep a strong reference to the reference object, it won't be enqueued. */
  @Nullable FinalizableWeakReference<Object> reference;

  /** Create the FRQ in a method that goes out of scope so that we're sure it will be reclaimed. */
  private void weaklyReferenceQueue() {
    frq = new FinalizableReferenceQueue();
    queueReference = new WeakReference<>(frq.queue);

    /*

  }

  /** If we don't keep a strong reference to the reference object, it won't be enqueued. */
  @Nullable FinalizableWeakReference<Object> reference;

  /** Create the FRQ in a method that goes out of scope so that we're sure it will be reclaimed. */
  private void weaklyReferenceQueue() {
    frq = new FinalizableReferenceQueue();
    queueReference = new WeakReference<>(frq.queue);

    /*

   *
   * <p>This deliberately avoids all nameservice lookups (e.g. no DNS).
   *
   * <p>Anything after a {@code %} in an IPv6 address is ignored (assumed to be a Scope ID).
   *
   * <p>This method accepts non-ASCII digits, for example {@code "１９２.１６８.０.１"} (those are fullwidth
   * characters). That is consistent with {@link InetAddress}, but not with various RFCs. If you

      Multiset<E> self, Multiset<? extends E> elements) {
    // It'd be nice if we could specialize for ImmutableMultiset here without also retaining
    // its code when it's not in scope...
    if (elements instanceof AbstractMapBasedMultiset) {
      return addAllImpl(self, (AbstractMapBasedMultiset<? extends E>) elements);
    } else if (elements.isEmpty()) {
      return false;
    } else {

  private static final ImmutableSet<String> SCOPE_IDS =
      ImmutableSet.of("eno1", "en1", "eth0", "X", "1", "2", "14", "20");

  public void testIPv4AddressWithScopeId() {
    ImmutableSet<String> ipStrings = ImmutableSet.of("1.2.3.4", "192.168.0.1");
    for (String ipString : ipStrings) {
      for (String scopeId : SCOPE_IDS) {
        String withScopeId = ipString + "%" + scopeId;

    double x1 = 1.2;
    double y1 = 3.4;
    double slope = Double.MIN_VALUE;
    LinearTransformation transformation = LinearTransformation.mapping(x1, y1).withSlope(slope);
    assertThat(transformation.isVertical()).isFalse();
    assertThat(transformation.isHorizontal()).isFalse();
    assertThat(transformation.slope()).isWithin(ALLOWED_ERROR).of(slope);

    double x1 = 1.2;
    double y1 = 3.4;
    double slope = Double.MIN_VALUE;
    LinearTransformation transformation = LinearTransformation.mapping(x1, y1).withSlope(slope);
    assertThat(transformation.isVertical()).isFalse();
    assertThat(transformation.isHorizontal()).isFalse();
    assertThat(transformation.slope()).isWithin(ALLOWED_ERROR).of(slope);

    @Deprecated
    @Override
    @DoNotCall("Always throws UnsupportedOperationException")
    public final void clear() {
      throw new UnsupportedOperationException();
    }

    /**
     * Scope the return type to {@link UnmodifiableIterator} to ensure this is an unmodifiable view.
     *
     * @since 20.0 (present with return type {@link Iterator} since 2.0)
     */
    @Override

    assertThat(transformation.inverse().transform(y1 + yDelta))
        .isWithin(ALLOWED_ERROR)
        .of(x1 + xDelta);
    assertThat(transformation.slope()).isWithin(ALLOWED_ERROR).of(yDelta / xDelta);
    assertThat(transformation.inverse().slope()).isWithin(ALLOWED_ERROR).of(xDelta / yDelta);
    assertThat(transformation.inverse()).isSameInstanceAs(transformation.inverse());