UnsupportedOperationException e =
        assertThrows(UnsupportedOperationException.class, () -> nodes.add(N2));
    addNode(N1);
    assertThat(network.nodes()).containsExactlyElementsIn(nodes);
  }

  @Override
  @Test
  public void edges_checkReturnedSetMutability() {
    Set<String> edges = network.edges();
    UnsupportedOperationException e =
        assertThrows(UnsupportedOperationException.class, () -> edges.add(E12));

    assume().that(graphIsMutable()).isTrue();

    addEdge(N1, N2, E12);
    IllegalArgumentException e =
        assertThrows(
            IllegalArgumentException.class, () -> networkAsMutableNetwork.addEdge(N4, N5, E12));
    assertThat(e).hasMessageThat().contains(ERROR_REUSE_EDGE);
    e = assertThrows(IllegalArgumentException.class, () -> addEdge(N2, N1, E12));
    assertThat(e).hasMessageThat().contains(ERROR_REUSE_EDGE);
  }

    PotentialDeadlockException expected =
        assertThrows(PotentialDeadlockException.class, () -> lock2.lock());
    checkMessage(expected, "MyOrder.THIRD -> MyOrder.SECOND");

    expected = assertThrows(PotentialDeadlockException.class, () -> lock1.lock());
    checkMessage(expected, "MyOrder.THIRD -> MyOrder.FIRST");

    lock3.unlock();
    lock2.lock();

    expected = assertThrows(PotentialDeadlockException.class, () -> lock1.lock());

    SettableFuture<String> future = SettableFuture.create();
    future.cancel(true);
    assertThrows(
        CancellationException.class, () -> getChecked(future, TwoArgConstructorException.class));
  }

  public void testGetCheckedUntimed_ExecutionExceptionChecked() {
    TwoArgConstructorException expected =
        assertThrows(
            TwoArgConstructorException.class,

        assertThrows(IllegalStateException.class, n1AdjacentNodes::size));
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1Predecessors::size));
    assertNodeRemovedFromGraphErrorMessage(
        assertThrows(IllegalStateException.class, n1Successors::size));
    assertNodeRemovedFromGraphErrorMessage(

    assertThrows(NullPointerException.class, () -> nos.write(null));
    assertThrows(NullPointerException.class, () -> nos.write(null, 0, 1));
    byte[] tenBytes = new byte[10];
    assertThrows(IndexOutOfBoundsException.class, () -> nos.write(tenBytes, -1, 1));
    assertThrows(IndexOutOfBoundsException.class, () -> nos.write(tenBytes, 1, -1));

    assertThrows(IllegalArgumentException.class, () -> builder.maximumWeight(-1));
  }

  @GwtIncompatible // maximumWeight
  public void testMaximumWeight_setTwice() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().maximumWeight(16);
    assertThrows(IllegalStateException.class, () -> builder.maximumWeight(16));

  }

  public void testForUriStringBad() {
    assertThrows(IllegalArgumentException.class, () -> InetAddresses.forUriString(""));

    assertThrows(
        IllegalArgumentException.class, () -> InetAddresses.forUriString("192.168.999.888"));

    assertThrows(
        IllegalArgumentException.class, () -> InetAddresses.forUriString("www.google.com"));

      Set<Object> keys = cache.asMap().keySet();
      assertThrows(NullPointerException.class, () -> keys.toArray((Object[]) null));
      checkEmpty(cache);
    }
  }

  public void testKeySet_addNotSupported() {
    for (LoadingCache<Object, Object> cache : caches()) {
      assertThrows(UnsupportedOperationException.class, () -> cache.asMap().keySet().add(1));

      assertThrows(

    graph.putEdgeValue(1, 2, "A");
    IllegalArgumentException e =
        assertThrows(
            IllegalArgumentException.class,
            () -> graph.edgeValueOrDefault(EndpointPair.unordered(1, 2), "default"));
    assertThat(e).hasMessageThat().contains(ENDPOINTS_MISMATCH);
    e =
        assertThrows(
            IllegalArgumentException.class,