}
    }.test();
  }

  @GwtIncompatible // fairly slow (~40s)
  public void testConcatSingletonAndSingletonYieldsDoubleton() {
    new DoubletonIteratorTester() {
      @Override
      protected Iterator<Integer> newTargetIterator() {
        return Iterators.concat(iterateOver(1), iterateOver(2));
      }
    }.test();
  }

  @GwtIncompatible // fairly slow (~40s)

      }
    }.test();
  }

  @GwtIncompatible // fairly slow (~40s)
  public void testConcatSingletonAndSingletonYieldsDoubleton() {
    new DoubletonIteratorTester() {
      @Override
      protected Iterator<Integer> newTargetIterator() {
        return Iterators.concat(iterateOver(1), iterateOver(2));
      }
    }.test();
  }

  @GwtIncompatible // fairly slow (~40s)

     * returns 0, but if we had a SingletonImmutableSortedSet, this might no
     * longer be the case.)
     *
     * javax.naming.Name and java.util.concurrent.Delayed might work, but
     * they're fairly obscure, we've invented our own interface and class.
     */
    Interface a = new Impl();
    Interface b = new Impl();
    ImmutableSortedSet<Interface> set = ImmutableSortedSet.of(a, b);

            }
        });

        chatClient.setTestSummaryMaxChars(20);
        final ChatSession session = new ChatSession();
        session.addUserMessage("Q1");
        session.addAssistantMessage("This is a fairly long response that should be summarized using smart summary mode.");

        final List<LlmMessage> history = chatClient.testExtractHistory(session);
        assertEquals(2, history.size());

     * returns 0, but if we had a SingletonImmutableSortedSet, this might no
     * longer be the case.)
     *
     * javax.naming.Name and java.util.concurrent.Delayed might work, but
     * they're fairly obscure, we've invented our own interface and class.
     */
    Interface a = new Impl();
    Interface b = new Impl();
    ImmutableSortedSet<Interface> set = ImmutableSortedSet.of(a, b);

        for (int i = 0; i < 10; i++) {
            final Map<String, Object> doc = new HashMap<>();
            doc.put("title", "Document " + i);
            doc.put("content", "This is a fairly long content for document " + i + " that should cause truncation.");
            documents.add(doc);
        }

        final String result = client.testBuildContext(documents);

   * as necessary when the method is expected to return (at the cost of hanging forever if there is
   * a bug in the class under test) but that we time out fairly promptly when the method is expected
   * to hang (possibly too quickly, but too-quick failures should be very unlikely, given that we
   * used to bail after 20ms during the expected-successful tests, and there we saw a failure rate

   * as necessary when the method is expected to return (at the cost of hanging forever if there is
   * a bug in the class under test) but that we time out fairly promptly when the method is expected
   * to hang (possibly too quickly, but too-quick failures should be very unlikely, given that we
   * used to bail after 20ms during the expected-successful tests, and there we saw a failure rate

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liu.guangcong, Loki Der Quaeler, Louie Helm, lucasmoura, Luke Iwanski, Lyndon
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