Scope root = Scope::NewRootScope().ExitOnError();

  Output a = ops::Const(root.WithOpName("a"), Input::Initializer(0.0));
  Output enter =
      ops::internal::Enter(root.WithOpName("enter"), a, "only_frame");
  Output exit = ops::internal::Exit(root.WithOpName("exit"), enter);
  Output b = ops::Add(root.WithOpName("b"), a, exit);

  FixupSourceAndSinkEdges(root.graph());

  GraphCycles cycles;

            def a = it.askQuestion("enter value", "value")
            def b = it.askQuestion("enter another value", "value")
            [a, b]
        }

        then:
        1 * outputEventBroadcaster.onOutput(_ as UserInputRequestEvent)
        1 * outputEventBroadcaster.onOutput(_) >> { TextQuestionPromptEvent event ->
            assert event.question == "enter value"
        }

    auto enter =
        ops::internal::Enter(scope.WithOpName("while/Enter"), source, "aloop");
    // Add an unused Enter node. These should be ignored.
    auto enter2 =
        ops::internal::Enter(scope.WithOpName("while/Enter2"), source, "aloop");
    auto merge = ops::Merge(scope.WithOpName("while/Merge"),
                            std::initializer_list<Input>{enter, dummy});
    auto ten = ops::Const<int32>(

TEST(NodeMatchers, Attrs) {
  Scope root = Scope::NewRootScope().ExitOnError();
  Output enter = ops::internal::Enter(
      root.WithOpName("enter"),
      ops::Placeholder(root.WithOpName("data"), DT_FLOAT), "frame_name",
      ops::internal::Enter::Attrs{}.IsConstant(true));
  EXPECT_THAT(enter.node(), NodeWith(Attr("is_constant", true)));
  EXPECT_EQ(Explain(enter.node(), NodeWith(Attr("is_constant", false))),

import spock.lang.Specification

class IntQuestionPromptEventTest extends Specification {
    def "formats prompt"() {
        def event = new IntQuestionPromptEvent(123, "question?", 2, 4)
        assert event.prompt == "enter value (min: 2, default: 4): "
    }

    def "accepts valid input"() {
        def event = new IntQuestionPromptEvent(123, "question?", 2, 4)

        expect:
        def result = event.convert(input)

  const string unique_suffix = absl::StrCat("_", GetUniqueScopeId());

  std::vector<Node*> starts;
  starts.push_back(start);
  auto enter = [&](Node* n) { AddOrAppendXlaInternalScope(n, unique_suffix); };
  ReverseDFSFrom(*graph_, starts, enter, /*leave=*/nullptr,
                 /*stable_comparator=*/NodeComparatorName());
}

void ClusterScopingPassImpl::AddScopeToAllTransitiveSuccessors(Node* start) {

   * methods that do not take an explicit timeout value, a single test case is generated only if the
   * implicit timeout of that method matches the given timeoutsToUse. For example, enter() is
   * treated like enter(MAX, MILLIS) and tryEnter() is treated like enter(0, MILLIS).
   */
  private static void addTests(
      TestSuite suite,
      Method method,
      Scenario scenario,
      TimeoutsToUse timeoutsToUse,

   * methods that do not take an explicit timeout value, a single test case is generated only if the
   * implicit timeout of that method matches the given timeoutsToUse. For example, enter() is
   * treated like enter(MAX, MILLIS) and tryEnter() is treated like enter(0, MILLIS).
   */
  private static void addTests(
      TestSuite suite,
      Method method,
      Scenario scenario,
      TimeoutsToUse timeoutsToUse,

  Output capture_enter_outer = ops::internal::Enter(
      root.WithOpName("capture_enter_outer"), captured, "outer_loop",
      ops::internal::Enter::Attrs().IsConstant(true));
  Output capture_enter_inner = ops::internal::Enter(
      root.WithOpName("capture_enter_inner"), capture_enter_outer, "inner_loop",
      ops::internal::Enter::Attrs().IsConstant(true));

        def event = new SelectOptionPromptEvent(123, "question", ["11", "12", "13"], 1)

        assert event.prompt == TextUtil.toPlatformLineSeparators("""question:
  1: 11
  2: 12
  3: 13
Enter selection (default: 12) [1..3] """)
    }

    def "accepts valid input"() {
        def event = new SelectOptionPromptEvent(123, "question", ["1", "2", "3", "4"], 1)

        expect: