registration.run {
            add(DefaultEncryptionService::class.java)
            add(ConfigurationCacheKey::class.java)
            add(ConfigurationCacheReport::class.java)
            add(DeprecatedFeaturesListener::class.java)
            add(DefaultBuildModelControllerServices::class.java)
            add(DefaultBuildToolingModelControllerFactory::class.java)
            add(ConfigurationCacheRepository::class.java)

  Output a0 =
      ops::Add(root.WithOpName("a0"), sw_0.output_false, sw_1.output_false);
  Output a1 = ops::Add(root.WithOpName("a1"), a0, sw_2.output_false);

  Output b0 =
      ops::Add(root.WithOpName("b0"), sw_1.output_false, sw_2.output_false);
  Output b1 = ops::Add(root.WithOpName("b1"), sw_0.output_false, b0);

  Output add = ops::Add(root.WithOpName("add"), a1, b1);

# CHECK-SAME:  outputs = "Sub"
# CHECK:           %[[add:.*]], %[[add_control:.*]] = tf_executor.island wraps "tf.Add"(%[[ARG_0]], %[[ARG_1]]) {device = "/job:localhost/replica:0/task:0/device:CPU:0"}
# CHECK:           %[[mul:.*]], %[[mul_control:.*]] = tf_executor.island wraps "tf.Mul"(%[[add]], %[[add]]) {device = ""}

        1 * dependencyConstraintFactory.createDependencyConstraint("someOther") >> constraint2
        1 * dependencyConstraintSet.add(constraint1)
        1 * dependencyConstraintSet.add(constraint2)
    }

    void "can use dynamic method to add multiple dependency constraint from nested lists"() {
        def constraint1 = Mock(DependencyConstraint)
        def constraint2 = Mock(DependencyConstraint)

        and:
        source.iterator().collect() == iterationOrder("foo", "bar", "baz", "fizz")
    }

    def "can add only realized providers"() {
        when:
        source.add("foo")
        source.add("bar")
        source.add("baz")
        source.add("fizz")

        then:
        source.iteratorNoFlush().collect() == iterationOrder("foo", "bar", "baz", "fizz")

        and:

  protected List<Class<? extends AbstractTester>> getTesters() {
    List<Class<? extends AbstractTester>> testers = new ArrayList<>();
    testers.add(BiMapEntrySetTester.class);
    testers.add(BiMapPutTester.class);
    testers.add(BiMapInverseTester.class);
    testers.add(BiMapRemoveTester.class);
    testers.add(BiMapClearTester.class);
    return testers;
  }

  enum NoRecurse implements Feature<Void> {
    INVERSE;

    @Override

      experimental_debug_info {
        original_node_names: "add/y"
      }
    }
    node_def {
      name: "add_0"
      op: "AddV2"
      input: "add_const"
      input: "add/y:output:0"
      attr {
        key: "T"
        value {
          type: DT_INT32
        }
      }
      experimental_debug_info {
        original_node_names: "add"
      }
    }
    ret {
      key: "add"

    val headers =
      Headers.Builder()
        .add("WWW-Authenticate: Basic realm=\"protected area\"")
        .build()
    assertThat(headers.parseChallenges("WWW-Authenticate"))
      .isEqualTo(listOf(Challenge("Basic", mapOf("realm" to "protected area"))))
  }

  @Test fun basicChallengeWithCharset() {
    val headers =
      Headers.Builder()

				NotBefore:    now.Add(-time.Hour),
				NotAfter:     now.Add(time.Hour),
				ExtKeyUsage:  []ExtKeyUsage{ExtKeyUsageServerAuth},
			},
		},
		{
			name: "valid (with name)",
			cert: &Certificate{
				SerialNumber: big.NewInt(1),
				DNSNames:     []string{"valid.testing.golang.invalid"},
				NotBefore:    now.Add(-time.Hour),
				NotAfter:     now.Add(time.Hour),

		time.Sleep(100 * time.Millisecond)
		wg.Add(+1)
		x = 2
		wg.Add(-1)
		c <- true
	}()
	<-c
	<-c
}

// Incorrect usage: Add is too late.
func TestRaceWaitGroupWrongWait(t *testing.T) {
	c := make(chan bool, 2)
	var x int
	_ = x
	var wg sync.WaitGroup
	go func() {
		wg.Add(1)
		runtime.Gosched()
		x = 1
		wg.Done()
		c <- true
	}()
	go func() {
		wg.Add(1)
		runtime.Gosched()
		x = 2