@Shared
    DefaultServiceRegistry services = (DefaultServiceRegistry) ServiceRegistryBuilder.builder()
        .parent(NativeServicesTestFixture.getInstance())
        .provider(LoggingServiceRegistry.NO_OP)
        .provider(new GlobalScopeServices(false, AgentStatus.disabled()))
        .build()
    final MessagingServer server = services.get(MessagingServer.class)
    @Rule

    def delegateResult = Mock(Result)

    def setup() {
        def validationContext = new DefaultWorkValidationContext(WorkValidationContext.TypeOriginInspector.NO_OP)
        context.getValidationContext() >> validationContext
    }

    def "executes work when there are no violations"() {
        boolean validated = false
        when:

  array_ops_stack.stack([old_x, new_x], name='result')


def tfvariable_sequential_updates(_):
  x = variables.Variable(1.0, name='x')
  y = variables.Variable(1.0, name='y')
  updates = control_flow_ops.no_op()
  for _ in range(3):
    with ops.control_dependencies([updates]):
      x_val = x.read_value() + y
      updates = x.assign_sub(0.1 * x_val)

  array_ops.identity(updates, name='result')

// RUN: tf-mlir-translate -mlir-to-graphdef %s -o - | FileCheck %s

func.func @main() {
  tf_executor.graph {
    tf_executor.island wraps "tf.NoOp"() {} : () -> () loc("noop")
    tf_executor.fetch
  }
  func.return
}

// CHECK: node {
// CHECK-NEXT:  name: "noop"
// CHECK-NEXT:  op: "NoOp"
// CHECK-NEXT:  experimental_debug_info {
// CHECK-NEXT:  }

// CHECK-LABEL: func @preserve_unreachable_tpu_replicate_metadata
func.func @preserve_unreachable_tpu_replicate_metadata() {
  tf_executor.graph {
    %0 = tf_executor.ControlTrigger {}
    // CHECK: "tf.NoOp"
    %1 = tf_executor.island wraps "tf.NoOp"() : () -> ()
    // CHECK: "tf.TPUReplicateMetadata"

                dependsOn(group: 'com.google.inject', artifact: 'guice', version: '4.2.2', classifier: 'no_aop')
            }
            // inspired by: https://repo1.maven.org/maven2/com/google/inject/guice/4.2.2/
            'com.google.inject:guice:4.2.2' {
                withModule {
                    undeclaredArtifact(type: 'jar', classifier: 'no_aop')
                }
                dependsOn 'javax.inject:javax.inject:1'

    %island2 = tf_executor.island(%island1) {
      "tf.NoOp"() : () -> ()
      tf_executor.yield
    }
    // expected-warning@+1 {{unexpected control dependency path: path 0, node 2 (intermediate)}}
    %island3 = tf_executor.island(%island2) {
      "tf.NoOp"() : () -> ()
      tf_executor.yield
    }

    %control_2 = tf_executor.island wraps "tf.NoOp"() {_pivot_for_cluster = "cluster", device = ""} : () -> ()
    // CHECK: %control_3 = tf_executor.island(%control_2) wraps "tf.NoOp"() {_tpu_replicate = "cluster", device = ""} : () -> ()
    %control_3 = tf_executor.island(%control_2) wraps "tf.NoOp"() {_replication_info = "cluster", _xla_compile_device_type = "TPU", device = ""} : () -> ()

			fmt.Fprintln(os.Stderr, "no panic from segv")
			os.Exit(1)
		}
	}()
	*P = 0
	fmt.Fprintln(os.Stderr, "continued after segv")
	os.Exit(1)
}

// Noop ensures that the Go runtime is initialized.
//
//export Noop
func Noop() {
}

// Raise SIGPIPE.
//
//export GoRaiseSIGPIPE
func GoRaiseSIGPIPE() {
	C.CRaiseSIGPIPE()
}

func main() {

    value {
      list {
        shape {
          unknown_rank: true
        }
        shape {
          unknown_rank: true
        }
      }
    }
  }
}
node {
  name: "NoOp"
  op: "NoOp"
  input: "^cluster/pivot"
  attr {
    key: "_tpu_replicate"
    value {
      s: "cluster"
    }
  }
}
node {
  name: "Identity"
  op: "Identity"
  input: "cond"