then:
        output.count("files: [${["lib1", "lib2", "lib3", "lib4-1.0"].collectMany { lib -> targetJarsFor(lib) }.sort().join(", ")}]") == 2
    }

    def "failure in transformation chain propagates (position in chain: #failingTransform)"() {
        given:

        Closure<String> possiblyFailingTransform = { index ->
            index == failingTransform ? "FailingDuplicator" : "Duplicator"
        }

      %graph:6 = tf_executor.graph {
        %_, %chain_0_src = tf_executor.island wraps "tf.Identity"(%chain_0) : (tensor<i32>) -> tensor<i32>
        %_, %chain_1_src = tf_executor.island wraps "tf.Identity"(%chain_1) : (tensor<i32>) -> tensor<i32>

  if iptables -w -L INPUT | grep "Chain INPUT (policy DROP)" > /dev/null; then
    echo "Add rules to accept all inbound TCP/UDP/ICMP packets"
    iptables -w -A INPUT -w -p TCP -j ACCEPT
    iptables -w -A INPUT -w -p UDP -j ACCEPT
    iptables -w -A INPUT -w -p ICMP -j ACCEPT
    iptables -w -A INPUT -w -p SCTP -j ACCEPT
  fi
  if iptables -w -L FORWARD | grep "Chain FORWARD (policy DROP)" > /dev/null; then

    return b.create<TF::CastOp>(loc, dst_type, input,
                                /*truncate=*/b.getBoolAttr(false));
  return nullptr;
}

// Follow the use chain of TensorList and return true iff all elements written
// to TensorList have same static shape. If all elements have same shape, assign
// it to `potential_element_type`.
//