04-at-block-removed.js

// SIP-042: at-block removed
// Attempts to deploy a Clarity 5 contract that uses at-block.
// Should fail during analysis with UnknownFunction("at-block").
// The deploy tx should be included in the block but fail, and the fee is collected.

const {
  makeContractDeploy,
  ClarityVersion,
  PostConditionMode,
} = require("@stacks/transactions");
const { PRIVATE_KEY, NETWORK } = require("./config");
const { broadcast } = require("./broadcast");

const codeBody = `
;; This contract should fail to deploy in epoch 3.4
;; because at-block is removed from Clarity 5
(define-read-only (get-old-height (block-hash (buff 32)))
  (at-block block-hash block-height)
)
`;

async function main() {
  const tx = await makeContractDeploy({
    codeBody,
    contractName: "at-block-removed-test",
    clarityVersion: ClarityVersion.Clarity5,
    senderKey: PRIVATE_KEY,
    network: NETWORK,
    fee: 50000,
    postConditionMode: PostConditionMode.Deny,
  });
  await broadcast(tx, "SIP-042: at-block removal (expect failure)");
}

main().catch(console.error);