Embedding scenario code in Go

Embedding in Go

Scenario steps can be embedded in Go, in order to program for more flexible behavior. One can even save dynamically generated scenarios. For a comprehensive example on how to do that, check out the delegation contract fuzzer in MultiversX VM or the DNS contract deployment scenario test generator. Just a snippet from the fuzzer:

_,
  (err = pfe.executeTxStep(
    fmt.Sprintf(
      `
    {
        "step": "scDeploy",
        "txId": "-deploy-",
        "tx": {
            "from": "''%s",
            "value": "0",
            "contractCode": "file:delegation.wasm",
            "arguments": [
                "''%s",
                "%d",
                "%d",
                "%d"
            ],
            "gasLimit": "100,000",
            "gasPrice": "0"
        },
        "expect": {
            "out": [],
            "status": "",
            "logs": [],
            "gas": "*",
            "refund": "*"
        }
    }`,
      string(pfe.ownerAddress),
      string(pfe.auctionMockAddress),
      args.serviceFee,
      args.numBlocksBeforeForceUnstake,
      args.numBlocksBeforeUnbond
    )
  ));