Truffle: Linking libraries inside of test suite without using migrations

[rstormsf]

• [x] I've asked for help in the Truffle Gitter before filing this issue.

---

Issue

Curious how one should link a library inside of test suite without using migrations.
For example:

let x = await Lib.new();
await ContractZ.link(x.address);
let z = await ContractZ.new()
console.log(z.address)

getting

TypeError: Cannot read property 'replace' of undefined
      at node_modules/truffle/build/webpack:/packages/truffle-contract/lib/utils.js:113:1
      at Array.forEach (<anonymous>)
      at Object.linkBytecode (node_modules/truffle/build/webpack:/packages/truffle-contract/lib/utils.js:109:1)
      at Function.binary (node_modules/truffle/build/webpack:/packages/truffle-contract/lib/contract.js:633:1)
      at Function.getter (node_modules/truffle/build/webpack:/packages/truffle-contract/lib/contract.js:388:1)
      at Function.checkLibraries (node_modules/truffle/build/webpack:/packages/truffle-contract/lib/utils.js:139:1)
      at constructor.detectNetwork.then.network (node_modules/truffle/build/webpack:/packages/truffle-contract/lib/contract.js:131:1)
      at <anonymous>
      at process._tickCallback (internal/process/next_tick.js:182:7)

• Operating System: OSX
• Ethereum client: ganache-cli (truffle test internal)
• Truffle version (truffle version): Truffle v5.0.0-next.12 (core: 5.0.0-beta.0)
• node version (node --version): v9.11.2
• npm version (npm --version): 5.6.0

Workaround

I understand that I can fix it if I simply add a link to migrations:

module.exports = async function (deployer) {
    await deployer.deploy(Lib);
    await deployer.link(Lib, ContractZ);
};

I was just curious if I can do same thing inside of test suite.

[gnidan]

It looks like it might be that ContractZ, after linking, does not reflect the link added. Will look into. Thanks!

[stale[bot]]

Thank you for raising this issue! It has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. If you would like to keep this issue open, please respond with information about the current state of this problem.

[stale[bot]]

There has been no new activity on this issue since it was marked as stale 7 days ago, so it is being automatically closed. If you'd like help with this or a different problem, please open a new issue. Thanks!

[guix77]

Got the same pb...

[guix77]

I got it working, we need to use the 2nd form of link() since with new() the instance is not at the same address as the expected default with deployed(): https://github.com/trufflesuite/truffle-contract#mycontractlinkname-address

const myLib = await MyLib.new();
await MyContract.link(MyLib, myLib.address);
const mycontract = await MyContract.new();

[okwme]

This only worked for me when I wrote it like:

const myLib = await MyLib.new();
await MyContract.link("MyLib", myLib.address);
const mycontract = await MyContract.new();