const shouldBehaveLikeProxy = require('../Proxy.behaviour'); const ERC1967Proxy = artifacts.require('ERC1967Proxy'); contract('ERC1967Proxy', function (accounts) { const [proxyAdminOwner] = accounts; const createProxy = async function (implementation, _admin, initData, opts) { return ERC1967Proxy.new(implementation, initData, opts); }; shouldBehaveLikeProxy(createProxy, undefined, proxyAdminOwner); });