使用 openzeppelin-test-environment 測試可升級合約

openzeppelin-test-environment是一個相當新的包，它沒有說明如何初始化可升級合約

https://github.com/OpenZeppelin/openzeppelin-test-environment

只是上面連結中的一個基本範例：

const { accounts, contract } = require('@openzeppelin/test-environment');
const [ owner ] = accounts;

const { expect } = require('chai');

const MyContract = contract.fromArtifact('MyContract'); // Loads a compiled contract

describe('MyContract', function () {
 it('deployer is owner', async function () {
   const myContract = await MyContract.new({ from: owner });
   expect(await myContract.owner()).to.equal(owner);
 });
});

如何添加沒有建構子但initialize方法的可升級合約？

怎麼用deployProxy？

// migrations/NN_deploy_upgradeable_box.js
const { deployProxy } = require('@openzeppelin/truffle-upgrades');

const Box = artifacts.require('Box');

module.exports = async function (deployer) {
 const instance = await deployProxy(Box, [42], { deployer });
 console.log('Deployed', instance.address);
};

要初始化合約，您必須按照OpenZeppelin-upgrades 官方文件中的說明進行部署。

如果你使用的是安全帽，你應該有：

const { accounts, contract } = require('@openzeppelin/test-environment');
const [ owner ] = accounts;
const { expect } = require('chai');

const { ethers, upgrades } = require("hardhat");

describe('MyContract', function () {
 it('deployer is owner', async function () {
   const myContract = await ethers.getContractFactory('MyContract');
   const mycontract = await upgrades.deployProxy(myContract, [{ from: owner}]);

   expect(await mycontract.owner()).to.equal(owner);
 });
});

如果您使用的是Truffle，您應該擁有：

const { accounts, contract } = require('@openzeppelin/test-environment');
const [ owner ] = accounts;
const { expect } = require('chai');

const { deployProxy } = require('@openzeppelin/truffle-upgrades');

describe('MyContract', function () {
 it('deployer is owner', async function () {
   const myContract = artifacts.require('MyContract');
   const mycontract = await deployProxy(myContract, [{ from: owner}]);

   expect(await mycontract.owner()).to.equal(owner);
 });
});

引用自：https://ethereum.stackexchange.com/questions/91667