根据 Hardhat 的官方测试文档,ethers
应该在全局范围内隐式可用;但是,它可以选择require
显式地 d ,如下所示:
const { ethers } = require("hardhat");
这对我的本地项目失败。
我的包清单似乎包含正确的依赖项:
{
"dependencies": {
"@nomiclabs/hardhat-ethers": "^2.0.1",
"@nomiclabs/hardhat-waffle": "^2.0.1",
"@openzeppelin/contracts": "https://github.com/OpenZeppelin/openzeppelin-contracts#v4.0.0-beta.0",
"chai": "^4.3.1",
"hardhat": "^2.0.11"
}
}
我的单元测试文件似乎也与 Hardhat 文档中的工作示例相匹配:
const { ethers } = require("hardhat");
const { expect } = require("chai");
describe("Distributor.sol", function() {
it("Distribution should fail for non-owners", async function() {
const DistributorFactory = await ethers.getContractFactory("Distributor");
const Distributor = await Distributor.deploy();
Distributor.distribute([], []);
expect(await hardhatToken.totalSupply()).to.be.revertedWith("foobar");
});
});
尽管如此,运行测试还是失败了:
$ yarn hardhat test
yarn run v1.22.5
$ /home/bob/dev/misc/token-distributor/node_modules/.bin/hardhat test
Distributor.sol
undefined
1) Distribution should fail for non-owners
0 passing (9ms)
1 failing
1) Distributor.sol
Distribution should fail for non-owners:
TypeError: Cannot read property 'getContractFactory' of undefined
at Context.<anonymous> (test/Distributor.js:8:49)
at processImmediate (internal/timers.js:461:21)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
我该如何解决?