FundMe "before each" hook for "sets the aggregator addresses correctly": Error: No Contract deployed with name FundMe

[jacoboforero]

Hey guys I am experiencing a problem on the first part of the unit test of HardHat-fundMe.

When I run my FundMe.test.js I am getting the following output with error. mind you I have run it both on the hardhat network and the localhost. Also the deploy scripts work fine when i run yarn hardhat deploy. The problem only arises when I try to deploy the contracts from the unit test script. I have seen similar questions but none of the fixes have worked for me. I triple checked that both deploy scripts export the tags properly, I checked the hardhat config file 10 times for any bugs, as I said before I deployed the contracts just with the deploy scripts and it worked fine on both hardhat and localhost.

I am pretty sure the problem lies in the line: await deployments.fixture("all"); since this is the one that is supposed to run the deployment scripts from the unit test but I have no idea how to fix it. Any will will be greatly appreciated, thanks!

The error i get:

  FundMe
    constructor
      1) "before each" hook for "sets the aggregator addresses correctly"


  0 passing (74ms)
  1 failing

  1) FundMe
       "before each" hook for "sets the aggregator addresses correctly":
     Error: No Contract deployed with name FundMe
      at Object.getContract (node_modules/@nomiclabs/hardhat-ethers/src/internal/helpers.ts:447:11)
      at processTicksAndRejections (internal/process/task_queues.js:93:5)
      at Context.<anonymous> (test/unit/FundMe.test.js:31:14)



error Command failed with exit code 1.

Here is the FundMe.test.js

const { assert } = require("chai");
const { deployments, ethers, getNamedAccounts } = require("hardhat");

describe("FundMe", function () {
  let fundMe;
  let mockV3Aggregator;
  let deployer;
  const sendValue = ethers.utils.parseEther("1");
  beforeEach(async () => {
    // const accounts = await ethers.getSigners()
    // deployer = accounts[0]
    deployer = (await getNamedAccounts()).deployer;
    await deployments.fixture("all");
    fundMe = await ethers.getContract("FundMe", deployer);
    mockV3Aggregator = await ethers.getContract("MockV3Aggregator", deployer);
  });
  describe("constructor", async function () {
    it("sets the aggregator addresses correctly", async function () {
      const response = await fundMe.priceFeed();
      assert.equal(response, mockV3Aggregator.address);
    });
  });
});

Here is my 00-deploy-mocks.js

const { network } = require("hardhat");
const {
  developmentChain,
  DECIMALS,
  INITIAL_ANSWER,
} = require("../helper-hardhat-config");
module.exports.default = async ({ getNamedAccounts, deployments }) => {
  console.log("Hello");
  const { deploy, log } = deployments;
  const { deployer } = await getNamedAccounts();

  if (developmentChain.includes(network.name)) {
    log("Local Network detected, deploying mocks...");
    await deploy("MockV3Aggregator", {
      contract: "MockV3Aggregator",
      from: deployer,
      log: true,
      args: [DECIMALS, INITIAL_ANSWER],
    });
    console.log("Mocks deployed!");
    console.log("__________________");
  }
};
module.exports.tags = ["all", "mocks"];

Here is the 01-deploy-fund-me.js:

const { network } = require("hardhat");
const { networkConfig, developmentChain } = require("../helper-hardhat-config");
module.exports.default = async ({ getNamedAccounts, deployments }) => {
  const { deploy, log } = deployments;
  const { deployer } = await getNamedAccounts();
  const chainId = network.config.chainId;

  let ethUsdPriceFeedAdress;
  if (developmentChain.includes(network.name)) {
    const ethUsdAggregator = await deployments.get("MockV3Aggregator");
    ethUsdPriceFeedAdress = ethUsdAggregator.address;
  } else {
    ethUsdPriceFeedAdress = "0xD4a33860578De61DBAbDc8BFdb98FD742fA7028e;";
  }
  console.log(`ethusdadress is ${ethUsdPriceFeedAdress}`);
  const fundMe = await deploy("FundMe", {
    from: deployer,
    args: [ethUsdPriceFeedAdress],
    log: true,
  });
  console.log(fundMe.address);
  if (!developmentChain.includes(network.name)) {
    console.log("true");
  }
  console.log("_________");
};
module.exports.tags = ["all", "fundme"];

And here is my hardhat.config.js file :

`require("@nomicfoundation/hardhat-toolbox");
require("hardhat-deploy");

/** @type import('hardhat/config').HardhatUserConfig */

module.exports = {
  defaultNetwork: "hardhat",
  networks: {
    hardhat: {
      chainId: 31337,
      // gasPrice: 130000000000,
    },
    goerli: {
      url: "https://eth-goerli.g.alchemy.com/v2/pN2UxY1drkHtFssAoWZx6RMkfjynMbyk",
      accounts: [
        "a7855f9a202c5bb8c56a1b8b17cb857cb8ab29afec2139b0a308115759d998ef",
      ],
      chainId: 5,
      blockConfirmations: 6,
    },
  },
  solidity: {
    compilers: [
      {
        version: "0.8.8",
      },
      {
        version: "0.6.6",
      },
    ],
  },

  namedAccounts: {
    deployer: {
      default: 0,
      1: 0,
    },
  },
};

[pacelliv]

hello @jacoboforero make the following change in your test script:

• Change: await deployments.fixture("all");
• To: await deployments.fixture(["all"]);

After that change your test should able to pick up all scripts with the tag all.

[pacelliv]

@jacoboforero before pushing to GitHub do this:

• run in your terminal yarn add --dev dotenv
• in your hardhat.config.js add require("dotenv").config()
• create a .env file in which you will set your Keys, GOERLI_RPC_URL and your PRIVATE_KEY (Metamask)
• create a .gitignore include in that file the .env file
• export your key to the hardhat.config.js

Follow the repo of that lesson for reference: https://github.com/PatrickAlphaC/hardhat-fund-me-fcc

[jacoboforero]

@pacelliv You are right that should be done for best practices for production. However right now I just want to get the unit test to work on the localhost network and/or the hardhat network so I think I will do that later. I just want to resolve the bug so I can keep going with the course. I appreciate your response though!

[pacelliv]

• In your test script:
  Change: const response = await fundMe.priceFeed();
  To: const response = await fundMe.PRICE_FEED();

In both your deploy scripts remove the default from module.exports.default. It should look like this:
module.exports = async ({ getNamedAccounts, deployments })...

The test should pass now.

[jacoboforero]

@pacelliv thanks for your help, you are right about needing to change the price feed variable. I did manage to get it to pass without removing default by chaning await deployments.fixture(["all"]); to await deployments.fixture(); since without tags it just ran all the tests which is what I needed. In case anyone else has this problem this fix works although it does not fix the issue of tags not working correctly.

[Abdullah-Sajjad026]

Doing this worked for me.

[alymurtazamemon]

@jacoboforero Your code has so many typos, you should check these;

FundMe.staging.test.js

1. developmentChains correct it in this file as well as in helper file.
2. correct includes spelling mistake developmentChains.includes in the same file
3. correct the describe.skip spelling mistake

FundMe.test.js

1. correct describe spelling describe.skip
2. developmentChains is not define, you should add this in you fileconst { developmentChains } = require("../../helper-hardhat-config");
3. correct includes spelling mistake developmentChains.includes(network.name)

Now make sure to use the same dependencies mentioned in the code repo, your project has dependencies conflicts and same hardhat require statements.

Also make sure to change developmentChains spelling in deploy files.

Now it is working perfectly!

[jacoboforero]

@alymurtazamemon Thanks for your response. Haha yea there was a lot of typos i was following the video and typing fast without pausing. I did manage to get it to work though. Could You please clarify though what you mean by having dependency conflicts? since for dependencies I just followed exactly what Patrick said to install in the video.
Thanks

[alymurtazamemon]

@jacoboforero You are using the newer version dependencies with the old code style that conflict with each other. So just while learning to use, the same versions mentioned in the code repo and better approach is to just copy the package.json file from repo.

[mikon0606]

I met the same issue.Make me crazy.I checked all the words.Can you help me have a look?
Here is the FundMe.test.js

const { deployments, ethers, getNamedAccounts } = require("hardhat")
const { assert } = require("chai")
// const { developmentChains } = require("../../helper.hardhat-config")

describe("FundMe", function () {
let fundMe
let deployer
let mockV3Aggregator
beforeEach(async () => {
deployer = (await getNamedAccounts()).deployer
await deployments.fixture()
fundMe = await ethers.getContract("FundMe", deployer)
mockV3Aggregator = await ethers.getContract(
"MockV3Aggregator",
deployer
)
})

describe("constructor", function () {
    it("sets the aggregator addresses corretly", async () => {
        const response = await fundMe.priceFeed()
        assert.equal(response, mockV3Aggregator.address)
    })
})
})

[alymurtazamemon]

@mikon0606 what is the error?