lesson 7 in staging test " TypeError: Cannot read properties of undefined (reading 'includes') "

[kotysky]

Hello,
I have this problem and I dont know what is going on...
the problem is here...

developmentChains.includes(network.name)
    ? describe.skip

but there is the same in the deploy-fund-me.js, and it works fine!

The next is the text error shown in the terminal...

TypeError: Cannot read properties of undefined (reading 'includes')
    at Object.<anonymous> (/home/kotysky/hh--fcc/hardhat-fund-me-fcc/test/staging/FundMe.staging.test.js:5:19)
    at Module._compile (node:internal/modules/cjs/loader:1103:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1157:10)
    at Module.load (node:internal/modules/cjs/loader:981:32)
    at Function.Module._load (node:internal/modules/cjs/loader:822:12)
    at Module.require (node:internal/modules/cjs/loader:1005:19)
    at require (node:internal/modules/cjs/helpers:102:18)
    at /home/kotysky/hh--fcc/hardhat-fund-me-fcc/node_modules/mocha/lib/mocha.js:414:36
    at Array.forEach (<anonymous>)
    at Mocha.loadFiles (/home/kotysky/hh--fcc/hardhat-fund-me-fcc/node_modules/mocha/lib/mocha.js:411:14)

FundMe.staging.test.js

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

developmentChains.includes(network.name)
    ? describe.skip
    : describe("FundMe", async () => {
          let fundMe
          let deployer
          const sendValue = ethers.parseEther("0.1") // 1eth
          beforeEach(async function () {
              const accounts = await ethers.getSigners()
              deployer = accounts[0]

              const fundMeDeploy = await deployments.get("FundMe")
              fundMe = await ethers.getContractAt(
                  fundMeDeploy.abi,
                  fundMeDeploy.address,
                  deployer
              )
          })
          it("Allows people to fund and withdraw", async () => {
              await fundMe.fund({ value: sendValue })
              await fundMe.withdraw()
              const endingBalance = await ethers.provider.getBalance(
                  fundMe.getAddress()
              )
              assert.equal(endingBalance.toString(), "0")
          })
      })

hardhat-config.js

require("@nomicfoundation/hardhat-toolbox")
require("hardhat-deploy")
require("dotenv").config()
//require("@nomiclabs/hardhat-etherscan")

const SEPOLIA_RPC_URL = process.env.SEPOLIA_RPC_URL
const POLYGON_RPC_URL = process.env.POLYGON_RPC_URL
const MUMBAI_RPC_URL = process.env.MUMBAI_RPC_URL
const PRIVATE_KEY = process.env.PRIVATE_KEY
const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY
const SEPOLIA_ETHERSCAN_API_KEY = process.env.SEPOLIA_ETHERSCAN_API_KEY
const MUMBAI_ETHERSCAN_API_KEY = process.env.MUMBAI_ETHERSCAN_API_KEY

module.exports = {
    //solidity: "0.8.8",
    solidity: {
        compilers: [{ version: "0.8.8" }, { version: "0.6.6" }],
    },
    defaultNetwork: "hardhat",
    networks: {
        polygon: {
            url: POLYGON_RPC_URL,
            accounts: [PRIVATE_KEY],
            chainId: 1442,
            blockConfirmations: 6,
        },
        sepolia: {
            url: SEPOLIA_RPC_URL,
            accounts: [PRIVATE_KEY],
            chainId: 11155111,
            blockConfirmations: 6,
        },
        mumbai: {
            url: MUMBAI_RPC_URL,
            accounts: [PRIVATE_KEY],
            chainId: 80001,
            blockConfirmations: 6,
        },
    },
    gasReporter: {
        enabled: true,
        outputFile: "gas-report.txt",
        noColors: true,
        currency: "USD",
        coinmarketcap: COINMARKETCAP_API_KEY,
        token: "ETH",
    },
    etherscan: {
        apiKey: process.env.ETHERSCAN_API_KEY,
    },

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

package.json

{
  "devDependencies": {
    "@chainlink/contracts": "^0.7.1",
    "@nomicfoundatiob/hardhat-ethers": "npm:hardhat-deploy-ethers",
    "@nomicfoundation/hardhat-chai-matchers": "^2.0.0",
    "@nomicfoundation/hardhat-ethers": "^3.0.0",
    "@nomicfoundation/hardhat-network-helpers": "^1.0.0",
    "@nomicfoundation/hardhat-toolbox": "^3.0.0",
    "@nomicfoundation/hardhat-verify": "^1.1.1",
    "@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers",
    "@typechain/ethers-v6": "^0.4.0",
    "@typechain/hardhat": "^8.0.0",
    "chai": "^4.2.0",
    "ethers": "^6.7.1",
    "hardhat": "^2.17.4",
    "hardhat-deploy": "^0.11.37",
    "hardhat-gas-reporter": "^1.0.8",
    "solidity-coverage": "^0.8.0",
    "typechain": "^8.1.0"
  },
  "dependencies": {
    "dotenv": "^16.3.1"
  }
}

helper-hardhat-config.js

const networkConfig = {
    11155111: {
        name: "sepolia",
        ethUsdPriceFeed: "0x694AA1769357215DE4FAC081bf1f309aDC325306",
    },
    1442: {
        name: "polygon",
        ethUsdPriceFeed: "0x1a0Df40e0F195593d244Eb99E2Ad9Ba7f34C1076",
    },
    80001: {
        name: "mumbai",
        ethUsdPriceFeed: "0x0715A7794a1dc8e42615F059dD6e406A6594651A",
    },
}
const developmentsChains = ["hardhat", "localhost"]
const DECIMALS = 8
const INITIAL_ANSWER = 200000000000

module.exports = {
    networkConfig,
    developmentsChains,
    DECIMALS,
    INITIAL_ANSWER,
}


  
```

[alfaqi]

there is s additional developmentChains in helper-hardhat-config.js file
just delete it

[kotysky]

-Guau, sometimes our brain is our worst enemy, thanks mate!