Cannot resolve error: Invalid Chai Property: revertedWith

[affanmustafa]

I have tried the solutions posted on different discussions regarding this but I have not been able to resolve this error. After running yarn hardhat test I get: Invalid Chai Property: revertedWith

My repository is here.

Here is my randomIpfsNft.test.js:

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

!developmentChains.includes(network.name)
	? describe.skip
	: describe('Random IPFS NFT Unit Tests', function () {
			let randomIpfsNft, deployer, vrfCoordinatorV2Mock;

			beforeEach(async () => {
				accounts = await ethers.getSigners();
				deployer = accounts[0];
				await deployments.fixture(['mocks', 'randomipfs']);
				randomIpfsNft = await ethers.getContract('RandomIpfsNft');
				vrfCoordinatorV2Mock = await ethers.getContract('VRFCoordinatorV2Mock');
			});

			describe('constructor', () => {
				it('sets starting values correctly', async function () {
					const dogTokenUriZero = await randomIpfsNft.getDogTokenUris(0);
					const isInitialized = await randomIpfsNft.getInitialized();
					assert(dogTokenUriZero.includes('ipfs://'));
					assert.equal(isInitialized, true);
				});
			});

			describe('requestNft', () => {
				it("fails if payment isn't sent with the request", async function () {
					await expect(randomIpfsNft.requestNft()).to.be.revertedWith(
						'RandomIpfsNft__NeedMoreETHSent'
					);
				});
				it('reverts if payment amount is less than the mint fee', async function () {
					const fee = await randomIpfsNft.getMintFee();
					await expect(
						randomIpfsNft.requestNft({
							value: fee.sub(ethers.parseEther('0.001')),
						})
					).to.be.revertedWith('RandomIpfsNft__NeedMoreETHSent');
				});
				it('emits an event and kicks off a random word request', async function () {
					const fee = await randomIpfsNft.getMintFee();
					await expect(
						randomIpfsNft.requestNft({ value: fee.toString() })
					).to.emit(randomIpfsNft, 'NftRequested');
				});
			});
			describe('fulfillRandomWords', () => {
				it('mints NFT after random number is returned', async function () {
					await new Promise(async (resolve, reject) => {
						randomIpfsNft.once('NftMinted', async () => {
							try {
								const tokenUri = await randomIpfsNft.tokenURI('0');
								const tokenCounter = await randomIpfsNft.getTokenCounter();
								assert.equal(tokenUri.toString().includes('ipfs://'), true);
								assert.equal(tokenCounter.toString(), '1');
								resolve();
							} catch (e) {
								console.log(e);
								reject(e);
							}
						});
						try {
							const fee = await randomIpfsNft.getMintFee();
							const requestNftResponse = await randomIpfsNft.requestNft({
								value: fee.toString(),
							});
							const requestNftReceipt = await requestNftResponse.wait(1);
							await vrfCoordinatorV2Mock.fulfillRandomWords(
								requestNftReceipt.events[1].args.requestId,
								randomIpfsNft.address
							);
						} catch (e) {
							console.log(e);
							reject(e);
						}
					});
				});
			});
			describe('getBreedFromModdedRng', () => {
				it('should return pug if moddedRng < 10', async function () {
					const expectedValue = await randomIpfsNft.getBreedFromModdedRng(7);
					assert.equal(0, expectedValue);
				});
				it('should return shiba-inu if moddedRng is between 10 - 39', async function () {
					const expectedValue = await randomIpfsNft.getBreedFromModdedRng(21);
					assert.equal(1, expectedValue);
				});
				it('should return st. bernard if moddedRng is between 40 - 99', async function () {
					const expectedValue = await randomIpfsNft.getBreedFromModdedRng(77);
					assert.equal(2, expectedValue);
				});
				it('should revert if moddedRng > 99', async function () {
					await expect(
						randomIpfsNft.getBreedFromModdedRng(100)
					).to.be.revertedWith('RandomIpfsNft__RangeOutOfBounds');
				});
			});
	  });

Here is my hardhat.config.js:

require('@nomiclabs/hardhat-waffle');
require('hardhat-gas-reporter');
require('@nomiclabs/hardhat-etherscan');
require('dotenv').config();
require('solidity-coverage');
require('hardhat-deploy');

const COINMARKETCAP_API_KEY = process.env.COINMARKETCAP_API_KEY || '';
const SEPOLIA_RPC_URL =
	process.env.SEPOLIA_RPC_URL ||
	'https://eth-sepolia.g.alchemy.com/v2/YOUR-API-KEY';
const PRIVATE_KEY = process.env.PRIVATE_KEY || '';
const ETHERSCAN_API_KEY = process.env.ETHERSCAN_API_KEY || '';

module.exports = {
	defaultNetwork: 'hardhat',
	networks: {
		hardhat: {
			chainId: 31337,
			// gasPrice: 130000000000,
		},
		sepolia: {
			url: SEPOLIA_RPC_URL,
			accounts: [PRIVATE_KEY],
			chainId: 11155111,
			blockConfirmations: 6,
		},
		mainnet: {
			url: process.env.MAINNET_RPC_URL,
			accounts: [PRIVATE_KEY],
			chainId: 1,
			blockConfirmations: 6,
		},
	},
	solidity: {
		compilers: [
			{
				version: '0.8.8',
			},
			{
				version: '0.6.6',
			},
		],
	},
	etherscan: {
		apiKey: ETHERSCAN_API_KEY,
	},
	gasReporter: {
		enabled: true,
		currency: 'USD',
		outputFile: 'gas-report.txt',
		noColors: true,
		// coinmarketcap: COINMARKETCAP_API_KEY,
	},
	namedAccounts: {
		deployer: {
			default: 0,
			1: 0,
		},
	},
	mocha: {
		timeout: 200000, // 200 seconds max for running tests
	},
};

And lastly, my package.json:

{
	"devDependencies": {
		"@aave/protocol-v2": "^1.0.1",
		"@chainlink/contracts": "^0.6.1",
		"@nomicfoundation/hardhat-chai-matchers": "^2.0.2",
		"@nomicfoundation/hardhat-ethers": "^3.0.4",
		"@nomicfoundation/hardhat-toolbox": "^3.0.0",
		"@nomiclabs/hardhat-ethers": "npm:hardhat-deploy-ethers",
		"@nomiclabs/hardhat-etherscan": "^3.1.7",
		"@nomiclabs/hardhat-waffle": "^2.0.6",
		"@openzeppelin/contracts": "^4.9.3",
		"chai": "^4.3.8",
		"dotenv": "^16.3.1",
		"ethereum-waffle": "^4.0.10",
		"ethers": "^6.7.1",
		"hardhat": "^2.17.1",
		"hardhat-contract-sizer": "^2.10.0",
		"hardhat-deploy": "^0.11.37",
		"hardhat-gas-reporter": "^1.0.9",
		"path": "^0.12.7",
		"prettier": "^3.0.2",
		"prettier-plugin-solidity": "^1.1.3",
		"solhint": "^3.6.2",
		"solidity-coverage": "^0.8.4"
	},
	"dependencies": {
		"@pinata/sdk": "^1.1.23"
	}
}

[Nlferu]

Hello @affanmustafa

As you are using hardhat v6 it can cause you a lot of errors as it have been massively updated. Please downgrade your ethers to v5 to match course repository.