LESSON 07 | Error in plugin solidity-coverage

[Umairulislam]

I'm trying to run

yarn hardhat coverage 

It gives the following error

Error in plugin solidity-coverage: ❌ 1 test(s) failed under coverage.

Following is my code

    describe("fund", async function () {
        it("Fails if you dont send enough ETH", async function () {
            await expect(fundMe.fund()).to.be.revertedWith("You need to spend more Eth!")
        })
        it("Updated the amount funded data structure", async function () {
            await fundMe.fund({ value: sendValue })
            const response = await fundMe.addressToAmountFunded(deployer)
            assert.equal(response.toString(), sendValue.toString())
        })

My Solidity Coverage version is

"solidity-coverage": "^0.8.2",

[alymurtazamemon]

@Umairulislam Are you using the waffle or toolbox plugin?

[Umairulislam]

@alymurtazamemon toolbox

[mattjaf]

is there more details to the error?

[Umairulislam]

Basically, I'm running tests
following is my code

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

describe("FundMe", async function () {
    let fundMe
    let deployer
    let mockV3Aggregator
    const sendValue = ethers.utils.parseEther("1") // 1 ETH
    beforeEach(async function () {
        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 address correctly", async function () {
            const response = await fundMe.priceFeed()
            assert.equal(response, mockV3Aggregator.address)
        })
    })

    describe("fund", async function () {
        it("Fails if you dont send enough ETH", async function () {
            await expect(fundMe.fund()).to.be.revertedWith("You need to spend more Eth!")
        })
        it("Updated the amount funded data structure", async function () {
            await fundMe.fund({ value: sendValue })
            const response = await fundMe.addressToAmountFunded(deployer)
            assert.equal(response.toString(), sendValue.toString())
        })
        it("Add funder to array of funders", async function () {
            await fundMe.fund({ value: sendValue })
            const funder = await fundMe.funders(0)
            assert.equal(funder, deployer)
        })
    })
})

I'm not passing my 2nd test correctly

 FundMe
    constructor
      ✔ Sets the Aggregator address correctly
    fund
      1) Fails if you dont send enough ETH
      ✔ Updated the amount funded data structure (67ms)
      ✔ Add funder to array of funders (69ms)

It shows this error on 2nd test

   Fails if you dont send enough ETH:
     AssertionError: Expected transaction to be reverted with reason 'You need to spend more Eth!', but it reverted with reason 'Didn't send enough!'

when I run following command

yarn harhat coverage

it throws me Errro saying

Error in plugin solidity-coverage: ❌ 1 test(s) failed under coverage.

[mattjaf]

read this! Its not lying to you dude.

Expected transaction to be reverted with reason 'You need to spend more Eth!', but it reverted with reason 'Didn't send enough!'

The custom error message in ur test is not the same error thats being throwing from ur contract.

change one or the other, they have to be equal

describe("fund", async function () {
        it("Fails if you dont send enough ETH", async function () {
            await expect(fundMe.fund()).to.be.revertedWith("Didn't send enough!")
        })