Lesson 9 Unit test: Raffle__NotEnoughEthProvided

[Holger-ap]

Hello, I've a problem with the unit tests, all the tests that require an entrance fee gets reverted, I've written them out in the helper-config.js file, but for some reason, it does not seem to accept it... Does anyone have any idea why this could be happening?
My repo: here

Example of error

1) Raffle
       enterRaffle
         records players when they enter the game:
     Error: VM Exception while processing transaction: reverted with custom error 'Raffle__NotEnoughEthProvided()'

[Nlferu]

Hello @Holger-ap

Your code seems to be ok. The only thing, which is interesting for me is that how are you running your tests as command yarn hardhat test should be throwing error for you as your test folder should be named test and it is named tests, which should cause error. Try changing it and let me know, but I have tested your code and it works for me.

[alymurtazamemon]

@Holger-ap Hey! You are facing this issue because you are getting this entrance fee from the contract and sending it as a value to enterRaffle function here;

it("records players when they enter the game", async function () {
    await raffle.enterRaffle({ value: raffleEntranceFee })
    const playerFromContract = await raffle.getPlayer(0)
    assert.equal(playerFromContract, deployer)
})

But you have the condition inside the enterRaffle function this;

if (msg.value <= i_enteranceFee) {
    revert Raffle__NotEnoughEthProvided();
}

So obviously the value will be equal to the entrance fee because you are sending an equal amount which is why it is throwing the error. It should be like this;

if (msg.value < i_enteranceFee) {
    revert Raffle__NotEnoughEthProvided();
}

[Holger-ap]

Perfect, this solved the problem!
Thank you very much for your help!