Lesson 9 : Error: Invalid Chai property: revertedWithCustomError

[JovanniChen]

This is happening with all of my custom errors. Whenever I expect the transaction to revert with these custom errors, it shows reverted with a custom error.

/* errors */
error Raffle__EntranceFeeNotEnough();
error Raffle__TransferFailed();
error Raffle__NotOpen();
error Raffle__UpkeepNotNeeded(
    uint256 currentBalance,
    uint256 numPlayers,
    uint256 raffleState
);

Unit test:

          describe("enterRaffle", () => {
              it("reverts when you don't pay enough part 1", async () => {
                  await expect(raffle.enterRaffle()).to.be.revertedWith(
                      "Raffle__EntranceFeeNotEnough"
                  )
              })

              it("reverts when you don't pay enough part 2", async () => {
                  await expect(
                      raffle.enterRaffle()
                  ).to.be.revertedWithCustomError(
                      raffle,
                      "Raffle__EntranceFeeNotEnough"
                  )
              })

              it("records player when they enter", async () => {
                  await raffle.enterRaffle({ value: raffleEntranceFee })
                  const contractPlayer = await raffle.getPlayer(0)
                  assert.equal(deployer, contractPlayer)
              })
          })

And I got:

Raffle Unit Test
    constructor
      ✓ Initializes the raffle correctly
    enterRaffle

      1) reverts when you don't pay enough part 1

      2) reverts when you don't pay enough part 2
      ✓ records player when they enter (65175 gas)


  2 passing (2s)
  2 failing

  1) Raffle Unit Test
       enterRaffle
         reverts when you don't pay enough part 1:
     AssertionError: Expected transaction to be reverted with Raffle__EntranceFeeNotEnough, but other exception was thrown: ProviderError: VM Exception while processing transaction: revert
  

  2) Raffle Unit Test
       enterRaffle
         reverts when you don't pay enough part 2:
     Error: Invalid Chai property: revertedWithCustomError
      at Object.proxyGetter [as get] (node_modules/chai/lib/chai/utils/proxify.js:78:17)
      at Context.<anonymous> (test/unit/Raffle.test.js:47:26)

Someone can help me? Thanks.

[SimSimButDifferent]

Post your whole contract code or share repo please, ill have a look

[JovanniChen]

Hi, I have solved it, but i don't know why.
I just change the defaultNetwork from 'ganache' to 'hardhat' in hardhat.config.js.

[SimSimButDifferent]

Ah well played mate.

[JovanniChen]

Ah well played mate.

Thanks for your help, bro.

[isumanov]

Looks like you need to have @nomicfoundation/hardhat-chai-matchers package installed and include it as require("@nomicfoundation/hardhat-chai-matchers") in hardhat.config.js

[Fikhas]

Looks like you need to have @nomicfoundation/hardhat-chai-matchers package installed and include it as require("@nomicfoundation/hardhat-chai-matchers") in hardhat.config.js

Thanks a lot, this solved the problem.