Is there a way to stub out block.timestamp in a Solidity unit test. Current using hardhat for unit tests

Need to simulate time passing in my contract for unit testing purposes

Import openzeppelin test helper

It have evm simulation like mine block, increase timestamp...

I thought it was only for web3

Ooh he said hardhat.

Yes, it's hardhat

Wait so test helper doesn't work on ethers?

I don't know

I'm gonna look into it now, thanks, @grimreaper619 !!

Yeah it works with web3 only. The npm docs says install hardhat web3

https://www.npmjs.com/package/@openzeppelin/test-helpers

is it good practice to use web3 and ethers at the same time ?

No idea tbh. Been using only web3 or ethers, not both at same time

I find ethers more intuitive and more powerful. I'll have to use both, then :(

Found this https://ethereum.stackexchange.com/questions/86633/time-dependent-tests-with-hardhat/92906#92906

web3 deprecated for Metamask. On frontend you need to use ethers or another lib.

I faced with this problem a week ago. And now I need to migrate my code to Ethers

I'm writing tests, I'm not doing frontend in this project

This is what test helper also is doing, just being a wrapper for these functions

But I don't know how to read a param of an emitted event

Okay. But as I understood web3 does not maintained now.
It will be more correctly to start from ethers.
I also have web3 on server side and Ethers on client

In a js "getPastEvent "

Where is that property, @davidjohn_crypto_dev ?

It will get the last event of our contract

When we execute the contract function then it will get tha

Or you will get the transaction hash logs event

But the code is emitting an event explicitly

Is it part of ethers ?

Yes

Okay, I'm gonna search in the docs, many thanks, @davidjohn_crypto_dev !!

It's ok

https://web3js.readthedocs.io/en/v1.2.11/web3-eth-contract.html#getpastevents

That's not ethers :(

Dm

Ohh yeah

They are both just libraries so I imagine you can use them both concurrently. Haven’t considered doing that myself before but now that I’m thinking abiht it seems useful

Why not just use test apis to trigger fake mined blocks?

Well it’s not for trading

It’s for data querying, results aren’t real time from what I understand. But I don’t know the details so it might be a useful trading tool?

Yes for watching the pending txns and also submitting txs, that should be a lot faster than using 3rd party services for that no

I run a bot from my local computer that use 3rd party services to buy new listings, my txn lands in the same block but im usually the 4-5th

Yeah. Send amounts below 0.01 bnb and see if that remains

My case, they didn't care and I was able to get my staked cake out

First thought - if you are using 3rd parry service you will never be first. They (people running the service) will always be first. Second thought - if you want to monitor mempool I don’t think you can use the subgraph stuff, don’t think it’s for real time monitoring.

Any competent dev should never need someone else’s private key or seed phrase

Hey, welcome!

ah so web3 completely doesnt work with emtamask anymore

found different infos but cant seem to get it going

O.o?

Just use ethers.js and you're good to go

damn ok

yea omg i wasted so much time with web3 wtf

all training :P

in their documentation it says its still possible and on metamask website they describe this so bad but whatever

yea

Both are pretty poorly documented. At least ethers' documentation isn't actively wrong, and ethers doesn't need an RPC connection for things that can be done without one, whereas web3 requires one in some cases