Run fork tests on multiple chains

[PaulRBerg]

The fork tests are currently run against a single chain.

Ref: foundry-rs/book#872

[andreivladbrg]

I was thinking to address this issue. Since forge does not provide helpers I am thinking to apply this methodology:

• add a new foundry profile (fork multi chain - or any other name)
• this profile is going to be used only in ci-fork
• implement a util function to check this profile, similar to isTestOptimizedProfile
• if the profile is specified run the fork tests against all endpoints in foundry.toml, if any other profile is used, run only on mainnet
• implement a modifier to select all forks and run the same tests for them
• introduce new datatypes for all information needed

I am currently working on this locally, and it's going well. I will add the branch here once I push any commit.

Reading the code will also make it easier to understand my methodology from above.

@PaulRBerg tagging you to get notification

[andreivladbrg]

I have to admit, this is taking much longer than expected. One factor that influences the speed of the process is that it takes forever to run fork tests against multiple assets and chains.

I have successfully implemented this on this branch, but only for Linear.

[smol-ninja]

Wouldn't it burn RPC endpoints for fork tests? I am afraid we might be seeing more frequent stalled/failed tests due to rate limiting. And don't forget it already takes ~1 hr currently and with new fork tests, it may take ~6-7 hours or may be longer.

Andrei, how long it takes to run all fork tests (i.e. 20 runs) on your machines?

I may be wrong here but I think its overkill to run fork tests on all chains (after all they all are EVMs) 😅.

[PaulRBerg]

I agree with Shub, it's overkill to run cross-chain forks tests.

We're not a bridge so we are not interested in cross-chain communication. The Sablier protocol is siloed.

after all they all are EVMs

There are some important differences in opcode pricing and gas calculations, but we at Sablier have the privilege of being able to ignore them.

[PaulRBerg]

Closing. Thank you for your efforts thus far @andreivladbrg.