How would I test contracts that call custom precompiles?

[samtay]

Any ideas? I see foundry uses revm as its evaluator for e.g. running tests. Would this require, perhaps, forking evm to support a custom precompile and then re-compiling foundry/forge with this revm fork?

Thanks for any help.

[samtay]

In case anyone else needs to do this, the original idea above has worked well for me. I have a revm fork that adds the necessary precompiles, and then a standard cargo patch in foundry/Cargo.toml so that when I compile foundry, it looks for my revm fork instead of the revm on crates.io.