loadRemoteVersion is not working with jest test about solc-js

[kuzdogan]

Hey just came across this. Sourcify is also an open-source verification service. We specifically have a plug-and-play package for that called lib-sourcify https://github.com/ethereum/sourcify/tree/staging/packages/lib-sourcify

It's a bit difficult to understand from your excerpt but maybe our code would help, or even you can use the package as a whole. Right now the standard usage assumes you have a metadata.json file for your contracts but you should be able to use the functions there or just look at the code and infer things. It's not browser compatible yet.

Happy to help if you want to use the package or help as much as I can. If your repo is public, can you please share?

[Damantino]

Hey @kuzdogan . yeah I first reach out to you guys (to you specifically), but I've been trying to verify without the need of uploading metadata.

What I'm trying to do is:

I have a set of folders inside contracts/ folder. Each folder has all the solidity files for a smart contract and a settings.json.

I call the endpoint with the files and the settings. Because it's still in development I must be sure that new changes don't break contracts that I was already verifying.

I would like to automatise the process therefore I need to test my endpoint, If you have any clue on how to test loadRemoteVersion on js/typescript or more specifically on a nestjs project I would be very grateful.

[kuzdogan]

Hmm we don't use the loadRemote method but instead download the compiler versions ourself or just mount a folder with all compiler versions.

https://github.com/ethereum/sourcify/blob/129ba96f13246fb2642e8d79d461adbf9e529ff5/services/server/src/server/services/compiler/local/solidityCompiler.ts#L303-L323

In your case I think you can either use the compiler as we do or maybe intercept the call the solc-js makes to the remote solc repo (if it does) with something like nock. For example here we intercept the call to the Sourcify server and return an already set response. You can return a local compiler with by intercepting the call

https://github.com/ethereum/sourcify/blob/1a620f5d9b13713be3e61b14b6c274c7eacab583/services/monitor/test/Monitor.test.js#L105-L110