Is it possible to execute an instruction with PDA signed using framework LocalEnvironment?

[bhcsayx]

I am currently doing some tests on Anchor programs and found that sometimes they may need a PDA signed to invoke certain instructions, for Solana official APIs we have invoke_signed() which allows passing PDA seeds into it such as workshop level0 examples:

However the execute_as_transaction() API for LocalEnvironment only allows keypairs, I am wondering if there is anything for it to allow similar functions? Thank you very much!

[tlambertz]

That would be a great feature to have!

Unfortunately, I think it requires quite a bit of rework to support. The way the transactions are currently passed into the solana runtime requires private keys to attach signatures. That makes using faking PDA signatures impossible right now. You'd have to enter the runtime where you can just say "this account has signed" without having signatures.