Assert gRPC calls

[alexsnaps]

This is one of the two additions we've done to the framework: support asserting on gRPC calls
Follow up would be reading properties: Kuadrant#1

[alexsnaps]

Ugh 🤦 I should test the stuff I cherry-pick from another branch... brb

[PiotrSikora]

Any chance that you could add a simple gRPC example to Proxy-Wasm Rust SDK that would exercise the new code paths?

Yes, we want to test the test framework :)

[alexsnaps]

Yeah. I'll try to find something that avoids pulling things other than basic types tho, to avoid needing protoc - wdyt?

[PiotrSikora]

Definitely! The simpler the better.

[PiotrSikora]

FYI, I've added basic gRPC example in proxy-wasm/proxy-wasm-rust-sdk#248.

[PiotrSikora]

FYI, I've added basic gRPC example in proxy-wasm/proxy-wasm-rust-sdk#248.

Merged in #23. Could you add coverage for them in this PR? Thanks!

[alexsnaps]

@PiotrSikora thanks to @eguzki I think this has it all now, or do we miss anything?

[eguzki]

I would also add Kuadrant#6, as it supports assert on GRPC call errors and breaks backward compat regarding the API introduced in this PR.