Files
vdm/tests/conformance
samiandClaude Sonnet 5 9dce588456 proto: link velox::proto in the C++ conformance runner, per CORE's request
core/docs/proto-requests-conformance-cmake.md: the runner's header comment
said it links libveloxproto, but it actually compiled
core/generated/velox_proto.cpp straight into the executable and found
nlohmann_json itself — the only option while ADR 0009's target didn't exist.
It exists now on main as velox::proto (core/CMakeLists.txt, PUBLIC generated
include dir, PUBLIC nlohmann_json).

if(TARGET velox::proto): link it. else: fall back to compiling the generated
.cpp directly, for a configure with no core/ in the tree. Both paths verified
— full tree links libveloxproto.a (compiled once, by veloxproto's own
target); with core/CMakeLists.txt hidden the fallback compiles the .cpp and
finds nlohmann itself. conformance_cpp passes either way.

Beyond tidiness: once GUI links velox::proto too, the conformance runner
linking the same target is what guarantees the suite and the clients exercise
byte-identical generated code, rather than two compiles of one .cpp under two
warning configs — the exact skew a conformance suite exists to catch.

run.sh's own direct g++ compile is unaffected and stays independent by
design; this only changes the ctest-driven path CI and lanes use.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_012fgjnqFCS5h5L7gZTZo3rV
2026-09-10 14:50:26 +04:00
..

tests/conformance — one suite, three runners

This is a required check on every lane's PR. It is the mechanism that makes four parallel lanes safe: the C++ daemon and the TypeScript extension are proved compatible without either having run against the other.

./tests/conformance/run.sh                                  # starts its own mockd
./tests/conformance/run.sh --uds /run/user/1000/velox/velox.sock --ws-port 52000

The runners

Runner Needs Asserts
check_contract.py python3, jsonschema schemas parse and resolve; the documented surface matches the schema surface both ways; every method has a success fixture; every fixture validates; SettingKey and Settings agree; committed generated code is not stale
cpp/ a C++23 compiler, nlohmann every golden payload parses into the generated structs, serialises back stably, and goes through the real dispatch(); privileged methods are refused -32003 over the WebSocket
ts/replay.ts node ≥ 20 a live server answers every fixture over every transport the contract allows, and the reply passes the generated validator

run.sh also runs one scenario that cannot be shown against a healthy server: with the daemon answering slower than capture.offer's 750 ms deadline, the client must give up and let Firefox take the download. That is the fail-open guarantee, and it is checked here.

What "passing" means

The runners check the contract, not the implementation's opinions. Results are compared by shape and validated against the generated validators; error codes are compared exactly. Byte-equality with a golden file is deliberately not asserted, because a live daemon returns its own ids and its own clock — see contracts/fixtures/README.md.

Adding a method without a fixture fails check_contract.py. Regenerating and forgetting to commit the output fails it too.

Request to lane PKG/QA

.github/ belongs to PKG/QA, so this suite is not wired into CI by lane PROTO. Please add it as a required status check on every branch, roughly:

  conformance:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-node@v4
        with: { node-version: '22' }
      - run: sudo apt-get update && sudo apt-get install -y nlohmann-json3-dev
      - run: pip install jsonschema referencing
      - run: ./tests/conformance/run.sh

The suite needs: python3 with jsonschema, a C++23 compiler, nlohmann-json, and Node ≥ 20. It starts and stops its own mockd; nothing else needs to be running.