glm-5.2
18c4924ad7
Parse docs/architecture/tty-bast.md at test time, extract the BAST
JSON block, and assert the StreamType enum values match wire.rs's
STREAM_STDIN/STREAM_STDOUT/STREAM_STDERR/STREAM_CTRL_IN/
STREAM_CTRL_OUT constants (the index of each name in the enum's
values array is the integer on the wire). Catches the common drift
case — a new stream_type added to wire.rs but not the BAST, or vice
versa — without requiring alktype as a dep, just serde_json which
alktty already has.
This is the mitigation listed in the project setup plan's "Risk: BAST
schema drift" section. The test lives in src/wire.rs mod tests alongside
the STREAM_* constants it asserts against, so a developer editing the
constants sees the test fail locally before the BAST doc and the wire
format drift apart.
Verified the test catches drift by temporarily renaming CtrlOut ->
CtrlOutX in the BAST: the test fails with a clear diagnostic
("StreamType[4] is 'CtrlOutX' in BAST but 'CtrlOut' in wire.rs"),
then restored.
Verification:
- cargo test --all-features -> 123 tests pass (104 lib + 19
integration; +1 from the new drift test)
- cargo clippy --all-targets --all-features -- -D warnings -> clean
- cargo clippy --target wasm32-unknown-unknown -- -D warnings -> clean
- cargo fmt --check -> clean