* test: add WIT compatibility tests for all WASM tools and channels
Adds CI and integration tests to catch WIT interface breakage across
all 14 WASM extensions (10 tools + 4 channels). Previously, changing
wit/tool.wit or wit/channel.wit could silently break guest-side tools
that weren't rebuilt until release time.
Three new pieces:
1. scripts/build-wasm-extensions.sh — builds all WASM extensions from
source by reading registry manifests. Used by CI and locally.
2. tests/wit_compat.rs — integration tests that compile and instantiate
each .wasm binary against the current wasmtime host linker with
stubbed host functions. Catches added/removed/renamed WIT functions,
signature mismatches, and missing exports. Skips gracefully when
artifacts aren't built so `cargo test` still passes standalone.
3. .github/workflows/test.yml — new wasm-wit-compat CI job that builds
all extensions then runs instantiation tests on every PR. Added to
the branch protection roll-up.
[skip-regression-check]
Co-Authored-By: Claude Opus 4.6 <[email protected]>
* style: fix rustfmt formatting in wit_compat tests
Co-Authored-By: Claude Opus 4.6 <[email protected]>
* fix: address PR review feedback on WIT compat tests
- Switch build script from python3 to jq for JSON parsing, consistent
with release.yml and avoids python3 dependency (#1, #7)
- Use dirs::home_dir() instead of HOME env var for portability (#2)
- Filter extensions by manifest "kind" field instead of path (#3)
- Replace .flatten() with explicit error handling in dir iteration (#4, #5)
- Split stub_tool_host_functions into stub_shared_host_functions +
tool-only tool-invoke stub, since tool-invoke is not in channel WIT (#6)
Co-Authored-By: Claude Opus 4.6 <[email protected]>
---------
Co-authored-by: Claude Opus 4.6 <[email protected]>
