knut's own quality matrix (L4b)
knut consumes the published reusable test-matrix engine nornir-testmatrix as a dev-dependency of the knut-bifrost member (the crate that already hosts the file→graph lifecycle integration tests). This proves the matrix framework is reusable from this repo — knut can render its OWN quality matrix standalone, with no nornir checkout.
Run knut's matrix
cargo run -p knut-bifrost --example quality_matrixThis runs run_full_matrix(".", Aspect::DEFAULT) — build, unit, doctest, clippy, fmt, audit — writes the rows to target/quality-matrix.jsonl via JsonFileSink, and prints render_matrix(&rows).
It shells one cargo invocation per aspect, so it is deliberately NOT in the normal cargo test path (no cargo-inside-cargo on every test run).
Wiring proof (fast + offline)
crates/knut-bifrost/tests/testmatrix_wiring.rs is an inject-and-assert test (testmatrix_roundtrip_and_render_inject_assert): it feeds canned TestResultRows (varied status / aspect / metric) through the real JsonFileSink round-trip and summarize_runs + render_matrix, then asserts exact tallies, that aspect+metric survive serde, and that the rendered grid shows the red ✗ marker. No cargo subprocess, no network.