Testing

Three layers, all running under just gate:

1. Unit / property / snapshot

cargo nextest run --workspace --all-features. Lives next to the code it exercises. Snapshots via insta.

2. Integration tests

In each crate's tests/ directory. For storybooks specifically:

• wisp-storybook/tests/story_smoke.rs — every story renders without a wgpu validation error scope warning ("no console errors at runtime").
• wisp-storybook/tests/story_fingerprints.rs — quadrant-bucketed RGBA averages, locked to insta YAML. Regression gate for visual changes.
• ui-storybook/tests/snapshots.rs — SSR HTML for every story, locked to insta. Regression gate for class swaps, missing children, attribute drift.

3. Doctests

Every # Examples block in a /// doc runs via cargo test --doc. Doctests are the anti-rot mechanism for documentation — if the example stops compiling, the gate fails.

Recursive-fix loop

If just gate is red, loop until green. Never disable tests, never #[allow] clippy without a reason = "…", never bypass cargo deny / cargo audit / cargo machete.