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Tests: line-tables-only dev debuginfo, nextest GPU group, faster loop docs (#2204) (#2414)

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- [profile.dev] debug = "line-tables-only", matching CI's CARGO_PROFILE_DEV_DEBUG; halves link
  time and PDB size for test binaries.
- .config/nextest.toml: optional cargo-nextest runs with the GPU tests capped at 4 concurrent
  processes (unlimited ones time out in wgpu).
- AGENTS.md / docs/development.md: iteration commands (--lib --tests, --test <file>, nextest,
  doctests separately). CI is unchanged.

Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
This commit is contained in:
David Mann
2026-10-10 14:03:30 -04:00
committed by GitHub
co-authored by Claude Opus 5.5 Brandon Thomas
parent 0a102eb920
commit 3092d3b6f9
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AGENTS.md
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@@ -99,6 +99,8 @@ cargo xtask perf --quick # if you touched a hot path; `cargo xtask perf --upd
cargo xtask test-corpus # if you touched psd, io, codecs, compose, gpu, text or format (or: --changed decides)
```
While iterating, run less and keep the full commands above as the final gate: `cargo test -p <crate> --lib --tests` skips the examples and doctests plain `cargo test` builds every time (ui-egui has 11 examples), and `cargo test -p <crate> --test <file>` runs one integration-test file. `cargo nextest run` runs tests in parallel across binaries; see `docs/development.md` › Faster test loops.
**Test corpora.** Real-file corpora live in `corpus/` (gitignored, never committed), fetched at pinned commits and sha256-verified by `cargo xtask corpus --all`: our Photoshop-authored oracles from https://github.com/storytold/photocraft-corpus plus psd-tools, ag-psd and PngSuite from their upstreams. Pins: `xtask/src/corpus_pins.rs`. The corpus tests are opt-in (cargo feature `corpus`): plain `cargo test` skips them, and with the feature on a missing corpus fails ("run `cargo xtask corpus --all`"). `cargo xtask test-corpus` fetches and runs them all. CI always runs them (the `corpus` job, cached by pin). Never commit corpus files; new oracles go to photocraft-corpus (its `AGENTS.md`), then a pin bump here. Details: `docs/development.md` › Test corpora.
Commands must **never panic** on bad input (Rule 9): every `run` closure and the code it calls returns `Err`, not a panic, for any params or document state. New commands come with a graceful-failure test (empty/out-of-range/wrong-type params → `Err`, not a crash).