Tests were flaky because command() inherited the real repo as the
working directory. When the repo was clean, detached runs attempted
git worktree creation against it, sometimes failing and injecting
extra warning lines into snapshots.
Now command() defaults to the non-git temp_dir, eliminating this
class of flakiness. Tests needing a specific directory override with
.current_dir(). Also canonicalizes fixture paths and adds a
[FIXTURES] snapshot filter via test_context!() macro.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Adopt uv's testing pattern: a shared `fabro-test` crate with TestContext
and fabro_snapshot! macro, plus one test file per subcommand under
tests/it/cmd/. This replaces the trycmd-based tests which were hard to
read and didn't compose well with programmatic assertions.
- Create lib/crates/fabro-test with TestContext, run_and_format,
apply_filters, INSTA_FILTERS, and test_context!/fabro_snapshot! macros
- Add 42 snapshot tests across 16 subcommand files
- Delete trycmd.rs and all tests/cmd/ trycmd files
- Remove trycmd dependency, add fabro-test dev-dependency
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
