feat(tvix/store): add rstest-based PathInfoService tests r/7788

This introduces rstest-based tests. We also add fixtures for creating
some BlobService / DirectoryService out of thin air.
To test a PathInfoService, we don't really care too much about its
internal storage - ensuring they work is up to the castore tests.

Change-Id: Ia62af076ef9c9fbfcf8b020a781454ad299d972e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11272
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/tvix/store/src/lib.rs b/tvix/store/src/lib.rs
index 2fa86ff6a468..8c32aaf885e8 100644
--- a/tvix/store/src/lib.rs
+++ b/tvix/store/src/lib.rs
@@ -6,3 +6,9 @@ pub mod utils;
 
 #[cfg(test)]
 mod tests;
+
+// That's what the rstest_reuse README asks us do, and fails about being unable
+// to find rstest_reuse in crate root.
+#[cfg(test)]
+#[allow(clippy::single_component_path_imports)]
+use rstest_reuse;