dev/src/skills/style/build/rules/tests.md

Test rules

Declare Rust tests in Bazel

Rule

Declare Rust test files in the nearest Bazel BUILD file with rust_test. Do not add [[test]] entries to Cargo.toml unless the operator explicitly requests Cargo test declarations.

Rationale

This repository declares Rust test targets in Bazel. Keeping test declarations in Bazel avoids duplicate test target lists.

Use one source input style per rust_test

Rule

Do not set both crate and srcs on a rust_test target. Use exactly one input style for each Rust test target.

Rationale

rules_rust rejects rust_test targets that set both crate and srcs. Keeping one input style per target makes the test declaration valid and unambiguous.