# 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.