Tests that set/remove the same environment variables can race when cargo test runs them in parallel. Merges each racing pair into a single test function. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Tests that set/remove the same environment variables can race when cargo test runs them in parallel. Merges each racing pair into a single test function. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>