coverage

Map test↔source coverage inferred from git co-change history. A source file lists the test files that change with it (the tests that likely cover it); a test file lists the source files it covers.

Coverage is derived at query time from the temporal-coupling table (the same signal behind related), filtered by the file’s role. Test files are detected by path conventions (test_*, *_test.*, *_spec.*, tests/, spec/, __tests__/, …) — no separate index or coverage instrumentation is required.

Usage

bobbin coverage <FILE> [OPTIONS]

Examples

bobbin coverage src/auth.rs            # Tests that cover auth.rs
bobbin coverage tests/test_auth.rs     # Sources test_auth.rs covers
bobbin coverage src/auth.rs --threshold 0.5   # Only strong links

Options

Notes

Coverage links are a heuristic from commit co-change, not execution tracing: a test and source that always change together are inferred to be linked. Files with no shared commit history return no links.