check-rust-coverage

Rust test coverage analysis identifies exactly which lines of code aren't exercised by your tests. Use cargo with coverage tooling like llvm-cov to compute coverage reports, then analyze them to pinpoint untested lines per file or crate.

Yes, coverage analysis works with monorepos by targeting per-crate and per-file coverage gaps. This lets you identify untested lines across multiple crates in a single workspace and guide targeted test development for each.

You need a Rust toolchain with cargo and coverage instrumentation tooling like llvm-cov installed. These prerequisites enable computing coverage reports and reporting exact uncovered lines across your project.

Coverage reports surface high-priority gaps by showing untested lines per file and crate. Focus on areas with the most coverage gaps to accelerate test development and remediation across your codebase.

Coverage analysis integrates into testing workflows to detect uncovered lines, complementing static analysis. Generate report-ready outputs that summarize missing lines to guide test writing and catch validation gaps before deployment.