Coveralls in AI answers

Coveralls helps you deliver code confidently by showing which parts of your code aren’t covered by tests. It integrates with your CI server to collect coverage data and provides repository-wide, line-by-line reports, trends, and public badges for sharing coverage. The service is free for open-source repos, offers paid plans for private repos, and provides enterprise/self-hosted options; it supports many languages and integrates with GitHub, Bitbucket, and GitLab.