Coveralls
Test Coverage History & Statistics
Coveralls is a code coverage tracking service that collects coverage data from continuous integration builds and reports which parts of a repository are tested and which are not. It works with any CI service and supports GitHub, Bitbucket, and GitLab, with integration packages for languages including C/C++, Go, Java, JavaScript/Node, PHP, Python, Ruby, Scala, and .NET.
The service provides a coverage dashboard, repository-level and file-level coverage statistics, build-by-build history across branches and pull requests, and line-by-line source views. It offers pull request comments, configurable status updates that can allow or block merges based on coverage criteria, notifications to Slack and webhooks, coverage badges, and an API for adding repositories and retrieving build statistics. Monorepo support includes carryforward flags and layout settings, and there are community integrations plus a GitHub Action and CircleCI Orb.
Coveralls is free for open source and public repositories. Paid cloud plans cover private repositories and are tied to a single organization, with tiers based on the number of private repos and a 30-day trial available. All plans include unlimited users. Enterprise options are available as hosted or on-premise deployments, with seat-based pricing, premium support, and custom service-level terms.
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