Integrating Android Projects with Codecov for Coverage Tracking
Article Summary
Still manually checking code coverage on Android PRs? There's a better way that turns coverage tracking into an automated gatekeeper for your codebase.
This technical guide walks through integrating Codecov with Android projects using GitHub and Travis CI. It covers the full setup from generating coverage reports across different project types to automating checks on every pull request.
Key Takeaways
- Codecov can automatically fail builds that degrade test coverage
- jacoco-android-gradle-plugin handles report generation without manual task configuration
- Single bash command uploads multiple reports from multi-module projects
- Instrumentation tests need testCoverageEnabled true in build type config
- codecov-io bot comments coverage impact directly on pull requests
Codecov integration transforms code coverage from a manual check into an automated CI gate that reviews every pull request.
About This Article
Android projects don't have built-in Gradle report tasks for unit test coverage. Developers need to manually configure tools or use external plugins to generate jacoco reports across different application variants and library modules.
Artur Stępniewski created a guide that uses jacoco-android-gradle-plugin version 0.1.1. This plugin automatically sets up coverage tasks and outputs XML files that Codecov can process.
Multi-module Android projects can now send multiple coverage report files to Codecov at the same time without merging them first. Codecov can then add coverage comments directly to pull requests in the CI pipeline.
