Problem Statement
What should test reports in CI/CD include?
Explanation
Test reports provide visibility into test results enabling quick identification of issues. Essential information: overall pass/fail status, number of tests passed/failed/skipped, test coverage percentage, execution time per test/suite, failure details (error messages, stack traces, screenshots for UI tests), flaky test identification, historical trends.
Report formats: JUnit XML (standard format), HTML reports (human-readable), JSON (programmatic access). Tools: Allure, TestNG, JUnit, pytest, Jest. CI/CD platforms (Jenkins, GitLab, GitHub Actions) parse JUnit XML displaying results in UI, annotating pull requests with test failures.
Report benefits: quick failure identification, coverage tracking, performance regression detection, flakiness monitoring, historical trend analysis. Best practices: preserve reports as artifacts, annotate pull requests, send notifications on failure, generate coverage badges, track trends over time. Understanding test reporting enables data-driven test improvement.
