TL;DR: I compared the major CI/CD tools for test automation (GitHub Actions, GitLab CI, Jenkins, CircleCI, Travis CI, TeamCity, Bitbucket Pipelines, Tekton, Harness) — and instead of stopping at a table, I wrote the exact same test pipeline three times : once for GitHub Actions (running live), once for GitLab CI, and once as a Jenkinsfile, all in one public repo so you can compare the syntax line by line. Repo: github.com/Dayan-18/ci-tools-demo → Why CI is where your tests ac...