Automating with GitLab Duo, Part 3: Validating testing

This post details a validation test where engineers removed all existing tests (74% coverage) and used GitLab Duo to regenerate tests. The team achieved 84% test coverage in approximately two days by one engineer, a significant improvement over the previous four weeks of manual effort. Coverage has since increased to 89%. The post highlights that GitLab Duo enables developers with lower context to write valuable tests quickly, increasing confidence in feature development.