Regression Testing

Summary

Re-testing previously working functionality to confirm a new change hasn't broken it — a discipline that becomes increasingly important, and increasingly automated, as an application grows.

• 1Identify 5 critical workflows that should always be included in regression testing for a hypothetical app.
• 2Learn why regression test suites tend to grow over time and need periodic pruning.
• 3Understand why manual regression testing doesn't scale well, motivating Phase 7's automation.