Lesson 1: A bug that reached production · 8 min
Before you begin · The invoice · What went wrong
Learners prepare on their own, you answer questions live, and the surveys tell you what stuck. 7 fields to fill in with your own policy, contacts and locations; each one is highlighted inside the course.



What learners can do at the end of each lesson. Minutes are an estimate.
Before you begin · The invoice · What went wrong
The pyramid · Which level? · Check
Anatomy · Fix the vague test · Edge cases
Red, green, refactor · Order the steps · Check
Why tests flake · The test that fails on Mondays · Tools
Severity and priority · Raise it early · Practice