Testing a Login Feature the Way You'd Actually Do It on the Job
A lot of QA content teaches testing techniques in isolation — here's equivalence partitioning, here's boundary value analysis, here's how to write a bug report. All useful, but it rarely shows how those pieces come together on a single, real feature.
So here's one walkthrough, start to finish: testing a login feature manually, at the API level, and with automation — the way you'd actually approach it with a sprint deadline, not in a vacuum.
The feature
A web and mobile app lets a user log in with an email and password. On success, they land on a dashboard. After 5 failed attempts within 10 minutes, the account locks for 15 minutes.
