Overview
Two Heads are Better Than One
Pair testing is a powerful social testing technique that facilitates knowledge sharing and uncovers logic defects that a solo tester might miss.
Pair testing is particularly effective during Exploratory Testing sessions. It encourages real-time brainstorming and immediate feedback, which is invaluable for complex features or legacy code with low documentation.
Best Practices
Dos and Don'ts
Avoid common mistakes that can lead to flaky tests and maintenance nightmares.
What to do
- •Pair a QA with a Developer to foster a 'Quality First' culture in the squad.
- •Switch roles (Driver/Navigator) every 30-60 minutes to stay fresh.
- •Define a clear 'Charter' or goal for the session.
Common Pitfalls
- •Don't pair test for simple, repetitive tasks; it’s a waste of resources.
- •Don't let one person dominate the session; it must be a dialogue.
The Details
The 'Shift-Left' Impact of QA-Dev Pairing
When a QA pairs with a Developer, the focus shifts from 'Finding Bugs' to 'Preventing Bugs'. The developer learns how a tester thinks (edge cases, boundary values), and the tester learns about the technical constraints of the code. This knowledge transfer leads to better unit tests and more robust code before it ever reaches a formal test environment. For a QA Manager, this is the most cost-effective way to reduce 'Defect Leakage' into production.