Lesson 919 of 2116
Ask For The Test Before The Fix
When a bug is real, the agent should prove it with a failing test before changing production code.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1Ask For The Test Before The Fix
- 2test-first
- 3red-green
- 4bug reproduction
Concept cluster
Terms to connect while reading
Section 1
Ask For The Test Before The Fix
When a bug is real, the agent should prove it with a failing test before changing production code.
- 1Name the job before naming the tool.
- 2Write the smallest useful scope the agent can finish.
- 3Run the result as a user, not as a fan of the tool.
- 4Inspect the diff, data access, and failure path before sharing.
Use this as the working prompt or checklist for the lesson.
Write a failing test for: free users can open paid lessons after refreshing. Do not edit app code until the test fails for the right reason.- What should the user be able to do when this is finished?
- What data should the app or agent never expose?
- What test proves the change works?
- What rollback path exists if the output is wrong?
Key terms in this lesson
End-of-lesson quiz
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