Build and improve

Test normal and edge cases

Build a compact test set that finds failures before users do.

Lesson time: 18 minutes

In this lesson

The test matrix

Test a normal case, missing input, ambiguity, out-of-scope request, instruction override attempt, and a case that requires admitting uncertainty.

Consistent evaluation

Score every result against the same criteria: accuracy, completeness, format compliance, safety, and actionability. Use pass or fail with a short note.

Fix the pattern, not the example

When a case fails, change the general rule behind it and rerun the entire set to avoid breaking previously successful cases.

Key takeaways

✓Test before launch.
✓Use consistent criteria.
✓Rerun tests after every change.

Practice now

Create six test cases from the listed types and record the expected result and reason for pass or failure.