RAG-Based Testing Series — Part 4: Edge Cases — What Breaks RAG & How to Catch It

Happy path testing isn't enough. Learn the edge cases that silently break RAG systems in production — empty knowledge bases, conflicting context, out-of-scope queries, and adversarial inputs — and how to test every one of them in Python.

giovedì 11 giugno 2026 New tab

3,693 words~17 min read

"Your users will never read your happy path. They will, however, find every single edge case you didn't test."

In Part 2, we tested retrieval quality — making sure the right documents are fetched.

In Part 3, we tested faithfulness — making sure the LLM uses what it retrieves instead of making things up.

Both of those tests assume one thing: the system is being used as intended.

RAG-Based Testing Series — Part 4: Edge Cases — What Breaks RAG & How to Catch It

RAG-Based Testing Series — Part 4: Edge Cases — What Breaks RAG & How to Catch It

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