Unit Testing LLMs: Evaluating LLM Quality in .NET with `Microsoft.Extensions.AI.Evaluation`

How do we unit test an LLM that never gives the same answer twice? Microsoft.Extensions.AI.Evaluation makes it easy. This is Part 4 of our Microsoft.Extensions.AI series. In Part 1 we built a chat app with IChatClient &#x2014; but how do we know its answers are