VCR util for unit tests#25
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Andrew Kent (realark) merged 2 commits intomainfrom Jan 6, 2026
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David Elner (@delner) -- this is follow-up from the langchain PR. I ended up making my own span exporter that allows waiting for spans without sleeping
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swap out explicit mocks with VCR util to record+replay AI provider endpoints
tests are mostly unchanged. I had to update a few assertions to account for non-deterministic responses from the AI vendors (e.g. assert > 0 tokens instead of an exact token count).
also swaped out the test harness span exporter with a custom unit test span exporter which allows waiting for a min span count