Convert to use mimic for mocking calls #155
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- updated LLMChain tests - removed special test handling code from ChatOpenAI - setup test helper
- removed production test code from ChatBumblebee - removed from ChatMistral - removed from ChatAnthropic - removed from OpenAIImage - removed LangChain.Utils.ApiOverride - migrated more tests to use mimic - TextToTitleChain tests - RoutingChain tests - ChatBumblebee tests
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This change includes the Mimic testing library for mocking out live calls and forcing a specific return value.
Originally, was using
LangChain.Utils.ApiOverridewhich provided process-level result overrides. However, it had the negative requirement of requiring testing-aware to be in the production code, specifically in the ChatXYZ.call functions.Using Mimic removes that requirement, keeping the production level code cleaner.
The selection of Mimic started in PR #154. I tried out Mimic and liked it well enough.