Summary Bringing this all together, what I have outlined here is a holistic approach to testing that hopefully gives you some general guidance on how to proceed when testing your own systems. To reiterate the basics: Optimize for fast feedback, and separate types of tests accordingly. Avoid the need for end-to-end tests wherever possible by using consumer-driven contracts. Use consumer-driven contracts to provide focus points for conversations between teams. Try to understand the trade-off between putting more effort into testing and detecting issues faster in production (optimizing for MTBF
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