as a developer I am used to write Unit tests as well as Integration Tests. I have been working with a microservice architecture in which there are around 20 single responsibility services/functions. Each service is tested (Unit Tests and integration tests) and contracts are clearly written in terms of expected input and output, but we have never actually written Integration tests at the "microservice architecture level". Are they any recommended approaches or strategies? Anything that should be taken into account when testing integration between multiple functions/services?
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