To test an API in the development set of service collection microservice platform, you can use DevTest and DevOps for microservice solutions . DevTest is a software development approach that integrates testing early in the development phase to speed development. DevOps is a set of practices that combine software development and IT operations to shorten the development cycle and provide high-quality continuous delivery .

You can also use enterprise-grade automation tools like SoapUI Pro or any other API testing tool to test all probable scenarios like looping over different test cases or microservice endpoints with different data sets.