Testing Microservice Architectures

The topics we have covered so far have gone beyond the scope of how to write tests. We have looked at a wide range of software design and development concerns, including containerization with Docker and database integration with PostgreSQL. This highlights the fact that writing good tests requires a thorough understanding of the architecture and technical dependencies of the application under test.

Alongside these software development concepts, we discussed the evolution of code in Chapter 7, Refactoring in Go. We learned some common refactoring techniques, and we compared monolithic applications with microservice architectures, which is a common evolution of Go web applications as they grow and become more mature.

We will continue our exploration of microservice architectures and refactoring from the previous chapter. As microservices are often owned and developed by different software teams, they are often changed without any central oversight...