Testing Java Microservices: Boundary Conditions in Unit Testing Microservices

[meenakshi sundar]

How does unit testing microservices compare to unit testing traditional applications
where the boundary is normally defined as the individual functions within classes
and how do we draw the boundary here in testing microservices for unit testing?

Thanks
Sundar

[Jason Porter]

You can draw that boundary in many places, even in "traditional testing." Do you stop testing at the network level, database, firewall, etc? There isn't necessarily a right or wrong place to draw that boundary. There are tradeoffs at each area. More important is to find what works for you and your team and stick to it. It is helpful, however, to have tests of some kind that will target each point of failure.