Java EE 8 and Angular

Understanding the testing pyramid

Testing a microservice architecture, which can be composed of multiple services, is different from how we test a monolith. But that doesn't mean that the knowledge and tooling used traditionally are no longer applicable. When you get into automated testing, you may come across the term testing pyramid.

The term test automation pyramid was introduced by Mike Cohn in his book, Succeeding with Agile. It is also commonly referred to as just a test pyramid.

This idea can be used to build a common understanding about the three kinds of tests we should write and the cost associated with each. Here's the pyramid with some hints about the number of tests and the cost for the layers shown:

Test pyramid: Unit, integration ...