Who should read it: It is for you if you are looking for an overview of this topic for a project, to conduct/appear in an interview, or in general. As we learn more, we will update this article.

What is Test Pyramid: Test Pyramid is a way to plan the testing efforts on an application. As per this concept, efforts are:

• Highest in unit Testing
• Middle level in Service testing
• Lowest in UI testing

These are key points:

• Write tests with different granularity.
• The more high level we go, we should have less test cases.

Different types of tests:

Unit Tests: Stick to one test class per production class. Test the public interface of the class.We can ignore private methods.

Integration Tests: Testing the applications end-to-end.

Contract Tests: It means testing different services via certain interfaces. Contract testing is a way to ensure different services can communicate with each other. Some examples of contract testing tools are OpenAPI, Pact, Postman collections, RAML, and API Blueprint.

UI Tests:  Typically, it means a web interface in the context of web applications.