Testing applications in the cloud
The other side of cloud testing is when you have applications that, fully or partially, reside in the cloud. This is the case for serverless applications.
Serverless application
An application in which part of it is handled in the cloud—that is, there is a provider that will take care of maintenance and scalability of the (generally back-end) systems required for the application to run.
You might think that the difference between testing fully hosted applications and partially hosted applications is that you can skip some of the tests that generally would take place in those areas. However, while you could skip extensive testing for those areas, it is still important to test the stability of the system and assign contracts and verifications across it to make sure everything works as expected.
In Chapter 3, The Secret Passages of the Test Pyramid – The Middle of the Pyramid, we covered tests such as the ones just mentioned...