The need for testing Lambda function

If you are new to the world of testing or don't write test cases, then you may be thinking "Hey, I am here to write and develop Lambda functions, why do I even need to read this chapter, right?" Well, not so right. Testing is a very crucial part of any code development and should be enforced at all times. The reason is that, tests are an effective way of documenting your codebase and they can also act as a safeguarding mechanism which ensures that only code that is working as expected, and nothing else, is pushed into a production environment.

There are a variety of different tests that you can run on your code, however, for simplicity we can always refer the following test pyramid as a reference:

Note

To know more about the test pyramid, check out this link https://martinfowler.com/bliki/TestPyramid.html.

The following image depicts the three basic steps that you as a developer have to keep in mind when developing Lambda functions:

• Unit Tests: A unit test...