Unit Testing Azure Functions | Azure Functions Next Steps

Hello and Welcome back to a brand new series on serverless hub “Azure Functions Next Steps”. I hope you enjoyed and learned from our previous series “Building Web APIs with Azure Functions”. New series is going to be a sequel to the previous series. So if you are new to the channel I suggest you checkout the series “Building Web APIs with Azure Functions”. This series is focused on topics we didn’t cover in the previous, which are essential for production ready serverless application. Let's get started. First episode of this series is going to be on unit testing. Unit testing is developers best buddy when it comes to producing quality code. Azure Functions are no exception, unit tests will help us develop functions with confidence. unit testing can be a daunting task if we don’t consider a couple of key factors at the planning stage. First step in writing a pragmatic unit test suite is to identify the test boundaries. It is crucial that we choose a boundary that encapsulates majority of our code.This will help us get maximum coverage. It's equally important to select the correct boundary so that interfaces that our code communicates to don't change much. We will learning how to use jest mocks, code coverage and assertions (expect statement). You can see github repo for with code from this episode on https://github.com/nisal-wickramage/s... master branch is at the starting state of this episode add-unit-test-demo branch is at the end state of this episode You can learn more about jest at https://jestjs.io/docs/api You can follow me on: github https://github.com/nisal-wickramage LinkedIn   / nisal-wickramage