Although we are predominantly talking and discussing about Node.js throughout this book, the concepts and terminologies still apply to the other supported languages as well. For example, running unit and integration tests on your Java function code using JUnit, running simulated load tests with Apache JMeter, and so on. Make sure you try it out.
There are also ways in which you can completely automate the build, test, and deployment of your functions using a continuous integration and continuous deployment (CICD) pipeline. This involves using tools such as subversion or Git with a continuous integration tool or an automation server such as Jenkins. The flow is pretty straightforward. Whenever a developer commits code into Git, it triggers a Jenkins job workflow that runs a bunch of predefined unit tests across the code. If the code passes the tests, then...