Programming with GitHub Copilot

CHAPTER 6Writing Tests with Copilot

Testing is a cornerstone of software development, ensuring that code not only works as intended but also is robust and reliable. In this context, GitHub Copilot emerges as a transformative tool, offering developers an AI-powered assistant capable of streamlining the testing process. Through its ability to suggest, generate, and refine test cases, GitHub Copilot enhances both the efficiency and coverage of software tests.

This chapter aims to explore the practical benefits of leveraging GitHub Copilot for writing tests. From unit and integration tests to more specific scenarios like testing regular expressions and form input validators, we'll demonstrate how GitHub Copilot can accelerate the creation of comprehensive test suites.

• Establishing the Example Project
• Adding Unit Tests to Existing Code
• Exploring Behavior-Driven Development with Copilot

Establishing the Example Project

If you would like to follow along with this coding example, you can download a copy of the starter project todo-api-ch06-starter in the Chapter 6 folder.

www.wiley.com/go/programminggithubcopilot

The project example you will be using is a simple to-do application. In this first section, you will be setting up the application programming interface (API) for the project so that you can see how GitHub Copilot can facilitate creating several different types of tests for a back-end API.

The API project used in this chapter is a NestJS API. This framework provides a ...