In this video, Liam Hampton demonstrates how developers can use GitHub Copilot with Prompt-driven Development workflows in Visual Studio Code to write and run automated test suites, including end-to-end, unit, and integration tests.

Generate a Test Suite with GitHub Copilot and Prompt-Driven Development

Featuring: Liam Hampton
Presented by: Visual Studio Code Team

This tutorial video showcases how to rapidly create comprehensive test suites using GitHub Copilot and prompt-driven development (PDD) techniques within Visual Studio Code. The session includes:

Topics Covered

• **Introduction to Prompt-Driven Development (PDD)😗*

  • Understand how prompt-driven techniques streamline software testing in VS Code.

• App Overview:

  • Overview of the application under test and its main functionality.

• Creating Test Files with Copilot:

  • Step-by-step process to scaffold new test files using natural language prompts in the VS Code editor.

• Writing Various Types of Tests:

  • Demonstrates writing end-to-end tests, unit tests, and integration tests.
  • Focus on API integration and edge case coverage using Copilot-assisted suggestions.
  • Mocking strategies for complex dependencies.

• Assembling the Test Suite:

  • Combines individual tests into a cohesive suite.
  • Shows practical tips for organizing and maintaining readable test code.

• Running and Validating Tests:

  • Executes the test suite inside VS Code and reviews test results.

Additional Resources

• Prompt-driven Development Series Playlist

Key Takeaways

• How prompt engineering can be used to drive Copilot to generate effective test code.
• Strategies for ensuring comprehensive automated test coverage in API-based applications.
• Using Copilot inside Visual Studio Code to increase productivity in developer workflows.

Follow and Connect:

• Visual Studio Code on X (Twitter)
• VS Code on Bluesky
• YouTube: Visual Studio Code
• LinkedIn Showcase
• GitHub Repository

Chapters:

• 00:00 Intro
• 00:25 What is our app doing
• 01:42 Creating test files with Copilot
• 04:47 Writing tests using mocking strategy
• 09:42 Create the test suite
• 11:04 Running our test
• 13:13 In summary
• 13:42 Wrap