Test-Driven Development in Go: A practical guide to writing idiomatic and efficient Go tests through real-world examples

Explore Go testing techniques and leverage  TDD to deliver and maintain microservices architecture, including  contract, end-to-end, and unit testing
Purchase of the print or Kindle book includes a free PDF eBook

Key Features

• Write Go test suites using popular mocking and testing frameworks
• Leverage TDD to implement testing at all levels of web applications and microservices architecture
• Master the art of writing tests that cover edge cases and concurrent code

Book Description

Experienced  developers understand the importance of designing a comprehensive  testing strategy to ensure efficient shipping and maintaining services  in production. This book shows you how to utilize test-driven  development (TDD), a widely adopted industry practice, for testing your  Go apps at different levels. You’ll also explore challenges faced in  testing concurrent code, and learn how to leverage generics and write  fuzz tests.

The book begins by teaching you how to use TDD to tackle  various problems, from simple mathematical functions to web apps. You’ll  then learn how to structure and run your unit tests using Go’s standard  testing library, and explore two popular testing frameworks, Testify  and Ginkgo. You’ll also implement test suites using table-driven  testing, a popular Go technique. As you advance, you’ll write and run  behavior-driven development (BDD) tests using Ginkgo and Godog. Finally,  you’ll explore the tricky aspects of implementing and testing TDD in  production, such as refactoring your code and testing microservices  architecture with contract testing implemented with Pact. All these  techniques will be demonstrated using an example REST API, as well as  smaller bespoke code examples.

By the end of this book, you’ll have  learned how to design and implement a comprehensive testing strategy for  your Go applications and microservices architecture.

What you will learn

• Create practical Go unit tests using mocks and assertions with Testify
• Build table-driven test suites for HTTP web applications
• Write BDD-style tests using the Ginkgo testing framework
• Use the Godog testing framework to reliably test web applications
• Verify microservices architecture using Pact contract testing
• Develop tests that cover edge cases using property testing and fuzzing

Who this book is for

If  you are an intermediate-level developer or software testing  professional who knows Go fundamentals and is looking to deliver  projects with Go, then this book is for you. Knowledge of Go syntax,  structs, functions, and interfaces will help you get the most out of  this book.

1. Product Information Document
2. Getting to Grips with Test-Driven Development
3. Unit Testing Essentials
4. Mocking and Assertion Frameworks
5. Building Efficient Test Suites
6. Performing End-to-End Testing
7. End-to-End Testing the BookSwap Web Application
8. Refactoring in Go
9. Testing Microservice Architectures
10. Challenges of Testing Concurrent Code
11. Testing Edge Cases
12. Working with Generics