Book Image

Go Programming Cookbook - Second Edition

By : Aaron Torres
Book Image

Go Programming Cookbook - Second Edition

By: Aaron Torres

Overview of this book

Go (or Golang) is a statically typed programming language developed at Google. Known for its vast standard library, it also provides features such as garbage collection, type safety, dynamic-typing capabilities, and additional built-in types. This book will serve as a reference while implementing Go features to build your own applications. This Go cookbook helps you put into practice the advanced concepts and libraries that Golang offers. The recipes in the book follow best practices such as documentation, testing, and vendoring with Go modules, as well as performing clean abstractions using interfaces. You'll learn how code works and the common pitfalls to watch out for. The book covers basic type and error handling, and then moves on to explore applications, such as websites, command-line tools, and filesystems, that interact with users. You'll even get to grips with parallelism, distributed systems, and performance tuning. By the end of the book, you'll be able to use open source code and concepts in Go programming to build enterprise-class applications without any hassle.
Table of Contents (16 chapters)

Behavior testing using Go

Behavior testing or integration testing is a good method of implementing end-to-end black box testing. One popular framework for this type of testing is Cucumber (https://cucumber.io/), which uses the Gherkin language to describe the steps to a test in English, and then implements those steps in code. Go has a Cucumber library as well (github.com/DATA-DOG/godog). This recipe will use the godog package to write behavior tests.

Getting ready

Configure your environment according to these steps:

  1. Refer to the Technical requirements section at the beginning of this chapter.
  2. Run thego get github.com/DATA-DOG/godog/cmd/godog command.

How to do it...

These steps cover writing and running your application:

  1. From your Terminal or console application,createa new directory called~/projects/go-programming-cookbook/chapter9/bdd, and navigate to this directory.
  2. Run the following...