Book Image

Echo Quick Start Guide

By : Ben Huson
Book Image

Echo Quick Start Guide

By: Ben Huson

Overview of this book

Echo is a leading framework for creating web applications with the Go language.  This book will show you how to develop scalable real-world web apps, RESTful services, and backend systems with Echo.  After a thorough understanding of the basics, you'll be introduced to all the concepts for a building real-world web system with Echo. You will start with the the Go HTTP standard library, and setting up your work environment. You will move on to Echo handlers, group routing, data binding, and middleware processing. After that, you will learn how to test your Go application and use templates.  By the end of this book you will be able to build your very own high performance apps using Echo. A Quick Start Guide is a focussed, shorter title which provides a faster paced introduction to a technology. They are for people who don’t need all the detail at this point in their learning curve. The presentation has been streamlined to concentrate on the things you really need to know, rather than everything.
Table of Contents (10 chapters)

External behavior and integration testing

As seen, the creation of unit tests and benchmark tests within Go is very simple and intuitive. The built in go test command allows various coverage capabilities. A little known capability of the go test tool is the ability to specify which packages you wish to generate coverage information about with the -coverpkg flag. Armed with this information, we can formulate a go test command that will be able to run against the main package in our program but collect coverage information about our handlers package:

go test -coverprofile=cov.txt -coverpkg ./handlers -run TestRunMain ./cmd/service/

The preceding command is saying run tests against the main package but collect the coverage information from handlers that in turn will use the cover tool to instrument the handlers code to keep track of coverage numbers in the handlers package. If we...