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Go Programming - From Beginner to Professional

Go Programming - From Beginner to Professional - Second Edition

By : Samantha Coyle
4.5 (14)
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Go Programming - From Beginner to Professional

Go Programming - From Beginner to Professional

4.5 (14)
By: Samantha Coyle

Overview of this book

Go Programming – From Beginner to Professional is a comprehensive guide that takes your proficiency in the Go programming language from novice to expert. Starting with fundamental concepts, this book covers variables, command-line tools, and working with data before delving into advanced concepts, including error handling, interfaces, and generics, harnessing Go’s latest features through hands-on exercises. Along the way, you’ll learn to structure projects using Go modules, manage packages effectively, and master debugging techniques. As you progress, you’ll get to grips with practical application-centric aspects such as command-line programming, file manipulation, and working with SQL databases. Additionally, the book explores web server development, RESTful APIs, and utilizing the Go HTTP client to interact with web applications. Further enhancing your Go skills, you’ll learn concurrent programming, testing methodologies, Go tools, and how to deploy applications in the cloud. Throughout the book, you’ll uncover Go’s hidden gems and gain insights into time manipulation, best practices, and more. By the end of this book, you’ll have worked through practical exercises and activities that’ll equip you with the knowledge and skills needed to excel as a proficient Go developer, primed for success in real-world projects.
Table of Contents (30 chapters)
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1
Part 1: Scripts
6
Part 2: Components
11
Part 3: Modules
16
Part 4: Applications
20
Part 5: Building For The Web
23
Part 6: Professional

Test suites

Test suites organize multiple related tests into a cohesive unit. The testing package in Go supports test suites that use the TestMain function and the testing.M type. TestMain is a special function that can be used to perform setup and teardown logic for the entire test suite. This is particularly useful when you need to set up resources or configurations that are shared across multiple test suites.

Exercise 19.04 – using TestMain to execute several test functions

Consider a scenario where you have multiple test functions that you want to be grouped into a test suite. Let’s see how that can be done using the native Go test framework:

  1. Create a new folder in your filesystem, and, inside it, create a main_test.go file and write the following:
    package main
    import (
      "log"
      "testing"
    )
  2. Define a setup and teardown function:
    func setup() {
      log.Println("setup() running")
    }
    func teardown...
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Go Programming - From Beginner to Professional
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