Book Image

Learn C# Programming

By : Marius Bancila, Raffaele Rialdi, Ankit Sharma
5 (1)
Book Image

Learn C# Programming

5 (1)
By: Marius Bancila, Raffaele Rialdi, Ankit Sharma

Overview of this book

The C# programming language is often developers’ primary choice for creating a wide range of applications for desktop, cloud, and mobile. In nearly two decades of its existence, C# has evolved from a general-purpose, object-oriented language to a multi-paradigm language with impressive features. This book will take you through C# from the ground up in a step-by-step manner. You'll start with the building blocks of C#, which include basic data types, variables, strings, arrays, operators, control statements, and loops. Once comfortable with the basics, you'll then progress to learning object-oriented programming concepts such as classes and structures, objects, interfaces, and abstraction. Generics, functional programming, dynamic, and asynchronous programming are covered in detail. This book also takes you through regular expressions, reflection, memory management, pattern matching, exceptions, and many other advanced topics. As you advance, you'll explore the .NET Core 3 framework and learn how to use the dotnet command-line interface (CLI), consume NuGet packages, develop for Linux, and migrate apps built with .NET Framework. Finally, you'll understand how to run unit tests with the Microsoft unit testing frameworks available in Visual Studio. By the end of this book, you’ll be well-versed with the essentials of the C# language and be ready to start creating apps with it.
Table of Contents (20 chapters)

Chapter 17

  1. Unit testing is a type of software testing where individual units of code are tested in order to validate whether they are working as they were designed to work. Unit testing helps to identify and fix bugs early in the development cycle, therefore helping to save time and money. It helps developers to better understand the code and allows them to make changes easier. It helps with code reuse by requiring the code to be more modular in order to test it better. It can act as project documentation. It also helps with debugging because when tests fail, only the latest changes need to be checked and debugged.
  2. Visual Studio tools for unit testing are the Test Explorer (where you can view, run, debug, and analyze tests), the Microsoft unit testing framework for managed code, code coverage tools (which determine the amount of code that unit tests are covering), and the Microsoft Fakes isolation framework (which allows you to create substitutes for classes and methods).
  3. ...