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: Unit Testing

Throughout this book, you have learned all you need to know to be able to program using the C# language—from statements to classes, from generics to functional programming, from reflection to concurrency, and many others. We also covered many topics related to .NET Framework and .NET Core, including collections, regular expressions, files and streams, resource management, and Language Integrated Query (LINQ).

However, a key aspect of programming is making sure that code behaves as intended. Code that is not properly tested is prone to unexpected bugs. There are various types and levels of testing, but the one typically performed by developers while developing is unit testing. This is the topic covered in this final chapter of this book. In this chapter, you will learn what unit testing is and what are the built-in tools available to write unit tests for C#. Then, we will look in detail at how we can leverage these tools to unit test our C# code.

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