Book Image

The MVVM Pattern in .NET MAUI

By : Pieter Nijs
Book Image

The MVVM Pattern in .NET MAUI

By: Pieter Nijs

Overview of this book

In today's fast-paced world of modern software development, teams need to be efficient, productive, and capable of rapidly adapting to changes to deliver high-quality products, making it crucial for developers to write maintainable and easy-to-test code. The MVVM Pattern in .NET MAUI helps you to thoroughly explore the Model-View-View Model (MVVM) design pattern. The chapters show you how this pattern helps in structuring code to embrace the separation of concerns, allowing for loosely coupled user interface and application logic, which ultimately empowers you to write more robust, maintainable, and testable code. The book also highlights .NET MAUI's capabilities and features, and enables you to delve into the essential components within the framework that facilitate the application of the MVVM pattern. With the help of a sample application, this definitive guide takes a hands-on approach to walk you through both the essential and advanced usages of the MVVM pattern to ensure that you successfully apply the practical aspects of the pattern to your .NET MAUI projects. By the end of this book, you’ll have gained a comprehensive understanding of the MVVM design pattern and its relevance in the context of .NET MAUI, as well as developed the skills needed to successfully apply it in practice.
Table of Contents (20 chapters)
Free Chapter
1
Part 1: Key Concepts and Components
8
Part 2: Building a .NET MAUI App Using MVVM
13
Part 3: Mastering MVVM Development

Testing MAUI-specific code

As shown in the previous examples, the majority of our code can be tested independently of the platform. But let’s not forget that there is code in our MAUI project as well that could benefit from some unit tests.

Let’s start by adding a new project to hold our tests for the Recipes.Mobile project:

  1. Add a new xUnit Test Project type, just as we did at the beginning of this chapter. Name this project Recipes.Mobile.UnitTests.
  2. Once the project has been created, add a reference to the Recipes.Mobile project.
  3. Add the AutoBogus NuGet package to this project.

The Recipes.Mobile.UnitTests project doesn’t target any specific frameworks other than net8.0. Because of that, we need to make sure net8.0 is on the list of target frameworks of the MAUI project as well. Also, we need to make sure that when the Recipes.Mobile project targets this additional net8.0 framework, it doesn’t output an EXE file. Let’s see...