Book Image

Mastering Blazor WebAssembly

By : Ahmad Mozaffar
3.5 (2)
Book Image

Mastering Blazor WebAssembly

3.5 (2)
By: Ahmad Mozaffar

Overview of this book

Blazor WebAssembly is a revolutionary technology in software development that enables you to develop web applications with a rich user interface using C# without JavaScript. It can be run natively in the browser and soon on mobile apps with .NET MAUI, making it a superweapon in the .NET developer’s toolbox. This capability has opened the doors for the JavaScript community to have a stable framework to build single page applications (SPAs) maintained by Microsoft and driven by the community. Mastering Blazor WebAssembly is a complete resource that teaches you everything you need to build client-side web applications using C# & .NET 7.0. Throughout this book, you’ll discover the anatomy of a Blazor WebAssembly project, along with the build, style, and structure of the components. You’ll implement forms to catch user input and collect data, as well as explore the topics of navigating between the pages in depth. The chapters will guide you through handling complex scenarios like RenderTrees, writing efficient unit tests, using variant security methods, and publishing the app to different providers, all in a practical manner. By the end of this book, you’ll have the skills necessary to build web apps with Blazor WebAssembly, along with the basics for a future in mobile development with .NET MAUI and Blazor.
Table of Contents (21 chapters)
1
Part 1: Blazor WebAssembly Essentials
5
Part 2: App Parts and Features
13
Part 3: Optimization and Deployment

Writing component unit tests with bUnit

We have seen the basic tests written by default in the bUnit template. In this section, we will start creating our own tests. We’ll write a test for the ModalPopup component we developed in the Developing templated components section in Chapter 3, Developing Advanced Components in Blazor.

Writing the first component unit test

ModalPopup is a good starting point for us as it doesn’t have dependencies and it has some parameters, so we can learn how to pass parameters to a CUT.

Let’s get started:

  1. In the BooksStore.Tests project, add the BooksStore namespaces needed inside _Imports.razor so we don’t need to reference them in each test file we have:
    ...@using BooksStore.Shared@using BooksStore.Models@using BooksStore.Services
  2. Create a new Razor component and name it ModalPopupTests.razor.
  3. Remove any markup and make the component inherit from the TestContext class:
    @inherits TestContext@code {}
  4. Inside...