.NET MAUI Testing

Learn how to effectively test your .NET MAUI applications.

Introduction to MAUI Testing

Testing is a crucial part of the software development lifecycle. For .NET MAUI applications, robust testing ensures stability, reliability, and a great user experience across multiple platforms. This section provides a comprehensive guide to various testing strategies and tools you can use.

Unit Testing

Unit tests focus on verifying small, isolated pieces of your application's logic. They are fast and help catch bugs early.

• Introduction to Unit Testing in MAUI

  Understand the principles and setup for unit testing your MAUI components.

• Mocking Dependencies with Moq

  Learn how to use the Moq library to isolate your code and create mock objects for dependencies.

• Writing Your First Unit Test

  A step-by-step guide to writing and running your first unit test for a MAUI ViewModel.

UI Testing

UI tests automate interactions with your application's user interface, simulating user actions and verifying visual results.

• Introduction to UI Testing with Appium

  Get started with Appium for cross-platform UI automation in .NET MAUI.

• Automating User Workflows

  Create test scripts to simulate common user journeys within your MAUI app.

• Making Assertions in UI Tests

  Learn how to validate UI elements and application state during UI tests.

Integration Testing

Integration tests verify the interaction between different components or services of your application.

• Overview of Integration Testing

  Understand how to test the integration of your MAUI app with backend services or other modules.

Test-Driven Development (TDD)

Explore the principles of TDD and how it can be applied to MAUI development to build more robust and well-tested applications from the ground up.

• Principles of TDD for MAUI

  Understand the "Red-Green-Refactor" cycle in the context of MAUI development.

Code Example: A Simple Unit Test

Here's a basic example of a unit test for a simple MAUI ViewModel:

using Xunit;
using YourApp.ViewModels; // Replace with your actual namespace

public class CounterViewModelTests
{
    [Fact]
    public void Increment_IncreasesCounterValue()
    {
        // Arrange
        var viewModel = new CounterViewModel();
        int initialCount = viewModel.Counter;

        // Act
        viewModel.IncrementCommand.Execute(null);

        // Assert
        Assert.Equal(initialCount + 1, viewModel.Counter);
    }
}