How to install and set up FlaUI in Visual Studio?

Install the appropriate NuGet package (FlaUI.UIA2 or FlaUI.UIA3) based on your application type, then reference it in your code and use the automation classes as shown in the usage examples for launching and interacting with apps.

FlaUI vs TestStack.White: which is better for UI testing?

FlaUI offers a cleaner, more modern codebase with dual UIA support out of the box, while TestStack.White is older and may have compatibility issues; FlaUI is generally preferred for new projects seeking reliability and maintainability.

Does FlaUI work with Windows Store Apps?

Yes, FlaUI supports Windows Store Apps using the UIA3 library, as UIA3 is designed for newer applications like WPF and Store Apps, but ensure compatibility with specific Windows versions as noted in the documentation.

How to find and click a button using FlaUI?

Use methods like FindFirstDescendant with conditions (e.g., ByText) to locate elements, then invoke actions such as Invoke on the button, as demonstrated in the calculator example code in the README.

Can FlaUI be integrated with testing frameworks like NUnit?

Yes, FlaUI can be used with any .NET testing framework like NUnit or xUnit by writing test methods that incorporate FlaUI's API for UI interactions, similar to how FlaUI's own UI tests are structured.

What are common pitfalls when using FlaUI with WinForms?

Avoid using UIA3 for WinForms due to known bugs; instead, use UIA2 for better compatibility, and refer to the FAQ for workarounds if issues arise during element detection or interaction.

Open-Awesome

FlaUI

MITC#v5.0.0

A .NET library for automated UI testing of Windows applications using Microsoft's UI Automation framework.

GitHub

3.1k stars443 forks0 contributors

What is FlaUI?

FlaUI is a .NET library for automated UI testing of Windows applications, including Win32, WinForms, WPF, and Store Apps. It wraps Microsoft's native UI Automation libraries (UIA2 and UIA3) to provide a reliable and modern framework for interacting with and validating UI elements programmatically.

Target Audience

.NET developers and QA engineers who need to automate testing for Windows desktop applications, particularly those working with WinForms, WPF, or Store Apps and seeking a free, open-source alternative to commercial tools.

Value Proposition

Developers choose FlaUI for its clean, maintainable codebase, dual support for UIA2 and UIA3 to handle different application types, and its focus on being a straightforward wrapper around Microsoft's UI Automation libraries without unnecessary complexity.

Overview

UI automation library for .Net

Use Cases

Best For

Automating UI tests for WinForms applications with UIA2 compatibility
Testing WPF or Windows Store Apps using the newer UIA3 library
Creating reliable test automation for legacy Windows applications
Integrating UI testing into .NET-based CI/CD pipelines
Replacing commercial tools like TestComplete or Ranorex with an open-source solution
Developing custom test frameworks for Windows desktop software

Not Ideal For

Testing non-Windows applications such as web or mobile apps
Teams using programming languages other than .NET (e.g., Python, Java)
Projects requiring built-in test recording or graphical automation interfaces
Simple automation tasks where lightweight scripting tools like AutoHotkey suffice

Pros & Cons

Pros

Dual UIA Support

Allows switching between UIA2 and UIA3 to handle different Windows application types, addressing compatibility issues as highlighted in the README's FAQ section.

Clean Modern Codebase

Rewritten from scratch for better maintainability and collaboration, improving upon older projects like TestStack.White, as stated in the introduction.

Comprehensive Wrapper

Covers almost all UI Automation functionality while exposing native objects for advanced use cases, ensuring flexibility for uncovered scenarios.

Application Control Helpers

Provides methods to launch, attach to, and close applications, simplifying test setup and teardown, as shown in the code examples.

Cons

WinForms UIA3 Bugs

UIA3 has known compatibility issues with WinForms applications, requiring developers to fall back to UIA2 for reliable testing, as admitted in the README.

Code-Only Automation

Lacks built-in test recording or GUI tools, making it less accessible for teams preferring codeless or visual testing approaches without additional tooling.

Limited Ecosystem

Has fewer integrations, plugins, and community resources compared to commercial solutions like TestComplete, which might increase development overhead for complex setups.

Open Source Alternative To

FlaUI is an open-source alternative to the following products:

CodedUI

CodedUI is a Microsoft testing framework for automated UI-driven functional testing of Windows applications.

TestComplete

An automated UI testing tool by SmartBear for functional testing of desktop, web, and mobile applications across various platforms.

Ranorex

Ranorex is a commercial test automation framework for desktop, web, and mobile applications that provides GUI testing with recording and scripting capabilities.

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