Unit Testing Windows Mobile Compact Framework Nunit

A Guide to Using NUnitLite for Unit Testing in the Compact Framework

When working on applications for the Compact Framework, developers often face challenges in unit testing. With traditional tools like MSTest provided by Visual Studio 2008, many have found the experience less than ideal—especially when struggling with slow test runners and a cumbersome debugging process. This leads us to explore other viable options, such as NUnitLite, and consider if it offers a better solution.

Understanding the Challenge

Before we dive into NUnitLite, let’s take a moment to understand what developers typically encounter with MSTest:

  • Slow Test Execution: Running tests can be painfully sluggish, impacting the overall development workflow.
  • Debugging Difficulties: Debugging tests can be a frustrating process with MSTest, leading to wasted time and resources.

Given these challenges, developers often seek alternative testing frameworks that can provide a more efficient setup. NUnitLite has come up as an option, but its perceived inactive status raises concerns among users. So, what’s the key to effective unit testing in a Compact Framework environment?

Transitioning to NUnitLite

1. Exploring NUnitLite Basics

NUnitLite is a lightweight version of the NUnit testing framework designed for running tests from a variety of platforms, including command lines, mobile apps, and even desktop applications. Although it may not have a strong online community or frequent updates, many developers have reported success in their projects. Here’s why it’s worth considering:

  • Lightweight and Simple: It’s not bloated with features you may not need, making it a straightforward choice for mobile development.
  • Integration with Existing Features: You can easily integrate NUnitLite into your existing projects without significant overhead.

2. Multi-Targeting Your Application

One effective strategy to improve your unit testing process is to multi-target your application. This involves creating a version of your mobile application that can also run on the desktop. Here’s how to implement this concept:

Benefits of Multi-Targeting:

  • Streamlined Testing: By running mobile code on the desktop, you can take advantage of a wide array of desktop testing tools that are often faster and more robust.
  • Reusable Business Logic: Keep your business logic in a separate project or assembly. This separation allows it to be tested independently, providing flexibility and efficiency.

Steps to Multi-Target:

  • Utilize Conditional Compile Tags: Use compiler directives to switch between mobile and desktop code. This not only saves time but also ensures that your tests are relevant to your mobile application’s functionalities.
  • Create Custom Project Configurations: Set up different configurations that compile and run your code against specific platforms.

3. Leveraging Test Tools with NUnitLite

By combining NUnitLite with multi-targeting, you can effectively port your testing strategy. Here are some tips to enhance your experience:

  • Isolate Tests Locally: Take advantage of the NUnitLite framework’s ability to run tests separately without a full test runner.
  • Incorporate Existing Tools: If you’re familiar with desktop testing tools, pair them with NUnitLite to manage unit tests more effectively.

Conclusion

While NUnitLite may seem less active in the community, its potential in unit testing for Compact Framework applications should not be overlooked. By embracing strategies such as multi-targeting, developers can streamline their development processes, efficient testing, and maintain high-quality applications. With these insights, you are now better equipped to enhance your testing capabilities in your next mobile project.

Whether you’re new to unit testing or looking to improve your current setup, give NUnitLite a try. You just may find it could turn your unit testing experience from cumbersome to efficient.