Скачать или смотреть How to Successfully Profile Unit Tests in Visual Studio 2019

Discover how to resolve the error while profiling .NET Core unit tests in Visual Studio 2019 and improve your testing performance effectively.
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Profiling Unit Tests in Visual Studio 2019: A Comprehensive Guide

In the world of software development, performance testing is crucial. However, things can get tricky when trying to profile unit tests, particularly in Visual Studio 2019. If you’ve encountered the frustrating error message that says, “File contains no data buffers,” you’re not alone.

In this guide, we will walk you through why this issue happens and how to resolve it effectively so that you can profile your unit tests successfully.

The Problem: Profiling Unit Tests

You’ve written your unit tests and are now ready to analyze their performance. However, when you try to profile a test by right-clicking and selecting “Profile,” it runs the test but then produces an error with no data to show. This can leave you confused and searching for solutions.

Understanding the Context

Test Frameworks: You mentioned using NUnit 3.12.0 with NUnit3TestAdapter 3.15.1.

Framework Versions: You are working with a netcoreapp3.1 test project that interfaces with a netstandard2.0 project.

The Solution: Steps to Enable Profiling

Here’s a structured approach to address the profiling error in Visual Studio:

1. Full Debugging Symbols

To profile .NET Core tests successfully, you need to ensure that full Program Database (PDB) files are generated. This means you should adjust some settings in your project.

Modify the .csproj File:

Open the project file of the component you want to profile and add the following property group:

[[See Video to Reveal this Text or Code Snippet]]

This tells Visual Studio to output the full debug information required for profiling.

2. Use Directory.Build.props

If you have multiple projects, consider using a Directory.Build.props file to set the debugging options globally for all relevant projects. Place the above code in this file to apply the settings to every child project within the directory.

3. Update Your Test SDK

Ensure that you have the latest version of the test SDK. Updates can fix bugs or issues regarding profiling. Make sure your development environment is current.

4. Set Processor Architecture

For any projects you are working with, pay attention to the processor architecture setting. Here’s how you can adjust this setting:

Navigate to your project properties.

Find the option for “Processor Architecture for AnyCPU projects.”

Set it to “Auto.”

Conclusion

Now you are equipped with the knowledge to tackle the profiling challenges in Visual Studio 2019 effectively. By making sure you have full debugging symbols, using Directory.Build.props where applicable, updating your SDK, and adjusting your project’s processor architecture settings, you can profile your unit tests without the frustrating data error.

Don’t hesitate to reach out or leave a comment if you have further questions or need more clarifications! Happy coding!