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Contributing to Stryker.NET

This is the contribution guide for Stryker.NET. Great to have you here! Here are a few ways you can help make this project better.

Creating issues

Do you have an idea for a feature or have you found a bug? Please create an issue so we can talk about it! If you found a bug, please run dotnet stryker --log-console debug and add the output of the Stryker run to the issue.

Adding new features

New features are welcome! Either as requests or proposals.

  1. Please create an issue first, so we know what to expect from you.
  2. Create a fork on your github account.
  3. When writing your code, please conform to the Microsoft coding guidelines
  4. Please create or edit unit tests or integration tests.
  5. Run the tests and verify they pass

Setup Stryker.NET locally

While developing on Stryker.NET we advise to work in the latest Visual Studio and to set Stryker up to run on a UnitTest project on your local disk.

Example: Steps to run Stryker on Stryker

  • Clone the repository https://github.com/stryker-mutator/stryker-net.git
  • Open Stryker.CLI.sln
  • On Stryker.CLI open properties > Debug
  • Create a new Debug profile
  • Set Launch as Project
  • Set WorkingDirectory as your local installation dir, pointing to a UnitTest project example: (C:\Repos\stryker-net\src\Stryker.Core\Stryker.Core.UnitTest)
  • Run the program with Stryker.CLI as the startup project with the newly created Debug profile

Compiler Platform SDK

We advise to use the .NET Compiler Platform SDK during development. The Syntax Visualizer can help to understand Abstract Syntax Trees and find out types of SyntaxNodes you need to target for certain mutators.

Maintainers

When merging pull requests or creating commits, please conform to the angular commit message style, so our changelog will be updated. Namely in the form <type>(<scope>): <subject>\n\n[body]

  • Type: feat, fix, docs, style, refactor, test, chore.
  • Scope: the file or group of files (not a strict right or wrong)
  • Subject and body: present tense (changedchange, addedadd) and include motivation and contrasts with previous behavior

Community

Do you want to help? Great! These are a few things you can do:

  • Evangelize mutation testing. Mutation testing is still relatively new, especially in .NET Core. Please help us get the word out there!
  • Share your stories in blog posts an on social media. Please inform us about it! Did you use Stryker? Your feedback is very valuable to us. Good and bad! Please contact us and let us know what you think