samitrimal / refactoring-dotnet

An example project demonstrating cleaning up legacy code and improving testability

refactoring-dotnet

An example project demonstrating cleaning up legacy code in a .NET Core MVC project

This repository was created for the Productive Dev YouTube series on refactoring legacy code (here's the link).

Key concepts

• Improving testability
• Inversion of control via dependency injection
• Message-sending between objects
• Making smaller things
• Improving naming
• Extracting configuration
• Programming to abstractions instead of implementations
• Replacing conditional logic with polymorphism
• Using factory methods
• Using async / await
• Using Task.FromResult for non-asynchronous overiddes of Task methods
• Writing unit and integration tests
• Monitoring code quality using static code analysis
• Creating a continuous integration loop

To Follow along via YouTube series

The main branch contains the result of refactoring the legacy code. The legacy_code branch contains the starting point of the project, from where the refactoring begins.

• Clone the repository
• Checkout the legacy_code branch
• Complete the refactor