How can I refactor static classes in my code?

How can I refactor static classes in my code?

Refactoring static classes often involves converting them into instance classes or using dependency injection. What specific issues are you facing?

I'm worried about losing the singleton pattern if I convert it to an instance class.

You can maintain the singleton pattern by ensuring that the constructor is private and providing a static method to access the instance.

Can you show me an example of that?

Sure! Here's a simple example:

public class Singleton {
    private static Singleton instance;
    private Singleton() {}

    public static Singleton Instance {
        get {
            if (instance == null) {
                instance = new Singleton();
            }
            return instance;
        }
    }
}

That makes sense! What about testing this class?

You can use mocking frameworks to test the singleton class without instantiating it directly, ensuring your tests remain isolated.