CODEWITHSUNDEEP
c#.net.net-core
Jairo
Jairo

Reputation: 426

How can I check wether a method is recursive in a test in .Net core?

I've got a simple test suite in .Net core, I would like to test wether a static non-virtual method is recursive. How could I do that?

This is the class I have: 

using System;

namespace Fibonacci
{
    public class Fibonacci
    {
        public static int GetNumber(int n)
        {
            if (n < 0) throw new ArgumentException("Number mustn't be negative");

            var previousValue = 1;
            var currentValue = 0;

            var result = currentValue;

            for (var i = 0; i < n; i++)
            {
                result += previousValue;
                previousValue = currentValue;
                currentValue = result;
            }

            return result;
        }
    }
}

The purpose is to test if a method of that class, with the exact same signature, but a different implementation, is recursive.

Upvotes: 1

Views: 253

Answers (1)

Paul Ballew
Paul Ballew

Reputation: 84

If you're able to add an attribute the method you want to call, you could use an interceptor pattern. Check out TinyInterceptor for an example: https://github.com/Jalalx/TinyInterceptor With it you can get before and after method calls and use a global count to detect any calls > 1.

If you can't add an attribute, you may be able to use reflection.emit to add the attribute dynamically. See https://learn.microsoft.com/en-us/dotnet/api/system.reflection.emit

Hope this helps, Paul

Upvotes: 1

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