Moq - Need mocked function to return value passed in

Question

I have a mock that i have setup like this. I need to return the same value that was passed in to .CreatePersonName

mock.Setup(m => m.CreatePersonName(It.IsAny<PersonName>()))             .Returns(// what do i put here?); 

Answer 1

mock.Setup(m => m.CreatePersonName(It.IsAny<PersonName>()))             .Returns((PersonName p) => p); 

Based on:

// access invocation arguments when returning a value mock.Setup(x => x.DoSomething(It.IsAny<string>()))                 .Returns((string s) => s.ToLower()); 

from https://github.com/Moq/moq4/wiki/Quickstart