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c#mockingmoq

Returning value that was passed into a method

I have a method on an interface:

string DoSomething(string whatever);

I want to mock this with MOQ, so that it returns whatever was passed in - something like:

_mock.Setup( theObject => theObject.DoSomething( It.IsAny<string>( ) ) )
   .Returns( [the parameter that was passed] ) ;

Any ideas?

Solution

  • You can use a lambda with an input parameter, like so:

    .Returns((string myval) => { return myval; });

    Or slightly more readable:

    .Returns<string>(x => x);