Objective-C autorelease memory management

Question

Im trying to understand when to call autorelease, and what this will actually do to my object.

After reading About Memory Management in the Mac Developer Library I under

Answer 1

How can i safely use the returned autoreleased object inside my runIt method if i dont know when the autorelease trigger?

Autorelease will trigger after the current run loop ends.

Should i retain the object returned by the createNewTest ? or can i safely use it within the runIt scope?

You can safely use it inside the runIt scope.