erikdoe/ocmock — pull request #76 by nrbrook (2014-03-19 19:46:39+00:00)
Title: Fix exception when an object has a nil description

An exception is thrown when an object parameter of an invocation has a nil description as the result of [object description] is directly passed to appendString: in the invocationDescription method. This pull request fixes the issue by returning an empty string instead of nil.