Support for "mocking" without playback

[mkotsbak]

In cases you have integration tests and use them to capture real method invocations, using the original tests as unit tests I believe can give better indications of what failed and why than just dumb playback of the methods called by the test.

Using both can be useful, but if you just want to use it this way, the record data is not really necessary to save (as they are "played back" by the tests).