I've tried the solution described here and here, namely copying a QuickTime movie to ~/Library/Application Support/iPhone Simulator/User/Media/DCIM/100APPLE/VID_0001.m4v
, but this doesn't seem to do anything, and I'm guessing something's changed since iOS 3.2 to make it not work.
Note that I'd very much prefer a solution that doesn't involve adding code to my app, unless that really is the only way to do it.
ETA: I know that it's possible to include video files as a resource; what I want is to add video files to the camera roll -- as can be done with photos by (for instance) saving images from Safari -- so I can test functionality that involves picking media files.
Updated again: If somebody can definitively tell me it's not possible, with references, that would be helpful too.