introspection: pixel format enum test.
introspection: pixel format enum test.

It triggers what looks like a bug in pygobject.

AnilRamachandran/aravis,AravisProject/aravis,lu-zero/aravis,lu-zero/aravis,AravisProject/aravis,AravisProject/aravis,AnilRamachandran/aravis,AravisProject/aravis,lu-zero/aravis,lu-zero/aravis,AnilRamachandran/aravis,lu-zero/aravis,AravisProject/aravis,AnilRamachandran/aravis,AnilRamachandran/aravis