add test for bytearray variants
add test for bytearray variants

pexip/pygobject,thiblahute/pygobject,davibe/pygobject,davibe/pygobject,davibe/pygobject,choeger/pygobject-cmake,MathieuDuponchelle/pygobject,pexip/pygobject,pexip/pygobject,GNOME/pygobject,davibe/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,thiblahute/pygobject,davidmalcolm/pygobject,davidmalcolm/pygobject,GNOME/pygobject,davidmalcolm/pygobject,sfeltman/pygobject,sfeltman/pygobject,sfeltman/pygobject,jdahlin/pygobject,choeger/pygobject-cmake,jdahlin/pygobject,GNOME/pygobject,choeger/pygobject-cmake,jdahlin/pygobject,MathieuDuponchelle/pygobject