OUnitChooser.Plugin
val all : (int * (OUnitPlugin.name * chooser)) list ref
val register : OUnitPlugin.name -> int -> chooser -> unit
val of_name : OUnitPlugin.name -> chooser
val choice : OUnitConf.conf -> OUnitPlugin.name * chooser
val preset :
(OUnitPlugin.name * OUnitPlugin.name) list ->
(OUnitPlugin.name * OUnitPlugin.name) list