def test_iadd(self, evt):
        rval = event.ReturnValue(append_events=[evt])
        rval2 = event.ReturnValue(eat=True, append_events=[evt])
        rset = event.ResultSet()

        rset += rval
        rset += rval2
        rset += None
        assert rset.eat
        assert rset.append_events == [evt, evt]
def draw(self, context):
        layout = self.layout

        split = layout.split()
        row = split.row()
        row.label("")
        row = split.row()
        row.label("Interaction:")

        text = bpy.path.display_name(context.window_manager.keyconfigs.active.name)
        if not text:
            text = "Blender (default)"
        row.menu("USERPREF_MT_appconfigs", text=text)