Expanded unit test to include the (currently failing) case of multiple instances per class
Expanded unit test to include the (currently failing) case of multiple instances per class

sandyway/libextobjc,bboyesc/libextobjc,goodheart/libextobjc,WPDreamMelody/libextobjc,sanojnambiar/libextobjc,kolyuchiy/libextobjc,KBvsMJ/libextobjc,telly/libextobjc,sunfei/libextobjc,liuruxian/libextobjc,jiakai-lian/libextobjc