Added unit test method into header
Added unit test method into header

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