Added unit tests for validators
Added unit tests for validators

ggerman/revel,vahid-sohrabloo/revel,w4ngyi/revel,salixvideo/revel,marklap/revel,webdev1001/revel,revel/revel,folpindo/revel,lili2311/revel,pathirana/revel,jenalgit/revel,folpindo/revel,cw2018/revel,pathirana/revel,cavaliercoder/revel,jmptrader/revel,cokeboL/revel,roblillack/revel,revel/revel,notzippy/revel,roblillack/mars,trigrass2/revel,Jxspy/revel,ggerman/revel,shima-park/revel,salixvideo/revel,huacnlee/revel,roblillack/revel,folpindo/revel,hustbill/revel,zog/revel,jenalgit/revel,lili2311/revel,notzippy/revel,shima-park/revel,PatidarWeb/revel,jmptrader/revel,veliamsli/revel,imjerrybao/revel,Jxspy/revel,salixvideo/revel,vahid-sohrabloo/revel,hustbill/revel,ggerman/revel,lgscofield/revel,cokeboL/revel,trigrass2/revel,klauspost/revel,zacklin923/revel,veliamsli/revel,runner-mei/revel,jmptrader/revel,Jxspy/revel,w4ngyi/revel,cw2018/revel,huacnlee/revel,vahid-sohrabloo/revel,nubleer/revel,birkirb/revel,hustbill/revel,cavaliercoder/revel,nubleer/revel,jenalgit/revel,shima-park/revel,huacnlee/revel,notzippy/revel,lili2311/revel,imjerrybao/revel,zog/revel,birkirb/revel,marklap/revel,w4ngyi/revel,metafex/revel,marklap/revel,kaneshin/revel-revel,pathirana/revel,zacklin923/revel,cw2018/revel,imjerrybao/revel,cokeboL/revel,trigrass2/revel,lgscofield/revel,roblillack/revel,zog/revel,roblillack/mars,birkirb/revel,lgscofield/revel,kaneshin/revel-revel,cavaliercoder/revel,runner-mei/revel,zacklin923/revel,veliamsli/revel