added test to double setting env var
added test to double setting env var

guilhermebr/tsuru,mderaldo/tsuru,cezarsa/tsuru,hcxiong/tsuru,firebitsbr/tsuru,gciotta/tsuru,gciotta/tsuru,ArxdSilva/tsuru,cgvarela/tsuru,mderaldo/tsuru,ArxdSilva/tsuru,gciotta/tsuru,ggarnier/tsuru,hcxiong/tsuru,ArxdSilva/tsuru,hcxiong/tsuru,tuxmonteiro/tsuru,firebitsbr/tsuru,cezarsa/tsuru,ggarnier/tsuru,guilhermebr/tsuru,tsuru/tsuru,kgrvamsi/tsuru,jblancett/tsuru,cgvarela/tsuru,4eek/tsuru,4eek/tsuru,guilhermebr/tsuru,Endika/tsuru,cezarsa/tsuru,tuxmonteiro/tsuru,ggarnier/tsuru,4eek/tsuru,ggarnier/tsuru,cezarsa/tsuru,Endika/tsuru,ArxdSilva/tsuru,RichardKnop/tsuru,tuxmonteiro/tsuru,tsuru/tsuru,Endika/tsuru,tsuru/tsuru,jblancett/tsuru,gwmoura/tsuru,kgrvamsi/tsuru,kgrvamsi/tsuru,cgvarela/tsuru,gwmoura/tsuru,RichardKnop/tsuru,tsuru/tsuru,guilhermebr/tsuru,gwmoura/tsuru,firebitsbr/tsuru,mderaldo/tsuru,RichardKnop/tsuru,jblancett/tsuru