fix unit test
fix unit test

vongazman/libcloud,t-tran/libcloud,apache/libcloud,Scalr/libcloud,vongazman/libcloud,samuelchong/libcloud,t-tran/libcloud,mistio/libcloud,mgogoulos/libcloud,andrewsomething/libcloud,StackPointCloud/libcloud,Scalr/libcloud,techhat/libcloud,samuelchong/libcloud,illfelder/libcloud,samuelchong/libcloud,ByteInternet/libcloud,vongazman/libcloud,ZuluPro/libcloud,pquentin/libcloud,Scalr/libcloud,illfelder/libcloud,techhat/libcloud,mistio/libcloud,apache/libcloud,pquentin/libcloud,erjohnso/libcloud,erjohnso/libcloud,SecurityCompass/libcloud,watermelo/libcloud,andrewsomething/libcloud,Kami/libcloud,mgogoulos/libcloud,StackPointCloud/libcloud,Kami/libcloud,watermelo/libcloud,techhat/libcloud,watermelo/libcloud,Kami/libcloud,StackPointCloud/libcloud,ZuluPro/libcloud,mgogoulos/libcloud,ByteInternet/libcloud,apache/libcloud,erjohnso/libcloud,ByteInternet/libcloud,SecurityCompass/libcloud,andrewsomething/libcloud,t-tran/libcloud,SecurityCompass/libcloud,mistio/libcloud,pquentin/libcloud,illfelder/libcloud,ZuluPro/libcloud