[r=thumper] instance container method tests
[r=thumper] instance container method tests

Be explicit in the container type equality.
Test the parsing of KVM.
Change the tests names to be consistent with the functions.

https://codereview.appspot.com/25460045/
anastasiamac/juju,thomnico/juju,cmars/juju,mattyw/juju,fwereade/juju,voidspace/juju,mjs/juju,Altoros/juju-vmware,mhilton/juju-juju,frankban/juju,Altoros/juju-cloudsigma,macgreagoir/juju,bac/juju,waigani/juju,mikemccracken/juju,makyo/juju,perrito666/juju,sinzui/juju,voidspace/juju,bac/juju,Altoros/juju-vmware,perrito666/juju,tasdomas/juju,frankban/juju-tmp,mjs/juju,howbazaar/juju,frankban/juju,ericsnowcurrently/juju,alesstimec/juju,Altoros/juju-vmware,mjs/juju,AdamIsrael/juju,frankban/juju,anastasiamac/juju,marcoceppi/juju,bz2/juju,cloud-green/juju,davecheney/juju,cloud-green/juju,howbazaar/juju,rogpeppe/juju,jrwren/juju,thomnico/juju,ericsnowcurrently/juju,bac/juju,frobware/juju,mikemccracken/juju,waigani/juju,tasdomas/juju,marcoceppi/juju,cherylj/juju,kat-co/juju,axw/juju,alesstimec/juju,cmars/juju,Altoros/juju-cloudsigma,tsakas/juju,anastasiamac/juju,dimitern/juju,wwitzel3/juju,gabriel-samfira/juju,reedobrien/juju,anastasiamac/juju,mattyw/juju,mhilton/juju,wwitzel3/juju,fwereade/juju,mattyw/juju,AdamIsrael/juju,alesstimec/juju,Altoros/juju-cloudsigma,marcoceppi/juju,voidspace/juju,gabriel-samfira/juju,fwereade/juju,Altoros/juju-vmware,sinzui/juju,dimitern/juju,frankban/juju-tmp,davecheney/juju,tsakas/juju,bz2/juju,marcmolla/juju,macgreagoir/juju,bogdanteleaga/juju,makyo/juju,mattyw/juju,sinzui/juju,cloud-green/juju,bogdanteleaga/juju,kat-co/juju,ericsnowcurrently/juju,mhilton/juju,gabriel-samfira/juju,dooferlad/juju,perrito666/juju,tasdomas/juju,ericsnowcurrently/juju,tych0/juju,makyo/juju,kat-co/juju,marcmolla/juju,mhilton/juju-juju,thomnico/juju,marcmolla/juju,dooferlad/juju,mjs/juju,dooferlad/juju,bz2/juju,perrito666/juju,rogpeppe/juju,davecheney/juju,jrwren/juju,ericsnowcurrently/juju,mjs/juju,marcmolla/juju,frankban/juju,dimitern/juju,tsakas/juju,axw/juju,bogdanteleaga/juju,Altoros/juju-cloudsigma,dimitern/juju,reedobrien/juju,cmars/juju,dooferlad/juju,tych0/juju,alesstimec/juju,davecheney/juju,frankban/juju-tmp,howbazaar/juju,cherylj/juju,rogpeppe/juju,makyo/juju,alesstimec/juju,mjs/juju,waigani/juju,jrwren/juju,wwitzel3/juju,cherylj/juju,AdamIsrael/juju,kat-co/juju,anastasiamac/juju,sinzui/juju,bogdanteleaga/juju,bac/juju,howbazaar/juju,macgreagoir/juju,howbazaar/juju,bac/juju,frobware/juju,mikemccracken/juju,frankban/juju,dimitern/juju,axw/juju,cmars/juju,gabriel-samfira/juju,marcmolla/juju,macgreagoir/juju,axw/juju,tych0/juju,perrito666/juju,mjs/juju,AdamIsrael/juju,macgreagoir/juju,reedobrien/juju,tasdomas/juju,frobware/juju,wwitzel3/juju,mikemccracken/juju,thomnico/juju,reedobrien/juju,mhilton/juju-juju,fwereade/juju,reedobrien/store,bz2/juju,tsakas/juju,axw/juju,marcoceppi/juju,cloud-green/juju,mikemccracken/juju,bz2/juju,dooferlad/juju,reedobrien/juju,voidspace/juju,frankban/juju-tmp,mhilton/juju,mhilton/juju-juju,tych0/juju,cherylj/juju,waigani/juju,mhilton/juju,kat-co/juju,gabriel-samfira/juju