Make tests in installer_spec more expressive
Make tests in installer_spec more expressive

Change-Id: I81bd208602d1948d74e3f3206b75520b045655d9
Reviewed-on: http://gerrit.causes.com/48257
Tested-by: jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@brigade.com>
Reviewed-by: Shane da Silva <67fb7bfe39f841b16a1f86d3928acc568d12c716@brigade.com>

blech75/overcommit,oxocode/overcommit,oxocode/overcommit,gnagel/overcommit,TheSooth/overcommit,TheSooth/overcommit,gnagel/overcommit,blech75/overcommit