Add test case for boolean.
Add test case for boolean.

Signed-off-by: Angus Salkeld <86b65304d27d8de73dd7d624c33df7e088f8d94b@redhat.com>

jasondunsmore/heat,steveb/heat,openstack/heat,varunarya10/heat,noironetworks/heat,maestro-hybrid-cloud/heat,steveb/heat,rh-s/heat,NeCTAR-RC/heat,citrix-openstack-build/heat,redhat-openstack/heat,rh-s/heat,gonzolino/heat,dims/heat,rickerc/heat_audit,openstack/heat-cfntools,miguelgrinberg/heat,JioCloud/heat,sdake/heat-jeos,steveb/heat-cfntools,pshchelo/heat,rdo-management/heat,ntt-sic/heat,dims/heat,rdo-management/heat,srznew/heat,pshchelo/heat,ntt-sic/heat,cryptickp/heat,Triv90/Heat,citrix-openstack-build/heat,noironetworks/heat,takeshineshiro/heat,Triv90/Heat,jasondunsmore/heat,bbandaru/heat-cfntools,maestro-hybrid-cloud/heat,rickerc/heat_audit,dragorosson/heat,cwolferh/heat-scratch,gonzolino/heat,pratikmallya/heat,dragorosson/heat,steveb/heat-cfntools,openstack/heat,cryptickp/heat,Triv90/Heat,redhat-openstack/heat,JioCloud/heat,NeCTAR-RC/heat,miguelgrinberg/heat,varunarya10/heat,pratikmallya/heat,cwolferh/heat-scratch,takeshineshiro/heat,srznew/heat