CFY-2209 added some utility methods to be used by tests
CFY-2209 added some utility methods to be used by tests

cloudify-cosmo/cloudify-system-tests,isaac-s/cloudify-system-tests,codilime/cloudify-system-tests,codilime/cloudify-system-tests,codilime/cloudify-system-tests,isaac-s/cloudify-system-tests,cloudify-cosmo/cloudify-system-tests,isaac-s/cloudify-system-tests