The Test Case Description for the TOSCA packaged VNF should be added to the ReadTheDocs  ONAP official release documentation at Test Case Documents at section 2.5  :https://docs.onap.org/en/latest/submodules/vnfrqts/testcases.git/docs/OnboardInstantiateTests.html#test-case-description-vnf-onboarding-and-instantiation-using-tosca

( FYI the section 2.4 provides the HEAT instantiation material which may be a useful example of teh type of content expected.)