
Add unittests for the following modules: * glanceclient.shell * glanceclient.v1.shell * glanceclient.v1.legacy_shell * glanceclient.v2.shell Also add mock library to the tools/test-requires Implements: blueprint glanceclient-shells-unittests Change-Id: I5ec527c5efff3726932d234d7c67e08149643f89