tox: Re-add cover target
This was removed in an earlier patch but should not have been. Re-add it
now.
@@ -31,6 +31,16 @@ commands =
basepython = python3
commands = {posargs}
+[testenv:cover]
+basepython = python3
+setenv =
+ PYTHON=coverage run --source pbr --parallel-mode
+commands =
+ stestr run {posargs}
+ coverage combine
+ coverage html -d cover
+ coverage xml -o cover/coverage.xml
+
[flake8]
# H405 multi line docstring summary not separated with an empty line
# H904 "Wrap lines in parentheses and not a backslash for line continuation
