Fix coverage report generation

Coverage is a little bit confused by oslo.messaging as the pypi package
name. So we have to be explicit here or we get no data collection.

Adding a .coveragerc helps give the report more context as we don't
care about coverage in the tests or oslo-incubator.

Change-Id: I3d24187890efd7aecad7fcb7a2974b87e89ef6ff

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 5cbe260..c01a8d0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,7 +15,7 @@ commands = flake8
 [testenv:cover]
 setenv = VIRTUAL_ENV={envdir}
 commands =
-  python setup.py testr --coverage
+  python setup.py test --coverage --coverage-package-name=oslo_messaging --testr-args='{posargs}'
 
 [testenv:venv]
 commands = {posargs}