Fix cover job

The job is currently broken, it runs with testr while
we switched to stestr. Use the usual setup for coverage as done by
other projects using stestr in cover.

Previously, we run with concurrency=1 - continue to run in serial mode.

Change-Id: I6e389db5aed8db25b49906b2479af081237fc909

1 files changed, 6 insertions, 4 deletions

diff --git a/tox.ini b/tox.ini
index d0a06def..ea2b4855 100644
--- a/tox.ini
+++ b/tox.ini
@@ -48,13 +48,15 @@ commands = oslo_debug_helper {posargs}
 
 [testenv:cover]
 basepython = python3
+setenv =
+  {[testenv]setenv}
+  PYTHON=coverage run --source trove
 commands =
-     {[testenv]commands}
      coverage erase
-     python setup.py testr --coverage --testr-args="--concurrency=1"
+     stestr run --serial {posargs}
      coverage run -a run_tests.py
-     coverage html
-     coverage xml
+     coverage html -d cover
+     coverage xml -o cover/coverage.xml
      coverage report
 
 [testenv:venv]