Move test requirement coverage into tox.ini

Like commented in the test-requirements.ini file the test requirement
coverage can be moved into the tox.ini file when tox>=1.4 is required.
The minimum version at the moment is 1.6.

Change-Id: Ic71f63fb0fab0470e4732099bb8ab5c13dd98538

1 files changed, 3 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index ca6cd00..2e1a10e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,10 +15,13 @@ commands = python setup.py testr --slowest --testr-args='{posargs}'
 commands = flake8
 
 [testenv:cover]
+deps = {[testenv]deps}
+    coverage
 setenv = VIRTUAL_ENV={envdir}
 commands =
   python setup.py testr --coverage
 
+
 [testenv:venv]
 commands = {posargs}