2 files changed, 5 insertions, 0 deletions

diff --git a/test-requirements.txt b/test-requirements.txt
index fead9f9..25cb7dd 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,3 +1,4 @@
+coverage
 discover
 testrepository
 hacking>=0.9.2,<0.10
diff --git a/tox.ini b/tox.ini
index 929de45..9990c45 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,3 +26,7 @@ ignore = H501
 
 [testenv:docs]
 commands = python setup.py build_sphinx
+
+[testenv:cover]
+commands =
+   python setup.py testr --slowest --coverage --testr-args="{posargs}"