diff --git a/.gitignore b/.gitignore
index 437c9f0bd..e1dca3a57 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,5 @@ build/
 dist/
 venv/
 .tox/
+.coverage
 m3
diff --git a/setup.cfg b/setup.cfg
index a848a847e..2b9124c06 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -3,3 +3,8 @@ zip_ok = false
 
 [aliases]
 dev = develop easy_install letsencrypt[testing]
+
+[nosetests]
+nocapture=1
+cover-package=letsencrypt
+cover-erase=1
diff --git a/setup.py b/setup.py
index 4352b0c25..93e22b4d9 100755
--- a/setup.py
+++ b/setup.py
@@ -15,6 +15,7 @@ install_requires = [
 testing_extras = [
     'coverage',
     'nose',
+    'nosexcover',
     'pylint',
     'tox',
 ]
@@ -33,6 +34,7 @@ setup(
     ],
     install_requires=install_requires,
     tests_require=install_requires,
+    test_suite='letsencrypt',
     extras_require={
         'testing': testing_extras,
     },
diff --git a/tox.ini b/tox.ini
index 9b6ca773a..75941366e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,14 +4,19 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py26, py27, lint
+envlist = py26,py27,cover,lint
 
 [testenv]
-commands = nosetests
-deps =
-    nose
+commands =
+    python setup.py dev
+    python setup.py test -q # -q does not suppress errors
+
+[testenv:cover]
+commands =
+    python setup.py dev
+    python setup.py nosetests --with-coverage --cover-min-percentage=100
 
 [testenv:lint]
-commands = pylint letsencrypt
-deps =
-    pylint
+commands =
+    python setup.py dev
+    pylint letsencrypt