diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000..29e8391
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,2 @@
+[tool:pytest]
+addopts = -v -x --doctest-modules --ignore=setup.py --cov=p2pfs
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..214889e
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,7 @@
+[tox]
+envlist = py27, py34, py35, py36, py37, pypy
+
+[testenv]
+passenv = PYTHONPATH
+extras = test
+commands = pytest tests/