--- a
+++ b/tox.ini
@@ -0,0 +1,21 @@
+# Tox (https://tox.readthedocs.io/) is a tool for running tests
+# in multiple virtualenvs. This configuration file will run the
+# test suite on all supported python versions. To use it, "pip install tox"
+# and then run "tox" from this directory.
+#
+# See also https://tox.readthedocs.io/en/latest/config.html for more
+# configuration options.
+
+[tox]
+# Choose your Python versions. They have to be available
+# on the system the tests are run on.
+envlist = py35, py36, py37, py38
+
+[testenv]
+deps = 
+    coverage
+    pytest
+    ordered-set
+commands =
+  coverage run --source pathaia -m pytest tests --verbose
+  coverage xml