diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 0000000..b3f29fa
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,7 @@
+[paths]
+source =
+    daphne/
+
+[report]
+omit =
+    .tox/*
diff --git a/.travis.yml b/.travis.yml
index 6f34248..4913089 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,17 @@
 sudo: false
 language: python
 python:
-  - "2.7"
-  - "3.5"
+- "3.5"
+env:
+  global:
+  - PIP_RETRIES=10
+  - PIP_TIMEOUT=30
+  matrix:
+  - TOXENV=py27
+  - TOXENV=py35
 install:
-  - if [[ $TRAVIS_PYTHON_VERSION == 2.7 ]]; then pip install unittest2; fi
-  - pip install asgiref twisted autobahn
-script: if [[ $TRAVIS_PYTHON_VERSION == 2.7 ]]; then python -m unittest2; else python -m unittest; fi
+- travis_retry pip install tox codecov
+script:
+- tox
+after_success:
+- codecov
diff --git a/README.rst b/README.rst
index 79ee5c2..e0298b0 100644
--- a/README.rst
+++ b/README.rst
@@ -3,10 +3,13 @@ daphne
 
 .. image:: https://api.travis-ci.org/andrewgodwin/daphne.svg
     :target: https://travis-ci.org/andrewgodwin/daphne
-    
+
 .. image:: https://img.shields.io/pypi/v/daphne.svg
     :target: https://pypi.python.org/pypi/daphne
 
+.. image:: https://codecov.io/github/andrewgodwin/daphne/coverage.svg?branch=master
+    :target: https://codecov.io/github/andrewgodwin/daphne?branch=master
+
 Daphne is a HTTP, HTTP2 and WebSocket protocol server for
 `ASGI <http://channels.readthedocs.org/en/latest/asgi.html>`_, and developed
 to power Django Channels.
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..9ef6dcf
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,25 @@
+[tox]
+envlist = py{27,35}
+
+[base]
+commands =
+    coverage report -m
+
+[testenv]
+usedevelop = true
+commands =
+    coverage run -m unittest
+    {[base]commands}
+deps =
+    asgiref
+    twisted
+    autobahn
+    coverage
+
+[testenv:py27]
+commands =
+    coverage run -m unittest2
+    {[base]commands}
+deps =
+    unittest2
+    {[testenv]deps}