Add coverage

.travis.yml

@@ -0,0 +1,16 @@
+language: python
+matrix:
+  include:
+    - python: 3.4
+      env: TOXENV=py34
+    - python: 3.5
+      env: TOXENV=py35   
+    - python: 3.6
+      env: TOXENV=py36
+
+install:
+  - pip install -U tox twine wheel codecov
+
+script: tox
+after_success:
+  - codecov

tox.ini

@@ -0,0 +1,24 @@
+[tox]
+envlist = py34, py35, py36
+[testenv]
+passenv = 
+    CI TRAVIS TRAVIS_*
+deps =
+    pytest
+    flake8
+    coverage
+    pytest-cov
+    codecov
+setenv =
+    PYTHONWARNINGS=all
+commands =
+    py.test --cov=chat --cov-report= {posargs:chat tests}
+
+[testenv:py34]
+basepython = python3.4
+
+[testenv:py35]
+basepython = python3.5
+
+[testenv:py36]
+basepython = python3.6