Add Travis config file

.travis.yml

@@ -0,0 +1,12 @@
+language: python
+cache:
+  pip: true
+  directories:
+    - $HOME/.local/share/virtualenvs
+python:
+  - '3.6'
+install:
+  - pip install pipenv
+  - pipenv install
+script:
+  - pipenv run pytest