fix(travis): Run pytest from pipenv

CuriousLearner · CuriousLearner · commit 14caaf83c7cf · 2018-02-20T00:32:18.000+05:30
diff --git a/.travis.yml b/.travis.yml
@@ -17,11 +17,11 @@ install:
   - pip install pipenv
 
 before_script:
-- pipenv install
+- pipenv install --dev
 
 script:
 - flake8
-- pytest --cov -v --tb=native
+- pipenv run pytest --cov -v --tb=native
 
 notifications:
   email:
