Travis setup for pytest, jest and pytest-cov

.travis.yml

@@ -10,16 +10,15 @@ python:
   - "3.6"
   # - "3.6-dev"
   # - "3.7-dev"
-install:
+before_install:
   - sudo -H pip install -U pipenv
   - curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
   - echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
   - sudo apt-get update && sudo apt-get install yarn 
+install:
   - curl -sL git.io/install-candis | sudo python
-  - pip3 install pytest-cov
-
+  - pip3 install pytest-cov # without reinstalling, its not working, latest version is 2.5.1  
 script:
-  #- export PIPENV_IGNORE_VIRTUALENVS=1
+  # - export PIPENV_IGNORE_VIRTUALENVS=1 # To be used when pipenv is tested successfully.
   - make test
-  - pytest --cov=candis.app.server.api candis/app/server/api/tests