Lightning Talk: Testing & CI

Jesse Vogt, jessevogt.com

Demo Project

github.com/jessevogt/mke-python-demo-get-my-ip

• get my public ip address by checking against a number of public services
• services.py
  • holds endpoint url
  • can make request through a provided ClientSession
  • can extract ip address from service response
  • services.txt - list of APIs to query. Format:

   <endpoint> <optional type (text|json), default=text> <args>
  

• getmyip.py
  • main entry point
  • requests my ip from each defined service
  • return ip address if they all give back same, otherwise except

Needs tests!

pytest

test_getmyip.py

• test text service
• test json service
• test different ip addresses returned

doctest

services.py

• parse_service

Continuous Integration

• Docker
• TravisCI

sudo: required
services:
    - docker
before_install:
    - docker build -t jessevogt/get-my-ip:$TRAVIS_COMMIT .
script:
    - docker run --rm jessevogt/get-my-ip:$TRAVIS_COMMIT pytest

References for TravisCI

• TravisCI: Using Docker in Builds
• Example from Heroku Logplx (docker-compose)