The session is divided in two parts.

Part 1: Learning (20 Min)

In the first part you learn about the different testing infrastructures in the Wikimedia eco system exemplified using the math rendering feature. This includes the concepts of

• unit testing
• integration testing
• browser tests (advertise for session T190046: Write Selenium tests in JavaScript/Node.js workshop)
• beta features
• A/B testing
• outlook: TDD
• motivation (negative examples)

@WMDE-Fisch @Physikerwelt prepare slides

Part 2: Doing

In the second phase, you will apply your theoretical skills on a real world bugs (TODO: Link simple test coverage extension or browser testing bugs here)

@WMDE-leszek : collect some examples, maybe find A/B testing code

Newcomer friendly: yes
Session Context: skill-share
Needs: Tables, powerplugs, projector, internet connection
Organizers: @Physikerwelt, @WMDE-leszek, @WMDE-Fisch