How I Learned to Love Testing

love_testing

Better Testing in Ruby (or "How I Learned to Love Testing")
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Introduction:
  - Ricky
  - Software Engineering @ Airbnb (Previous: Twitter, Aniarc)

Beginning:
  - "I wrote the code, I already know it works!"

Why write test:
  - Refactor
  - Regression
  - Report

"But writing test takes so much time"

Problem:
  - Assertions are hard
    - Assertion = Intent
    - Understand how to assert
  - Hard to set up test
    - DRY also applies in test
    - Test is also code, treat it like code
  - Hard to write test
    - Code smell
  - Tests are slow
    - GC Tune
    - Associations
    - let
    - Parallelism
    - Preloader

Demo: Test Refactoring

Testing Advance:
  - Experimentation
    - Canary / Staging
    - Decider
  - Service Integration
    - Cross-service communication
    - Front-end / Back-end integration
    - iOS / Android / API integration