Testing cache with Time Traveling

This is a short talk I gave at GURU-SC (Ruby User Group) about Rails Caching and how to test your caching rules when time is involved.

Transcript

1. Testing Cache with time travel Lucas Neves Martins @nevemartins @resdigitais
2. Rails Caching Rails ActiveSupport Request Dalli MemCached https://github.com/mperham/dalli
3. Performance? 15.000ms Without Cache With Cache 00.050ms MemCached 00.005ms
4. Setup production.rb
5. Usage dashboard.rb
6. Testing Cache should be created; Cache should be used; Cache should expire; Cache should be created again; Time Travel?
7. Delorean! https://github.com/bebanjo/delorean
8. Preparing dashboard_spec.rb
9. Test #01 Test if we are hitting memcached dashboard_spec.rb
10. Test #02 Test that we are NOT hitting memcached dashboard_spec.rb
11. Cleaning Up dashboard_spec.rb Back to the Future!
12. Other Caching Strategies
13. Fragment Caching Russian Dolls Page Cache Action Cache Fragment Cache Fragment Cache Web Server Rack Rails
14. Fragment Caching
15. Alternatives Delorean => Timecop Memcached => Redis http://37signals.com/svn/posts/3113-how-key-based-cache- expiration-works Caching:
16. Q & A http://resultadosdigitais.com.br/trabalhe-conosco Yay!