Testing Ruby gems against multiple versions of everything
Gem authors often need to stay compatible with different dependency sets. E.g. we must support multiple versions of Ruby, various releases of Rails, different types of databases.
In this talk I would show how to test a single codebase against multiple dependency sets, without breaking development flow. I would also show how to use CI services like TravisCI to simplify contributions for developers who are less experienced with complex testing setups.
Duration probably < 20 minutes. I could present this for the October meetup.
Is this something the group would be interested in?