I have a rails 3.0 application with complicated logic and was finding that changes to fix a bug would introduce another bug elsewhere. I needed an automatic regression test tool so I could quickly know if this happened. I am using cucumber for this. I know that I am not doing BDD or TDD, but that is beside the point.
My initial set of scenarios was developed using capybara and seeding the database with test fixtures. Although it mostly worked, there were problems because it was not exercizing the javascript on my web page, so I switched to selenium. Now none of my scenarios worked. sqlite3 was complaining about the database being locked because it can only handle one request at a time. I tried switching to a mysql test database, but then the scenarios did not see the changes the application made to database. After much googling, I found that both of these problems were because selenium runs in a separate thread while capybara does not. The suggested solution for this was to change the database cleaner strategy from transaction to truncate. After this change, most of the scenarios ran, but for those using the scenario outline, only the first case would pass. The following cases all found an empty database. Truncate was deleting all the database records after the first case and not restoring it. After more googling I found I could set the database cleaner strategy to nil. Now all of my scenarios pass, but I have to be careful that no two scenarios use the same database records because database changes are not cleared between scenarios. I also have been able to go back to using sqlite3. Is there a better alternative? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/6LGGdyyH_0UJ. For more options, visit https://groups.google.com/groups/opt_out.
