Test update, remove unnecessary dependencies

[Strnadj]

Hello,

we are using after_commit_queue in several projects, but now we need it outside the rails (for example Sinatra + ActiveRecord or just resque workers with separate gemfile without rails), but there was a problem rails is dependency. So we have to make a few changes:

• Remove Rails as dependency, activerecord is enough
• Appraisal to test across Rails + StateMachine / StateMachines
• Travis-CI - db (pg, sqlite, mysql) x rails (3.2, 4.0, 4.1, 4.2)
• StateMachine monkey-patch for tests with Rails 4.1 and above
• Rails-spec
• Remove dummy rails application (no longer necessary - appraisal)
• There is a problem StateMachine is no longer maintained and @seuros make a fork called "state_machines", from some reason the build falls, I am not sure why yet, but I think they just skip after_commit callbacks (don't have a time yet, solutions are welcome!)

[seuros]

gem "state_machines"

[Strnadj]

@seuros That's actually not a typoo, original gem has a dependency the old state_machine, I've just use appraisal to test against both of them (the old state_machine and the new one state_machines), as you can see there is two of gemsets

[seuros]

I think you need to use "state_machines-activerecord" instead of just "state_machines", the later don't have the integration.

Could you add it to the gemspec ?

[Strnadj]

Yes, Ive add that, but its lead to these two situations:

• I have require 'state_machines-activerecord' - like you in test_helper

        `require': cannot load such file -- state_machines-activerecord

• or I've remove that and method missing error occurs, but this error is predictable, becuse of missing dependency

        `method_missing': undefined method `state_machine'

[Strnadj]

That's actually quite funny :) On localhost test fails because of the errors above, but on Travis:

https://travis-ci.org/netbrick/after_commit_queue/jobs/57108047

it works, only problem is a AR observer..., but I think this will be a solution https://github.com/state-machines/state_machines-activemodel-observers