Allows metadata to override the type of Rails spec

[alindeman]

[Fixes #801]

[soulcutter]

What do you think about something like this:

  def c.match_example_group_by_path(path)
    lambda { |example_group, metadata|
      metadata[:type].nil? && escaped_path(path) =~ example_group[:file_path]
    }
  end

  c.include RSpec::Rails::ControllerExampleGroup,
    :type          => :controller,
    :example_group => c.match_example_group_by_path(%w[spec controllers])

[soulcutter]

Really good job documenting the magic directories w/cucumber 🍰

[JonRowe]

Do we know why the build is failing on this? I started tackling this from the opposite end but this is a better approach. I suspect @alindeman will be too busy to look at this this week though...

[JonRowe]

Needs restarting once the have issue is taken care of...

[alindeman]

@JonRowe, can you give some context around 817f47d? I reverted it because it isn't valid syntax in 1.8, and the build is green, so I'm worried I'm missing something.

[JonRowe]

No idea, it's been a while but maybe protecting against not being given metadata in some scenarios?

[alindeman]

🆒 I think rspec-core's arity checking will make sure this holds up OK, but if you know of a specific circumstance it breaks down, let me know :)