Added feature specs for have_enqueued_job matcher

[morgoth]

Follow up to #1464 and #1480

[morgoth]

I'm trying to figure out how to conditionally skip tests when AJ is not available, so I added cucumber step https://github.com/rspec/rspec-rails/pull/1486/files#diff-e6a0765839735d337aa3101a10bc43bbR6 but I don't know how to implement it, as https://github.com/rspec/rspec-rails/pull/1486/files#diff-922aab2260697e2bbe72d3df4147da81R7 is evaluated in context of #<Object+ArubaExt+Aruba::Api+RSpec::Matchers+Cucumber::RbSupport::RbWorld+JSON::Ext::Generator::GeneratorMethods::Object+Kernel:0x2ada022b4f38> so using https://github.com/rspec/rspec-rails/blob/master/lib/rspec/rails/feature_check.rb#L21-L23 doesn't work.
Can anyone give me a clue how to make it work?

[JonRowe]

If you require the relevant part of rspec-rails you'll be able to do this.

[morgoth]

@JonRowe Now tests are passing

[soulcutter]

Thanks for documenting this! I spoke briefly about this matcher in a talk I gave at the Cleveland Ruby Brigade meetup last Thursday, so it's great to get a cuke around this so more people can know about it :)

[morgoth]

Any ETA on next rspec-rails release? I would like to introduce have_enqueued_job matcher to my team and it's always more convenient with stable release ;-)

[soulcutter]

Releasing 3.4.0 this week has been under discussion - I can't promise a specific date, but soon!