enqueue_sidekiq_job RSpec block matcher

# Gemfile
group :test do
  gem 'rspec-enqueue_sidekiq_job'
end

expect { AwesomeWorker.perform_async }
  .to enqueue_sidekiq_job(AwesomeWorker)

expect { AwesomeWorker.perform_async(42, 'David')
  .to enqueue_sidekiq_job(AwesomeWorker).with(42, 'David')

time = 5.minutes.from_now
expect { AwesomeWorker.perform_at(time) }
  .to enqueue_sidekiq_job(AwesomeWorker).at(time)

interval = 5.minutes
expect { AwesomeWorker.perform_in(interval) }
  .to enqueue_sidekiq_job(AwesomeWorker).in(5.minutes)

expect {
  2.times { AwesomeWorker.perform_async }
}.to enqueue_sidekiq_job(AwesomeWorker).twice

expect {
  3.times { AwesomeWorker.perform_async }
}.to enqueue_sidekiq_job(AwesomeWorker).exactly(3).times