The problem I'm having getting Typhoeus and VCR to cooperate.

vcr_spec.rb

require "typhoeus"
require "vcr"

VCR.configure do |config|
  config.cassette_library_dir = "vcr_cassettes"
  config.hook_into              :typhoeus
end

describe VCR do
  it "should work with a queue" do
    VCR.use_cassette("test") do
      hydra   = Typhoeus::Hydra.new
      request = Typhoeus::Request.new("http://xkcd.com/")
      success = false

      request.on_success do |_|
        success = true
      end
      hydra.queue(request)
      hydra.run

      expect(success).to be_true
    end
  end
end

# $ rspec vcr_spec.rb
# .

# Finished in 1.19 seconds
# 1 example, 0 failures
# $ rspec vcr_spec.rb
# F

# Failures:

#   1) VCR should work with a queue
#      Failure/Error: expect(success).to be_true
#        expected: true value
#             got: false
#      # ./vcr_spec.rb:22:in `block (3 levels) in <top (required)>'
#      # ./vcr_spec.rb:11:in `block (2 levels) in <top (required)>'

# Finished in 0.05077 seconds
# 1 example, 1 failure

# Failed examples:

# rspec ./vcr_spec.rb:10 # VCR should work with a queue