Make including VCR in tests real easy

vcr_tests.rb

# using the VCR gem:
# https://github.com/myronmarston/vcr/
#
# this wraps each test in a unique VCR cassette and separately the setup method.
#
# require 'vcr_tests' in test_helper.rb
# then in a test file include the VcrTests module after the setup method

module VcrTests

  def self.included(base)
    base.extend(ClassMethods)

    base.class_eval do
      class << self
        alias_method_chain :test, :vcr
      end
    end

    base.alias_method_chain :setup, :vcr

  end

  module ClassMethods

    # force VCR to be used on all tests, call test_without_vcr to not use it
    def test_with_vcr(name, &block)

      test_without_vcr(name) do

        VCR.use_cassette(self.class.name + '/' + name.gsub(' ', '_')) do
          self.instance_eval(&block)
        end

      end

    end

  end

  def setup_with_vcr
    VCR.use_cassette(self.class.name + '/_setup') do
      setup_without_vcr
    end
  end

end