Using vcr with Minitest + Rails (test unit style)

Gemfile

group :test do
  gem "minitest"
  gem "vcr"
  gem "webmock", "~> 1.15.0"
end

test_helper.rb

# test/test_helper.rb

# Load everything from test/support
Dir[File.expand_path("../support/**/*.rb", __FILE__)].each { |rb| require(rb) }

vcr.rb

# test/support/vcr.rb

require "vcr"

VCR.configure do |config|
  config.allow_http_connections_when_no_cassette = false
  config.cassette_library_dir = File.expand_path("../../cassettes", __FILE__)
  config.hook_into :webmock
  config.ignore_request { ENV["DISABLE_VCR"] }
  config.ignore_localhost = true
  config.default_cassette_options = {
    :record => :new_episodes
  }
end

# Monkey patch the `test` DSL to enable VCR and configure a cassette named
# based on the test method. This means that a test written like this:
# 
# class OrderTest < ActiveSupport::TestCase
#   test "user can place order" do
#     ...
#   end
# end
# 
# will automatically use VCR to intercept and record/play back any external
# HTTP requests using `cassettes/order_test/_user_can_place_order.yml`.
# 
class ActiveSupport::TestCase
  def self.test(test_name, &block)
    return super if block.nil?

    cassette = [name, test_name].map do |str|
      str.underscore.gsub(/[^A-Z]+/i, "_")
    end.join("/")

    super(test_name) do
      VCR.use_cassette(cassette) do
        instance_eval(&block)
      end
    end
  end
end

Thanks Matt! I use the same approach now and it works perfectly well 👍