Example showing use of puffing-billy gem with webmock, selenium, minitest and minitest-metadata in a Rails project

billy.rb

# test/support/billy.rb

require 'billy'

Billy.configure do |c|
  # configuration options
end

Billy.register_drivers

module Billy
  module MinitestHelper
    def proxy
      Billy.proxy
    end
  end
end

example_test.rb

# test/integration/exmaple_test.rb

require 'test_helper'

class ExampleTest < ActionDispatch::IntegrationTest
  it "tests with puffing billy", billy_selenium: true do
    ...
  end
end

Gemfile

group :test
  gem 'puffing-billy'
  gem 'minitest-metadata', require: false
  gem 'capybara_minitest_spec'
  gem 'selenium-webdriver'
  gem 'webmock'
end

test_helper.rb

# test/test_helper.rb

require 'support/billy'

class ActionDispatch::IntegrationTest
  include Capybara::DSL
  include MiniTest::Metadata
  include Billy::MinitestHelper
  
  before do
    if metadata[:billy_selenium] == true
      WebMock.allow_net_connect!
      Capybara.javascript_driver = :selenium_billy
      Capybara.current_driver = Capybara.javascript_driver
    end
  end
  
  after do
    if metadata[:billy_selenium] == true
      WebMock.disable_net_connect!(allow_localhost: true)
    end
  end
end