faraday_stubs_spec.rb

  def stubs(f)
    f.post '/v1/oauth2/token?grant_type=client_credentials' do |env|
      expect(apicalls.shift).to eq env.url.path
      respond_to_auth_call env
    end
    f.post '/v1/transferOut' do |env|
      expect(apicalls.shift).to eq env.url.path
      validate_transfer_out_call env
      respond_to_transfer_out_call env
    end
  end

  before do
    Faraday.default_adapter = [:test,
                               Faraday::Adapter::Test::Stubs.new { |f| stubs f }]
  end