https://twitter.com/andrewa2/status/394226185434976256

faraday_stub_spec.rb

require 'rubygems'
require 'rspec'
require 'faraday'

describe Faraday do
  it "stubs HTTP responses" do
    conn = Faraday.new do |f|
      f.adapter :test do |stub|
        stub.get '/example' do
          [200, {}, 'hi world']
        end
      end
    end
    response = conn.get '/example'
    expect(response.status).to eq(200)
    expect(response.body).to eq('hi world')
  end
end

# rspec faraday_stub_spec.rb
# .
#
# Finished in 0.00217 seconds
# 1 example, 0 failures