Investigating WebMock and Net::HTTP.start

README.md

Smart Answers uses gds-api-adapters, which uses rest-client.

The rest-client Gem uses Net::HTTP and calls it using net = Net::HTTP.new and then net.start. We believe this might be causing problems when used with WebMock.

I've created the webmock_test.rb file to see if I can work out what's going on.

Gemfile

source 'https://rubygems.org'

gem 'webmock', '1.20.4', require: false
gem 'test-unit', require: false

Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    addressable (2.3.8)
    crack (0.4.2)
      safe_yaml (~> 1.0.0)
    power_assert (0.2.4)
    safe_yaml (1.0.4)
    test-unit (3.1.2)
      power_assert
    webmock (1.20.4)
      addressable (>= 2.3.6)
      crack (>= 0.3.2)

PLATFORMS
  ruby

DEPENDENCIES
  test-unit
  webmock (= 1.20.4)

BUNDLED WITH
   1.10.4

webmock_test.rb

require 'bundler/setup'
require 'test-unit'
require 'webmock'

WebMock.disable_net_connect!(:net_http_connect_on_start => true)

class HttpWrapper
  def self.instance_start
    request = Net::HTTP::Get.new('/instance_start')
    
    net = Net::HTTP.new('www.example.com', 80)
    net.start do |http|
      http.request(request)
    end
  end
  
  def self.class_start
    request = Net::HTTP::Get.new('/class_start')
    
    Net::HTTP.start('www.example.com', 80) do |http|
      http.request(request)
    end
  end
end

class WebMockTest < Test::Unit::TestCase
  include WebMock::API
  
  def test_instance_start
    stub_request(:get, "http://www.example.com/instance_start").
        with(:headers => {'Accept'=>'*/*', 'Accept-Encoding'=>'gzip;q=1.0,deflate;q=0.6,identity;q=0.3', 'User-Agent'=>'Ruby'}).
        to_return(:status => 404, :body => "", :headers => {})
        
    response = HttpWrapper.instance_start
    assert_equal '404', response.code
  end
  
  def test_class_start
    stub_request(:get, "http://www.example.com/class_start").
        with(:headers => {'Accept'=>'*/*', 'Accept-Encoding'=>'gzip;q=1.0,deflate;q=0.6,identity;q=0.3', 'User-Agent'=>'Ruby'}).
        to_return(:status => 404, :body => "", :headers => {})
        
    response = HttpWrapper.class_start
    assert_equal '404', response.code
  end
end