[CI] Add Vagrant box for running tests against OpenLDAP locally

test/support/vm/openldap/.gitignore

@@ -0,0 +1 @@
+/.vagrant

test/support/vm/openldap/README.md

@@ -0,0 +1,32 @@
+# Local OpenLDAP Integration Testing
+
+Set up a [Vagrant](http://www.vagrantup.com/) VM to run tests against OpenLDAP locally.
+
+To run tests against OpenLDAP (instead of ApacheDS) locally:
+
+``` bash
+# start VM (from the correct directory)
+$ cd test/support/vm/openldap/
+$ vagrant up
+
+# get the IP address of the VM
+$ ip=$(vagrant ssh -- "ifconfig eth1 | grep -o -E '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | head -n1")
+
+# change back to root project directory
+$ cd ../../../..
+
+# run all tests against OpenLDAP
+$ time TESTENV=openldap OPENLDAP_HOST=$ip bundle exec rake
+
+# run a specific test file against OpenLDAP
+$ time TESTENV=openldap OPENLDAP_HOST=$ip bundle exec ruby test/membership_validators/recursive_test.rb
+
+# run OpenLDAP tests by default
+$ export TESTENV=openldap
+$ export TESTENV=$ip
+
+# now run tests without having to set ENV variables
+$ time bundle exec rake
+```
+
+You may need to `gem install vagrant` first in order to provision the VM.

test/support/vm/openldap/Vagrantfile

@@ -0,0 +1,33 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+# Vagrantfile API/syntax version. Don't touch unless you know what you're doing!
+VAGRANTFILE_API_VERSION = "2"
+
+Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
+  config.vm.hostname = "openldap.github.org"
+
+  config.vm.box = "hashicorp/precise64"
+
+  config.vm.network "private_network", type: :dhcp
+
+  config.ssh.forward_agent = true
+
+  config.vm.provision "shell", inline: "apt-get update; exec env /vagrant_data/script/install-openldap"
+
+  config.vm.synced_folder "../../../..", "/vagrant_data"
+
+  config.vm.provider "vmware_fusion" do |vb, override|
+    override.vm.box = "hashicorp/precise64"
+    vb.memory = 4596
+    vb.vmx["displayname"] = "integration tests vm"
+    vb.vmx["numvcpus"] = "2"
+  end
+
+  config.vm.provider "virtualbox" do |vb, override|
+    vb.memory = 4096
+    vb.customize ["modifyvm", :id, "--nicpromisc2", "allow-all"]
+    vb.customize ["modifyvm", :id, "--chipset", "ich9"]
+    vb.customize ["modifyvm", :id, "--vram", "16"]
+  end
+end

test/test_helper.rb

@@ -71,7 +71,7 @@ def options
           instrumentation_service: @service
       when "openldap"
         {
-          host: 'localhost',
+          host: ENV.fetch("OPENLDAP_HOST", "localhost"),
           port: 389,
           admin_user:     'uid=admin,dc=github,dc=com',
           admin_password: 'passworD1',