Add testkitchen and serverspec specs.

.gitignore

+.kitchen/
+.kitchen.local.yml

.kitchen.yml

+---
+driver:
+  name: vagrant
+
+provisioner:
+  name: chef_solo
+
+platforms:
+  - name: ubuntu-12.04
+  - name: ubuntu-14.04
+  - name: ubuntu-16.04
+  - name: centos-7.2
+  - name: centos-6.4
+
+suites:
+  - name: default
+    run_list:
+      - recipe[cookbook-gitlab-runner::default]
+    attributes:
+      cookbook-gitlab-runner:
+        global_config:
+          concurrent: 10
+        runners:
+          test1:
+            global:
+              name: test1
+              limit: 20
+            docker:
+              image: ruby:2.1
+              privileged: true

Berksfile

 source "https://supermarket.chef.io"
-cookbook 'apt'
-cookbook 'yum'
+metadata

Berksfile.lock

 DEPENDENCIES
-  apt
-  yum
+  cookbook-gitlab-runner
+    path: .
+    metadata: true
 GRAPH
   apt (3.0.0)
-  yum (3.10.0)
+  cookbook-gitlab-runner (0.1.0)
+    apt (>= 0.0.0)
+    yum (>= 0.0.0)
+  yum (3.11.0)

Gemfile

 source 'https://rubygems.org'
 gem 'berkshelf'
+gem "test-kitchen"
+gem "kitchen-vagrant"

Gemfile.lock

@@ -2,6 +2,7 @@ GEM
   remote: https://rubygems.org/
   specs:
     addressable (2.4.0)
+    artifactory (2.3.2)
     berkshelf (4.3.3)
       addressable (~> 2.3, >= 2.3.4)
       berkshelf-api-client (~> 2.0, >= 2.0.2)
@@ -50,6 +51,8 @@ GEM
     hitimes (1.2.4)
     httpclient (2.7.2)
     json (1.8.3)
+    kitchen-vagrant (0.20.0)
+      test-kitchen (~> 1.4)
     minitar (0.5.4)
     mixlib-authentication (1.4.0)
       mixlib-log
@@ -57,10 +60,18 @@ GEM
       rspec-expectations (~> 3.2)
       rspec-mocks (~> 3.2)
     mixlib-config (2.2.1)
+    mixlib-install (1.0.12)
+      artifactory
+      mixlib-shellout
+      mixlib-versioning
     mixlib-log (1.6.0)
     mixlib-shellout (2.2.6)
+    mixlib-versioning (1.1.0)
     molinillo (0.4.5)
     multipart-post (2.0.0)
+    net-scp (1.2.1)
+      net-ssh (>= 2.6.5)
+    net-ssh (3.1.1)
     nio4r (1.2.1)
     octokit (4.3.0)
       sawyer (~> 0.7.0, >= 0.5.3)
@@ -92,6 +103,7 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.4.0)
     rspec-support (3.4.1)
+    safe_yaml (1.0.4)
     sawyer (0.7.0)
       addressable (>= 2.3.5, < 2.5)
       faraday (~> 0.8, < 0.10)
@@ -99,6 +111,13 @@ GEM
     solve (2.0.3)
       molinillo (~> 0.4.2)
       semverse (~> 1.1)
+    test-kitchen (1.9.0)
+      mixlib-install (~> 1.0, >= 1.0.4)
+      mixlib-shellout (>= 1.2, < 3.0)
+      net-scp (~> 1.1)
+      net-ssh (>= 2.9, < 4.0)
+      safe_yaml (~> 1.0)
+      thor (~> 0.18)
     thor (0.19.1)
     timers (4.0.4)
       hitimes
@@ -111,6 +130,8 @@ PLATFORMS
 DEPENDENCIES
   berkshelf
+  kitchen-vagrant
+  test-kitchen
 BUNDLED WITH
    1.11.2

chefignore

+.kitchen

recipes/default.rb

@@ -5,6 +5,6 @@
 # Copyright 2016, GitLab Inc.
 #
-include_recipe 'docker_install'
-include_recipe 'runner_install'
-include_recipe 'runner_configure'
+include_recipe '::docker_install'
+include_recipe '::runner_install'
+include_recipe '::runner_configure'

test/integration/default/serverspec/docker-engine_spec.rb

+require 'serverspec'
+
+# Required by serverspec
+set :backend, :exec
+
+describe "Docker engine" do
+  describe package('docker-engine') do
+    it { should be_installed }
+  end
+end

test/integration/default/serverspec/docker-machine_spec.rb

+require 'serverspec'
+
+# Required by serverspec
+set :backend, :exec
+
+describe "Docker machine" do
+  describe command('docker-machine --version') do
+    its(:stdout) { should match /docker-machine version 0.7.0/ }
+  end
+end

test/integration/default/serverspec/gitlab-runner_spec.rb

+require 'serverspec'
+
+# Required by serverspec
+set :backend, :exec
+
+describe "GitLab runner" do
+
+  describe package('gitlab-ci-multi-runner') do
+    it { should be_installed }
+  end
+
+  describe file('/etc/gitlab-runner/config.toml') do
+    it { should be_file }
+    it { should be_owned_by 'root' }
+    it { should be_mode 600 }
+  end
+
+  describe file('/etc/gitlab-runner/config.toml') do
+    its(:content) { should match /concurrent = 10/ }
+    its(:content) { should match /[[runners]]/ }
+    its(:content) { should match /[runners.docker]/ }
+    its(:content) { should match /image = "ruby:2.1"/ }
+    its(:content) { should match /privileged = true/ }
+  end
+end