Add beaker tests

Add basic tests to ensure the redis class can be applied and that the
server will run.

Change-Id: I7cae75b31e0ed3a167fd7cb7c36bd4a5476c415d

spec/acceptance/basic_spec.rb

@@ -0,0 +1,27 @@
+require 'puppet-openstack_infra_spec_helper/spec_helper_acceptance'
+
+describe 'redis', if: os[:family] == 'ubuntu' do
+
+  def pp_path
+    base_path = File.dirname(__FILE__)
+    File.join(base_path, 'fixtures')
+  end
+
+  def puppet_manifest
+    manifest_path = File.join(pp_path, 'default.pp')
+    File.read(manifest_path)
+  end
+
+  it 'should work with no errors' do
+    apply_manifest(puppet_manifest, catch_failures: true)
+  end
+
+  it 'should be idempotent' do
+    apply_manifest(puppet_manifest, catch_changes: true)
+  end
+
+  describe service('redis-server') do
+    it { should be_running }
+  end
+
+end

spec/acceptance/fixtures/default.pp

@@ -0,0 +1,3 @@
+class { 'redis':
+  version => '3.0.6',
+}