Test against the latest version of Puppet 3.x and with future parser

.travis.yml

@@ -14,6 +14,8 @@ env:
   matrix:
   - PUPPET_GEM_VERSION="~> 3.7.1"
   - PUPPET_GEM_VERSION="~> 3.7"
+  - PUPPET_GEM_VERSION="~> 3"
+  - PUPPET_GEM_VERSION="~> 3" PARSER="future"
   global:
   - PUBLISHER_LOGIN=puppetlabs
   -  secure: "FInoEwh3G4Auqp+OOdIc20lDLqrV6FHzWsM8ercHWjhDRD23VI49B1qqehWjaI8lKM3D5mTvdup23IVQBJo8M0rR/yfju1NhMYFTQ5bcJIrbQ3fn4n/zSaE8gLTOtHwzjSlqTJAYjxOAnp1VdMZngqpU/RYfSk68zJD34NqfovA="

spec/spec_helper.rb

@@ -4,6 +4,9 @@ RSpec.configure do |c|
   c.include PuppetlabsSpec::Files
 
   c.before :each do
+    # optionally use the future parser based on an environment variable
+    Puppet[:parser] = 'future' if ENV['PARSER'] == 'future'
+
     # Ensure that we don't accidentally cache facts and environment
     # between test cases.
     Facter::Util::Loader.any_instance.stubs(:load_all)