Use strict_variables when puppet version >= 3.5

spec/spec_helper.rb

@@ -1,2 +1,29 @@
 require 'rubygems'
 require 'puppetlabs_spec_helper/module_spec_helper'
+
+RSpec.configure do |c|
+  c.include PuppetlabsSpec::Files
+
+  c.before :each do
+    # Ensure that we don't accidentally cache facts and environment
+    # between test cases.
+    Facter::Util::Loader.any_instance.stubs(:load_all)
+    Facter.clear
+    Facter.clear_messages
+
+    # Store any environment variables away to be restored later
+    @old_env = {}
+    ENV.each_key {|k| @old_env[k] = ENV[k]}
+
+    if Gem::Version.new(`puppet --version`) >= Gem::Version.new('3.5')
+      Puppet.settings[:strict_variables]=true
+    end
+    if ENV['PARSER']
+      Puppet.settings[:parser]=ENV['PARSER']
+    end
+  end
+
+  c.after :each do
+    PuppetlabsSpec::Files.cleanup
+  end
+end