Adjust smoke test to search in examples directory.

The latest puppet recommendation are for examples of working manifest to
be put in the examples directory.  This patch ensure that we first
search this one before moving on the tests directory, for backward
compatibility.

Change-Id: I2699eaa3a10589c9a0c680bb1de489994fe01b67

lib/puppet-openstack_spec_helper/shared_examples_acceptance.rb

@@ -8,9 +8,9 @@ shared_examples_for 'puppet_apply_success' do |manifest|
   end
 end
 
-# Test a normal puppet run with idempotency using files in the tests
-# directory (smoke testing)
-shared_examples_for 'puppet_apply_success_from_tests' do |test_file|
+# Test a normal puppet run with idempotency using files in the
+# examples/tests directory (smoke testing)
+shared_examples_for 'puppet_apply_success_from_example' do |test_file|
   it 'should apply the manifest without error' do
     apply_manifest(smoke_test_named(test_file), :catch_failures => true)
   end

lib/puppet-openstack_spec_helper/support/helpers/smoke_test.rb

@@ -1,19 +1,30 @@
 module PuppetOpenstackSpecHelpers
   module SmokeTest
     def smoke_test_named(file)
-      smoke_dir = File.join(project_root_directory, 'tests')
-      smoke_manifest_file = File.join(smoke_dir,
-                                      file.sub(/\.pp$/, '') + '.pp')
-
-      unless File.exists?(smoke_manifest_file)
-        raise ArgumentError,
-              "Cannot find smoke manifest file '#{smoke_manifest_file}'"
-      end
+      smoke_manifest_file = example_file(file)
       File.read(smoke_manifest_file)
     end
 
     def project_root_directory
       RSpec::Core::RubyProject.root
     end
+
+    private
+    def example_file(file)
+      smoke_manifest_file = ''
+      found = true
+      ['examples', 'tests'].each do |ex_dir|
+        smoke_dir = File.join(project_root_directory, ex_dir)
+        smoke_manifest_file = File.join(smoke_dir,
+                                        file.sub(/\.pp$/, '') + '.pp')
+        break if File.exists?(smoke_manifest_file)
+        found = false
+      end
+      unless found
+        raise ArgumentError,
+              "Cannot find smoke manifest file '#{file}' in 'tests' or 'examples' directory"
+      end
+      smoke_manifest_file
+    end
   end
 end