Add chef-utils gem with various recipe DSL helpers

This is the implementation of [RFC-087](https://github.com/chef-boneyard/chef-rfc/blob/master/rfc087-distro-sugar-helpers.md)
although some of the specifics have been iterated on and changed.

The documentation will be in the [README.md](https://github.com/chef/chef/tree/master/chef-utils/README.md) once this is merged.

While this PR mostly moves chef-sugar utilities into core-chef via this chef-utils gem, the scope of the chef-utils gem
should be considered larger than just that. As an example this PR moves the Mash class into this gem for reuse in ohai
as well.

Signed-off-by: Lamont Granquist <lamont@scriptkiddie.org>

1 files changed, 31 insertions, 1 deletions

diff --git a/spec/unit/dsl/platform_introspection_spec.rb b/spec/unit/dsl/platform_introspection_spec.rb
index 7af233a769..227585a889 100644
--- a/spec/unit/dsl/platform_introspection_spec.rb
+++ b/spec/unit/dsl/platform_introspection_spec.rb
@@ -1,6 +1,6 @@
 #
 # Author:: Seth Falcon (<seth@chef.io>)
-# Copyright:: Copyright 2010-2016, Chef Software Inc.
+# Copyright:: Copyright 2010-2018, Chef Software Inc.
 # License:: Apache License, Version 2.0
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -127,3 +127,33 @@ describe Chef::DSL::PlatformIntrospection::PlatformFamilyDependentValue do
   end
 
 end
+
+describe "ChefHelper functions mixed into classes" do
+  METHODS = %i{windows? fedora_derived? bsd_based? rhel? aix? gentoo?}.freeze
+
+  METHODS.each do |method|
+    it "mixes #{method} into Chef::Resource instances" do
+      expect(Chef::Resource.instance_methods.include?(method)).to be true
+    end
+
+    it "mixes #{method} into Chef::Resource classes (provides lines, etc)" do
+      expect(Chef::Resource.respond_to?(method)).to be true
+    end
+
+    it "mixes #{method} into Chef::Provider instances (actions)" do
+      expect(Chef::Provider.instance_methods.include?(method)).to be true
+    end
+
+    it "mixes #{method} into Chef::Provider classes (provides lines, etc)" do
+      expect(Chef::Provider.respond_to?(method)).to be true
+    end
+
+    it "mixes #{method} into Chef::Recipe instances (recipe files)" do
+      expect(Chef::Recipe.instance_methods.include?(method)).to be true
+    end
+
+    it "mixes #{method} into Chef::Node instances (attribute files)" do
+      expect(Chef::Recipe.instance_methods.include?(method)).to be true
+    end
+  end
+end