Toss an error if a resource without a resource_name is created

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/chef/resource_builder.rb b/lib/chef/resource_builder.rb
index bb0962d128..9e9f7047a4 100644
--- a/lib/chef/resource_builder.rb
+++ b/lib/chef/resource_builder.rb
@@ -18,6 +18,10 @@
 
 # NOTE: this was extracted from the Recipe DSL mixin, relevant specs are in spec/unit/recipe_spec.rb
 
+require 'chef/exceptions'
+require 'chef/resource'
+require 'chef/log'
+
 class Chef
   class ResourceBuilder
     attr_reader :type
@@ -46,6 +50,9 @@ class Chef
       raise ArgumentError, "You must supply a name when declaring a #{type} resource" if name.nil?
 
       @resource = resource_class.new(name, run_context)
+      if resource.resource_name.nil?
+        raise Chef::Exceptions::InvalidResourceSpecification, "#{resource}.resource_name is `nil`!  Did you forget to put `provides :blah` or `resource_name :blah` in your resource class?"
+      end
       resource.source_line = created_at
       resource.declared_type = type