[CHEF-3197] raise NoMethodError for unknown attrsCHEF-3197

Previously ArgumentError was raised, and did not indicate that
incorrect method call could be the issue.

2 files changed, 2 insertions, 2 deletions

diff --git a/chef/lib/chef/node/attribute.rb b/chef/lib/chef/node/attribute.rb
index ccd87a1d77..c4556bfeae 100644
--- a/chef/lib/chef/node/attribute.rb
+++ b/chef/lib/chef/node/attribute.rb
@@ -425,7 +425,7 @@ class Chef
             self[symbol] = Mash.new
             self[symbol]
           else
-            raise ArgumentError, "Attribute #{symbol} is not defined!" unless auto_vivifiy_on_read
+            raise NoMethodError, "Undefined method or attribute `#{symbol}' on `node'"
           end
         elsif symbol.to_s =~ /=$/
           key_to_set = symbol.to_s[/^(.+)=$/, 1] || symbol
diff --git a/chef/spec/unit/node_spec.rb b/chef/spec/unit/node_spec.rb
index a7d44a2f62..77883bab62 100644
--- a/chef/spec/unit/node_spec.rb
+++ b/chef/spec/unit/node_spec.rb
@@ -249,7 +249,7 @@ describe Chef::Node do
     end
 
     it "should raise an ArgumentError if you ask for an attribute that doesn't exist via method_missing" do
-      lambda { @node.sunshine }.should raise_error(ArgumentError)
+      lambda { @node.sunshine }.should raise_error(NoMethodError)
     end
 
     it "should allow you to iterate over attributes with each_attribute" do