1 files changed, 13 insertions, 2 deletions
diff --git a/activerecord/test/cases/scoping/named_scoping_test.rb b/activerecord/test/cases/scoping/named_scoping_test.rb
index 59ec2dd6a4..41f3449828 100644
--- a/activerecord/test/cases/scoping/named_scoping_test.rb
+++ b/activerecord/test/cases/scoping/named_scoping_test.rb
@@ -5,6 +5,7 @@ require 'models/comment'
 require 'models/reply'
 require 'models/author'
 require 'models/developer'
+require 'models/computer'
 
 class NamedScopingTest < ActiveRecord::TestCase
   fixtures :posts, :authors, :topics, :comments, :author_addresses
@@ -132,6 +133,13 @@ class NamedScopingTest < ActiveRecord::TestCase
     assert_equal Post.ranked_by_comments.limit_by(5), Post.top(5)
   end
 
+  def test_scopes_body_is_a_callable
+    e = assert_raises ArgumentError do
+      Class.new(Post).class_eval { scope :containing_the_letter_z, where("body LIKE '%z%'") }
+    end
+    assert_equal "The scope body needs to be callable.", e.message
+  end
+
   def test_active_records_have_scope_named__all__
     assert !Topic.all.empty?
 
@@ -291,9 +299,12 @@ class NamedScopingTest < ActiveRecord::TestCase
       :relation,      # private class method on AR::Base
       :new,           # redefined class method on AR::Base
       :all,           # a default scope
-      :public,
+      :public,        # some imporant methods on Module and Class
       :protected,
-      :private
+      :private,
+      :name,
+      :parent,
+      :superclass
     ]
 
     non_conflicts = [