1 files changed, 23 insertions, 0 deletions
diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb
index 2224097f04..9feb7b010f 100644
--- a/activerecord/test/cases/base_test.rb
+++ b/activerecord/test/cases/base_test.rb
@@ -53,6 +53,16 @@ class Weird < ActiveRecord::Base; end
 
 class Boolean < ActiveRecord::Base; end
 
+class LintTest < ActiveRecord::TestCase
+  include ActiveModel::Lint::Tests
+
+  class LintModel < ActiveRecord::Base; end
+
+  def setup
+    @model = LintModel.new
+  end
+end
+
 class BasicsTest < ActiveRecord::TestCase
   fixtures :topics, :companies, :developers, :projects, :computers, :accounts, :minimalistics, 'warehouse-things', :authors, :categorizations, :categories, :posts
 
@@ -478,6 +488,19 @@ class BasicsTest < ActiveRecord::TestCase
   def test_hashing
     assert_equal [ Topic.find(1) ], [ Topic.find(2).topic ] & [ Topic.find(1) ]
   end
+  
+  def test_comparison
+    topic_1 = Topic.create!
+    topic_2 = Topic.create!
+    
+    assert_equal [topic_2, topic_1].sort, [topic_1, topic_2]
+  end
+
+  def test_comparison_with_different_objects
+    topic = Topic.create
+    category = Category.create(:name => "comparison")
+    assert_nil topic <=> category
+  end
 
   def test_readonly_attributes
     assert_equal Set.new([ 'title' , 'comments_count' ]), ReadonlyTitlePost.readonly_attributes