1 files changed, 20 insertions, 0 deletions
diff --git a/activerecord/test/cases/scoping/relation_scoping_test.rb b/activerecord/test/cases/scoping/relation_scoping_test.rb
index 8e512e118a..73835c85a8 100644
--- a/activerecord/test/cases/scoping/relation_scoping_test.rb
+++ b/activerecord/test/cases/scoping/relation_scoping_test.rb
@@ -15,6 +15,26 @@ class RelationScopingTest < ActiveRecord::TestCase
     developers(:david)
   end
 
+  def test_unscoped_breaks_caching
+    author = authors :mary
+    assert_nil author.first_post
+    post = FirstPost.unscoped do
+      author.reload.first_post
+    end
+    assert post
+  end
+
+  def test_scope_breaks_caching_on_collections
+    author = authors :david
+    ids = author.reload.special_posts_with_default_scope.map(&:id)
+    assert_equal [1,5,6], ids.sort
+    scoped_posts = SpecialPostWithDefaultScope.unscoped do
+      author = authors :david
+      author.reload.special_posts_with_default_scope.to_a
+    end
+    assert_equal author.posts.map(&:id).sort, scoped_posts.map(&:id).sort
+  end
+
   def test_reverse_order
     assert_equal Developer.order("id DESC").to_a.reverse, Developer.order("id DESC").reverse_order
   end