1 files changed, 7 insertions, 0 deletions
diff --git a/spec/arel/visitors/to_sql_spec.rb b/spec/arel/visitors/to_sql_spec.rb
index c8bfb845c1..b277810863 100644
--- a/spec/arel/visitors/to_sql_spec.rb
+++ b/spec/arel/visitors/to_sql_spec.rb
@@ -65,6 +65,13 @@ module Arel
             "users"."id" IN (1, 2, 3)
           }
         end
+
+        it "should turn empty right to NULL" do
+          node = @attr.in []
+          @visitor.accept(node).should be_like %{
+            "users"."id" IN (NULL)
+          }
+        end
       end
 
       describe 'Equality' do