Allow limit values to accept an ARel SQL literal.

1 files changed, 8 insertions, 2 deletions

diff --git a/activerecord/test/cases/base_test.rb b/activerecord/test/cases/base_test.rb
index 2cbff6a5e1..5b162f4f6f 100644
--- a/activerecord/test/cases/base_test.rb
+++ b/activerecord/test/cases/base_test.rb
@@ -59,7 +59,7 @@ class BasicsTest < ActiveRecord::TestCase
     assert_nil Edge.primary_key
   end
 
-  unless current_adapter?(:PostgreSQLAdapter) || current_adapter?(:OracleAdapter)
+  unless current_adapter?(:PostgreSQLAdapter,:OracleAdapter,:SQLServerAdapter)
     def test_limit_with_comma
       assert_nothing_raised do
         Topic.limit("1,2").all
@@ -94,7 +94,13 @@ class BasicsTest < ActiveRecord::TestCase
       Topic.limit("1, 7 procedure help()").all
     end
   end
-
+  
+  unless current_adapter?(:MysqlAdapter)
+    def test_limit_should_allow_sql_literal
+      assert_equal 1, Topic.limit(Arel.sql('2-1')).all.length
+    end
+  end
+  
   def test_select_symbol
     topic_ids = Topic.select(:id).map(&:id).sort
     assert_equal Topic.find(:all).map(&:id).sort, topic_ids