1 files changed, 31 insertions, 0 deletions
diff --git a/activerecord/test/cases/migration/foreign_key_test.rb b/activerecord/test/cases/migration/foreign_key_test.rb
index 7f4790bf3e..72f2fa95f1 100644
--- a/activerecord/test/cases/migration/foreign_key_test.rb
+++ b/activerecord/test/cases/migration/foreign_key_test.rb
@@ -243,6 +243,37 @@ module ActiveRecord
         silence_stream($stdout) { migration.migrate(:down) }
       end
 
+      class CreateSchoolsAndClassesMigration < ActiveRecord::Migration
+        def change
+          create_table(:schools)
+
+          create_table(:classes) do |t|
+            t.column :school_id, :integer
+          end
+          add_foreign_key :classes, :schools
+        end
+      end
+
+      def test_add_foreign_key_with_prefix
+        ActiveRecord::Base.table_name_prefix = 'p_'
+        migration = CreateSchoolsAndClassesMigration.new
+        silence_stream($stdout) { migration.migrate(:up) }
+        assert_equal 1, @connection.foreign_keys("p_classes").size
+      ensure
+        silence_stream($stdout) { migration.migrate(:down) }
+        ActiveRecord::Base.table_name_prefix = nil
+      end
+
+      def test_add_foreign_key_with_suffix
+        ActiveRecord::Base.table_name_suffix = '_s'
+        migration = CreateSchoolsAndClassesMigration.new
+        silence_stream($stdout) { migration.migrate(:up) }
+        assert_equal 1, @connection.foreign_keys("classes_s").size
+      ensure
+        silence_stream($stdout) { migration.migrate(:down) }
+        ActiveRecord::Base.table_name_suffix = nil
+      end
+
     end
   end
 end