/**
  * test remove named timestamps
  */
 public function test_remove_named_timestamps()
 {
     $bm = new Ruckusing_Migration_Base($this->adapter);
     $table_name = 'users';
     $created_name = 'created';
     $updated_name = 'updated';
     //create it
     $this->adapter->execute_ddl("CREATE TABLE `{$table_name}` ( name varchar(20), `{$created_name}` datetime not null, `{$updated_name}` datetime not null );");
     //verify they exists
     $col = $this->adapter->column_info($table_name, $created_name);
     $this->assertEquals($created_name, $col['field']);
     $col = $this->adapter->column_info($table_name, $updated_name);
     $this->assertEquals($updated_name, $col['field']);
     //drop them
     $bm->remove_timestamps($table_name, $created_name, $updated_name);
     //verify they does not exist
     $col = $this->adapter->column_info($table_name, $created_name);
     $this->assertEquals(null, $col);
     $col = $this->adapter->column_info($table_name, $updated_name);
     $this->assertEquals(null, $col);
     $this->remove_table($table_name);
 }