public function Test_of_afterDestroy_and_beforeDestroy()
{
$TodoItems = new TodoItem(10);
$TodoItems->transactionStart();
$TodoItems->destroy();
$this->assertFalse($TodoItems->list->isInList());
$todo_list = $this->_getTodoList();
$this->assertEqual($todo_list[10], 'Task number 11');
$this->assertEqual($todo_list[14], 'Task number 15');
$TodoItems->destroy(array(15, 16));
$todo_list = $this->_getTodoList();
$this->assertEqual($todo_list[13], 'Task number 14');
$this->assertEqual($todo_list[14], 'Task number 17');
$this->assertEqual($todo_list[15], 'Task number 18');
$TodoItems->transactionFail();
$TodoItems->transactionComplete();
$todo_list = $this->_getTodoList();
$this->assertEqual($todo_list[10], 'Task number 10', 'Test failed because a database transaction was not performed correctly');
}