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如何解决对可测试控制器的依赖性？具有相关性的可测试控制器
工作原理：一个URI被路由到一个控制器，一个控制器可能依赖于执行某个任务。
<?php
require 'vendor/autoload.php';
/*
* Registry
* Singleton
* Tight coupling
* Testable?
*/
$request = new Example\Http\Request();
Example\Dependency\Registry::getInstance()->set('request', $request);
$controller = new Example\Controller\RegistryController();
$controller->indexAction();
/*
* Service Locator
*
* Testable? Hard!
*
*/
$request = new Example\Http\Request();
$serviceLocator = new Example\Dependency\ServiceLocator();
$serviceLocator->set('request', $request);
$controller = new Example\Controller\ServiceLocatorController($serviceLocator);
$controller->indexAction();
/*
* Poor Man
*
* Testable? Yes!
* Pain in the ass to create with many dependencies, and how do we know specifically what dependencies a controller needs
* during creation?
* A solution is the Factory, but you would still need to manually add every dependencies a specific controller needs
* etc.
*
*/
$request = new Example\Http\Request();
$controller = new Example\Controller\PoorManController($request);
$controller->indexAction();
这是我的设计模式的例子解释
注册地：
- 辛格尔顿
- 紧耦合
- 可测？没有
服务定位器
- 可测？硬/否（？）
穷人迪
- 可测试
- 很难与很多依赖
注册表来维持
<?php
namespace Example\Dependency;
class Registry
{
protected $items;
public static function getInstance()
{
static $instance = null;
if (null === $instance) {
$instance = new static();
}
return $instance;
}
public function set($name, $item)
{
$this->items[$name] = $item;
}
public function get($name)
{
return $this->items[$name];
}
}
服务定位器
<?php
namespace Example\Dependency;
class ServiceLocator
{
protected $items;
public function set($name, $item)
{
$this->items[$name] = $item;
}
public function get($name)
{
return $this->items[$name];
}
}
如何解决对可测试控制器的依赖关系？
*“很难维护很多依赖项”* .. emm ..什么依赖关系？ –
你的控制器返回什么？你在测试什么？以什么方式？ – mpm