Facebook 新开发的PHP Mock工具:FBMock
为了让测试运行得更快更可靠,写测试更方便,人们通常使用Mock,而不是直接使用真正的外部依赖
最近,Facebook写了一个新的PHP Mock工具,用它写的Mock看上去非常干净整洁。
当使用PHP其它的Mock框架时,写的代码需要更多的语句,而且令测试过于依赖具体的实现细节。
比如,当我们用PHPUnit做Mock,只是简单地返回一些值时,代码可能象下面这样
[php]
$user = $this->getMock('User') <p> ->expects($this->any()) </p> <p> ->method('getID') </p> <p> ->will($this->returnValue(1234); </p> <p></p>
而使用FBMock时,代码如下:
[php]
$user = mock('User')->mockReturn('getID', 1234);
其实,FBMock并不是真正意义上的Mock框架,因为它没有上面代码那样,使用期望值检查。所以,只能算是一个有spy功能的桩。其实,Mock框架中的这种期望值检查最好少用,因为它有点儿过于限定化了。上面用FBMock的例子中,其实并不在意getID()被调用了多少次。
当然,有的时候检查哪个method被调用过也是很重要的,这时候可以简单地依赖于PHPUnit中的assertion。
[php]
$logger = mock('Logger');
// Run code that uses $logger
// Make sure 'data' was logged
$this->assertCalledOnce($logger, 'log', array('data'));
目前,FBMock支持 Zend PHP 5.4+ 和 HipHop VM。

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