我一直在使用 Zend Framework 进行单元测试。我已经习惯了它提供的其他东西,但我很难理解 Mock Objects。
对于这个例子,我试图使用一个模拟对象来测试我的模型。
<?php
class Twitter_Model_Twitter
{
private $_twitter;
/**
* Make the options injectable.
* __contruct($auth, $key)
*/
public function __construct()
{
$config = new Zend_Config_Ini(APPLICATION_INI, APPLICATION_ENV);
$key = $config->encryption->salt;
$iv_size = mcrypt_get_iv_size(MCRYPT_XTEA, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$password = mcrypt_decrypt(MCRYPT_XTEA, $key, $password, MCRYPT_MODE_ECB, $iv);
$this->_twitter = new Zend_Service_Twitter($username, $password);
}
public function verifyCredentials()
{
return $this->_twitter->account->verifyCredentials();
}
public function friendsTimeline($params)
{
return $this->_twitter->status->friendsTimeline($params);
}
}
对于我的单元测试:
require_once ('../application/models/Twitter.php');
class Model_TwitterTest extends ControllerTestCase
{
/**
* @var Model_Twitter
*/
protected $_twitter;
public function testfriendsTimeline()
{
$mockPosts = array('foo', 'bar');
//my understanding below is:
//get a mock of Zend_Service_Twitter with the friendsTimeline method
$twitterMock = $this->getMock('Zend_Service_Twitter', array('friendsTimeline'));
/*
line above will spit out an error:
1) testfriendsTimeline(Model_TwitterTest)
Missing argument 1 for Mock_Zend_Service_Twitter_9fe2aeaa::__construct(), called in
/Applications/MAMP/bin/php5/lib/php/PHPUnit/Framework/TestCase.php on line 672 and
defined /htdocs/twitter/tests/application/models/TwitterTest.php:38
*/
$twitterMock->expects($this->once())
->method('friendsTimeline')
->will($this->returnValue($mockPosts));
$model = new Twitter_Model_Twitter();
$model->setOption('twitter', $twitterMock);
$posts = $model->friendsTimeline(array('count'=>20));
$this->assertEquals($posts, $mockPosts);
}
}
您将如何测试以下内容?1) verifyCredentials() 2) FriendsTimeline()
谢谢,温伯特