使用 Stub 和 Mock 的 APItest 的 PHPUNIT 示例

你将为其创建单元测试用例的类。 class Authorization {

/* Observer so that mock object can work. */    
 public function attach(Curl $observer)
{
    $this->observers = $observer;
}

/* Method for which we will create test */
public  function postAuthorization($url, $method) {
    
    return $this->observers->callAPI($url, $method);
}

}

现在我们不希望我们的测试代码有任何外部交互，因此我们需要为 callAPI 函数创建一个模拟对象，因为这个函数实际上是通过 curl 调用外部 URL。 class AuthorizationTest extends PHPUnit_Framework_TestCase {

protected $Authorization;

/**
 * This method call every time before any method call.
 */
protected function setUp() {
    $this->Authorization = new Authorization();
}

/**
 * Test Login with invalid user credential
 */
function testFailedLogin() {

    /*creating mock object of Curl class which is having callAPI function*/
    $observer = $this->getMockBuilder('Curl')
                     ->setMethods(array('callAPI'))
                     ->getMock();

    /* setting the result to call API. Thus by default whenver call api is called via this function it will return invalid user message*/
    $observer->method('callAPI')
            ->will($this->returnValue('"Invalid user credentials"'));

    /* attach the observer/mock object so that our return value is used */
    $this->Authorization->attach($observer);

    /* finally making an assertion*/
    $this->assertEquals('"Invalid user credentials"',           $this->Authorization->postAuthorization('/authorizations', 'POST'));
}

}

下面是 curl 类的代码（只是一个示例） class Curl{ function callAPI($url, $method){

    //sending curl req
}

}