如何在模型测试用例中创建模拟

Question

也许我做错了.

我想测试一个模型(抗体)的beforeSave方法.此方法的一部分调用关联模型(Species)上的方法.我想嘲笑物种模型,但不知道如何.

是可能还是我做的事情违背了MVC模式,从而尝试做一些我不应该做的事情？

class Antibody extends AppModel {
    public function beforeSave() {

        // some processing ...

        // retreive species_id based on the input 
        $this->data['Antibody']['species_id'] 
            = isset($this->data['Species']['name']) 
            ? $this->Species->getIdByName($this->data['Species']['name']) 
            : null;

        return true;
    }
}

Answer 1

假设您的Species模型由于关系而由cake创建,您可以简单地执行以下操作:

public function setUp()
{
    parent::setUp();

    $this->Antibody = ClassRegistry::init('Antibody');
    $this->Antibody->Species = $this->getMock('Species');

    // now you can set your expectations here
    $this->Antibody->Species->expects($this->any())
        ->method('getIdByName')
        ->will($this->returnValue(/*your value here*/));
}

public function testBeforeFilter()
{
    // or here
    $this->Antibody->Species->expects($this->once())
        ->method('getIdByName')
        ->will($this->returnValue(/*your value here*/));
}