PHPUnit 的 returnValueMap 没有产生预期的结果
我正在尝试使用 PHPUnit 的 returnValueMap() 将读取的结果存根.它没有产生预期的结果,但等效的 returnCallback() 可以.如果您想亲自检查,我已经提供了我的测试用例.
I'm trying to use PHPUnit's returnValueMap() to stub out the results of a read. It isn't yielding the expected results, but an equivalent returnCallback() does. I've made my test case available if you'd like to inspect it yourself.
returnValueMap()
$enterprise = $this->getMock('Enterprise', array('field'));
$enterprise->expects($this->any())
->method('field')
->will($this->returnValueMap(array(
array('subscription_id', null),
array('name', 'Monday Farms')
)));
$enterprise->subscribe('basic');
结果:
Subscription ID: NULL
Name: NULL
returnCallback()
$enterprise = $this->getMock('Enterprise', array('field'));
$enterprise->expects($this->any())
->method('field')
->will($this->returnCallback(function ($arg) {
$map = array(
'subscription_id' => null,
'name' => 'Monday Farms'
);
return $map[$arg];
}));
$enterprise->subscribe('basic');
结果:
Subscription ID: NULL
Name: string(12) "Monday Farms"
企业::订阅
public function subscribe() {
echo 'Subscription ID: ';
var_dump($this->field('subscription_id'));
echo 'Name: ';
var_dump($this->field('name'));
}
为什么 returnValueMap() 没有像我期望的那样工作?我到底错过了什么?
Why doesn't returnValueMap() work as I expect it to? What exactly am I missing?
推荐答案
我遇到了同样的问题,最后发现 returnValueMap() 必须映射你函数的所有参数,包括可选参数,然后是所需的返回值.
I had the same problem and eventually found out that returnValueMap() has to map all parameters of your function, including optional ones, then the desired return value.
来自 Zend 框架的示例函数:
Example function from Zend Framework:
public function getParam($key, $default = null)
{
$key = (string) $key;
if (isset($this->_params[$key])) {
return $this->_params[$key];
}
return $default;
}
必须像这样映射:
$request->expects($this->any())
->method('getParam')
->will($this->returnValueMap(array(array($param, null, $value))));
中间没有null,就不行了.
Without the null in the middle, it won't work.
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