我正在尝试测试一个函数,当我知道错误时我会被抛出。该函数如下所示:
function testSetAdsData_dataIsNull(){
$dataArr = null;
$fixture = new AdGroup();
try{
$fixture->setAdsData($dataArr);
} catch (Exception $e){
$this->assertEquals($e->getCode(), 2);
}
$this->assertEmpty($fixture->ads);
$this->assertEmpty($fixture->adIds);
}
现在我正在尝试使用phpunit异常断言方法来替换try catch部分,但我无法弄清楚如何做到这一点。 我做了很多阅读,包括这篇文章PHPUnit assert that an exception was thrown?,但我真的不明白它是如何实施的。
我试过这样的事情:/**
* @expectedException dataIsNull
*/
function testSetAdsData_dataIsNull(){
$dataArr = null;
$fixture = new AdGroup();
$this->setExpectedException('dataIsNull');
$fixture->setAdsData($dataArr);
$this->assertEmpty($fixture->ads);
$this->assertEmpty($fixture->adIds);
}
but obviously it didn't work and i got this error:
1) adGroupTest::testSetAdsData_dataIsNull
ReflectionException: Class dataIsNull does not exist
我做错了什么以及如果抛出异常pz怎么断言?
答案 0 :(得分:1)
我通常会在这种情况下使用@expectedException
注释。见all exception-related annotations here:
/**
* @expectedException \Exception
* @expectedExceptionCode 2
*/
function testSetAdsData_dataIsNull()
{
$dataArr = null;
$fixture = new AdGroup();
$fixture->setAdsData($dataArr);
}
检查$fixture->ads
是否真的为空并没有在这里真正添加,你可以在实际触发异常的调用之前添加这些断言:
$this->assertNull($fixture->ads);
$fixture->setAdsData($dataArr);//throws exception
你是单位测试。此测试有一个明确的目的:它确保在给定情况下抛出异常。如果是,那就是测试结束的地方。
但是,如果你想保留这些assertEmpty
电话,你可以这样做:
try {
$fixture->setAdsData($dataArr);
$e = null;
} cathc (Exception $e) {}
$this->assertEmpty($fixture->ads);
$this->assertEmpty($fixture->adIds);
if (!$e instanceof \Exception) {
//if the exception is not thát important:
$this->markTestIncomplete('No Exception thrown');
//do other stuff here... possibly
$this->fail('The exception was not thrown');
}
throw $e;//throw exception a bit later
另一种方法是手动调用$this->setExpectedException
as explained here。由于我们似乎不知道/关心异常消息的样子,我将使用setExpectedExceptionRegExp
方法:
$fixture = new AdGroup();
$this->setExpectedExceptionRegExp(
//exception class, message regex, exception code
'Exception', '/.*/'. 2
);
$fixture->setAdsData(null);//passing null seems to be what you're doing anyway