将数据提供者传递给 PHPUnit 中的 setUp() [英] Passing data provider to setUp() in PHPUnit

问题描述

我目前正在尝试将数据从我的数据提供者传递到 PHPUnit 中的 setUp() 方法.

I'm currently trying to pass data from my data provider to the setUp()-method in PHPUnit.

背景:我使用 PHPUnit 在不同浏览器中运行前端测试.浏览器应该在数据提供者内部定义，并且需要通过 setUp() 方法知道.

Background: I am using PHPUnit for running frontend-tests in different browsers. The browser should be defined inside the data provider and needs to be known by the setUp()-method.

我了解，数据提供程序最初是在调用 setUp() 方法(如 setUpBeforeClass())之前执行的.因此 setUp()-data 不能传递给数据提供者.但它应该反过来工作，不是吗?

I understand, that a data provider initially is executed before the setUp()-method (as setUpBeforeClass()) is called. Therefore setUp()-data can not be passed to a data provider. But it should work the other way round, shouldn't it?

PHPUnit 是否使用集成"的数据提供者的数据生成自己的临时测试类?

Does PHPUnit generate its own temporarily testclasses with data from the data provider "integrated"?

当然:解决方法可能是再次读取 setUp() 方法中的 XML 文件.但这是最后的选择，我会考虑......

Of course: a workaround could be, to read the XML-file in the setUp()-method again. But that's the last option, I'd consider...

提供了一个小片段:

dataProvider() 的一部分:

part of dataProvider():

public function dataProvider()
{
    $this->xmlCnf = $data['config'];
    var_dump($this->xmlCnf); // array with config is exposed
    // [...]
}

还有 setUp() 方法:

And the setUp()-method:

 protected function setUp()
{
    var_dump($this->xmlCnf); // NULL
    //[...]
}

推荐答案

如果这对任何人有用:

以下代码应该可以工作:

The following code should work:

public function dataProvider()
{
    return [ [ /* dataset 1 */] , ... ]
}

protected setUp() {
    parent::setUp();
    $arguments = $this->getProvidedData();
    // $arguments should match the provided arguments for this test case
}

/** 
 * @dataProvider dataProvider
 */
public function testCase(...$arguments) {

}

getProvidedData 方法似乎从 PHPUnit 5.6 开始就可用了(在最初提出这个问题之前或之后不久)

The getProvidedData method seems to have been available since PHPUnit 5.6 (which was either shortly before or after this question was originally asked)

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