在PHPUnit数据提供程序中设置和使用参数

2023年9月8日 145次阅读

我正在尝试为使用全局参数(来自YML文件)的服务编写测试.

我正在setUp()方法中检索这些参数,但是当我尝试在@dataProvider中使用它们时,它会抛出一个错误.

class InterpreterServiceTest extends KernelTestCase
{
    private $container;
    private $service;
    private $citiesMap;

    public function setUp()
    {
        self::bootKernel();
        $this->container = self::$kernel->getContainer();
        $this->service = $this->container->get('geolocation.interpreter');
        $this->citiesMap = $this->container->getParameter("citiesmap");
        self::tearDown();
    }

    /**
     * @dataProvider locationsProvider
     */
    public function testCompanyCityFromCity($location, $expected)
    {
        $city = $this->service->getCompanyCityFromCity($location);
        $this->assertEquals($expected, $city);
    }

    public function locationsProvider()
    {
        $return = array();
        foreach ($this->citiesMap as $area) {
            $return[] = [
                $area['external_service_area'],
                $area['company_area']
            ];
        }
        return $return;
    }
}

Invalid argument supplied for foreach()

如果我手动编写locationsProvider()的返回它是有效的

return [
    ["Barcelona", "Barcelona"],
    ["Madrid", "Madrid"],
    ["Cartagena", "Murcia"]
];

我也检查了setUp()中的foreach,它返回了正确的预期数组.

似乎@dataProvider在setUp()方法之前执行.

有没有不同的方法来做到这一点？

最佳答案 害怕你必须在dataProvider方法中获取所有数据(包括服务obj)

TL& DR这应该这样做：

class InterpreterServiceTest extends KernelTestCase
{
    /**
     * @dataProvider locationsProvider
     */
    public function testCompanyCityFromCity($service, $location, $expected)
    {
        $city = $service->getCompanyCityFromCity($location);

        $this->assertEquals($expected, $city);
    }

    public function locationsProvider()
    {
        self::bootKernel();

        $container = self::$kernel->getContainer();
        $service = $this->container->get('geolocation.interpreter');
        $citiesMap = $this->container->getParameter("citiesmap");
        // self::tearDown(); - depends on what is in the tearDown

        $return = array();
        foreach ($citiesMap as $area) {
            $return[] = [
                $service,
                $area['external_service_area'],
                $area['company_area']
            ];
        }

        return $return;
    }
}

为什么：

setUp和setUpBeforeClass方法都在PHPUnit_Framework_TestSuite类的run方法中运行.
但是,dataProvider中的数据先前作为createTest函数的一部分计算.

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