尝试使用Selenium运行behat时，不断出现致命错误 - Keep getting a fatal error when trying to run behat with Selenium

Keep getting a fatal error when trying to run behat with Selenium

本文关键字：致命错误 behat Selenium 运行 | 更新日期: 2024-06-08

我已经想了3个小时了，似乎不明白为什么这不起作用。我的硒服务器启动良好。

当我使用硒运行behat时，我的终端上不断出现以下错误

 Fatal error: Call to a member function open() on null (Behat'Testwork'Call'Exception'FatalThrowableError)

我不知道这个错误信息是什么意思。如果有人能帮我弄清楚这一点，我将不胜感激。

下面是我的功能上下文代码，问题发生在

use Behat'Behat'Tester'Exception'PendingException;
use Behat'Behat'Context'Context;
use Behat'Behat'Context'SnippetAcceptingContext;
use Behat'Gherkin'Node'PyStringNode;
use Behat'Gherkin'Node'TableNode;
use Behat'MinkExtension'Context'MinkContext;
use Behat'Mink'Driver'Selenium2Driver;
/**
 * Defines application features from the specific context.
 */
class FeatureContext extends MinkContext implements Context, SnippetAcceptingContext
{
    public  $session;
    public function __construct()
    {

        $driver = new 'Behat'Mink'Driver'Selenium2Driver('firefox');
        $this->session = new 'Behat'Mink'Session($driver);
    }

}

执行以下操作：

class FeatureContext extends MinkContext
{
    public function __construct()
    {
        // Don't do anything with session or driver here
    }
    /**
     * @Then /^I need selenium driver for this step$/
     */
    public function iNeedSeleniumDriverForThisStep()
    {
        $driver = $this->getSession()->getDriver();
        if (!$driver instanceof Selenium2Driver) {
            throw new UnsupportedDriverActionException('Selenium2Driver not installed.');
            return;
        }
        // ......
        // ......
        // Do whatever you want
    }
}

示例behat.yml

default:
    context:
        class: FeatureContext
    extensions:
        Behat'Symfony2Extension'Extension:
            mink_driver: true
            kernel:
                env: test
                debug: true
        Behat'MinkExtension'Extension:
            base_url: 'http://symfony.local/app_test.php/'
            files_path: %behat.paths.base%/build/dummy/
            javascript_session: selenium2
            browser_name: firefox
            goutte: ~
            selenium2: ~
    paths:
        features: %behat.paths.base%/src
        bootstrap: %behat.paths.features%/Context

同时在此网站中搜索Selenium2Driver和selenium关键字：http://www.inanzzz.com/index.php/posts/behat