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从testng.xml运行测试用例时,如何解决SessionID = null问题

[英]How to resolve the SessionID=null issue when running the test case from testng.xml

我的问题与此类似-SessionNotFoundException:会话ID为null。 调用quit()后使用WebDriver吗? (硒)

当我分别运行测试用例时,它运行良好,但是当我从testng.xml第2个测试用例开始运行它们时,由于会话ID为null,一切都会失败。 我一直在寻找解决方案,并发现问题出在驱动程序作用域上。 谁能告诉我解决此问题的最佳方法是什么?

这就是我的框架的样子-

测试用例

package testCase;

import java.util.concurrent.TimeUnit;
import org.openqa.selenium.NoSuchElementException;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import utility.Constant;
import utility.OpentapWrappers;
import utility.Reporter;

public class TC001 extends OpentapWrappers{

    @Test (description="Test")
    public void main() {
        WebDriverWait wait=new WebDriverWait(driver, 60);

        try {
            wait.until(ExpectedConditions.urlContains(Constant.Plumbing_URL));

            /* Validate navigation to Plumbing */
            ValidateUrl(Constant.Plumbing_URL);

        } catch (NoSuchElementException e) {
            e.printStackTrace();
            Reporter.reportStep("NoSuchElementException" , "FAIL");
        }
    }

    @BeforeClass
    public void beforeClass(){
        browserName="firefox";
        testCaseName = "TC001";
        testDescription = "Validate Header";
    }

}

ReusableActions

import java.util.List;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.support.ui.Select;
import com.relevantcodes.extentreports.ExtentReports;
import com.relevantcodes.extentreports.ExtentTest;
import utility.Reporter;

public class ReusableActions {

    public static WebDriver driver;
    public ExtentReports extent;
    public static ExtentTest test;

    /* Invoke Browser and enter the URL */

    public static void InvokeApp(String browser, String url) {
        try {
            if (browser.equalsIgnoreCase("chrome")) {
                System.setProperty("webdriver.chrome.driver", "D:\\chromedriver.exe");
                driver = new ChromeDriver();
            } else {
                System.setProperty("webdriver.gecko.driver", "D:\\geckodriver.exe");
                DesiredCapabilities capabilities = new DesiredCapabilities();
                capabilities.setCapability("acceptInsecureCerts",true);
                driver = new FirefoxDriver(capabilities);
            }

            //driver.manage().window().maximize();
            driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
            driver.get(url);
            Reporter.reportStep("The browser :" +browser+ " is launched with URL :" +url+ "successfully","PASS");

        } catch (Exception e) {
            e.printStackTrace();
            Reporter.reportStep("The browser :" +browser+ " could not be launched with URL :" +url+ "successfully","FAIL");
        }
    }

    /* Validate URL*/

    public static void ValidateUrl(String URL){
        try {
            if (driver.getCurrentUrl().contains(URL)) {
                Reporter.reportStep("Page is successfully loaded :"+URL, "PASS");
            } else {
                Reporter.reportStep("Page Title :"+driver.getCurrentUrl()+" did not match with :"+URL, "FAIL");
            }
        } catch (Exception e) {
            e.printStackTrace();
            Reporter.reportStep("The URL did not match", "FAIL");
        }
    }


   /* Quit Browser*/

   public void quitBrowser() {

     try {

        driver.quit();

      } catch (Exception e) {

         Reporter.reportStep("The browser could not be closed.", "FAIL");

      }

  }

}

记者班

public class Reporter extends OpentapWrappers{

    private static ExtentTest test;
    private static ExtentReports extent;

    public static void reportStep(String desc, String status) {
        long number = (long) Math.floor(Math.random() * 900000000L) + 10000000L;
        File src = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);

        try {
            FileUtils.copyFile(src, new File("D:\\Reports\\Screenshots\\Scr_"+number+".png"));
        } catch (WebDriverException e) {
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

        // Write if it is successful or failure or information
        if (status.toUpperCase().equals("PASS")) {
            test.log(LogStatus.PASS, desc + test.addScreenCapture(".\\Screenshots\\Scr_"+number+".png"));

        } else if (status.toUpperCase().equals("FAIL")) {
            test.log(LogStatus.FAIL, desc + test.addScreenCapture(".\\Screenshots\\Scr_"+number+".png"));
            throw new RuntimeException("FAILED");

        } else if (status.toUpperCase().equals("INFO")) {
            test.log(LogStatus.INFO, desc);
        }
    }

    public static void startResult() {
        extent = new ExtentReports("D:\\Reports\\SiteCoreUS.html", false);
        extent.loadConfig(new File("D:\\extentreports-java-2.41.2\\extent-config.xml"));
    }

    public static void startTestCase() {
        test = extent.startTest(testCaseName, testDescription);
    }

    public static void endResult() {
        extent.endTest(test);
        extent.flush();
    }

}

OpenTapWrapper类别

package utility;

public class OpentapWrappers extends ReusableActions {

    protected static String browserName;
    protected static String testCaseName;
    protected static String testDescription;

    @BeforeSuite
    public void beforeSuite() throws FileNotFoundException, IOException {
        Reporter.startResult();
    }

    @BeforeMethod
    public void beforeMethod() {
        Reporter.startTestCase();
        InvokeApp(browserName,Constant.SiteCoreUSURL);
    }

    @AfterSuite
    public void afterSuite() {
        Reporter.endResult();
    }

    @AfterMethod
    public void afterMethod() {
        quitBrowser();
    }

}

您的代码中有很多复杂性,其中最大的复杂性是您对ReusableActions#driver的静态引用。 因此,这里发生的是ReusableActions所有子类,即您的TC001最终共享了driver的相同静态数据成员。 这会为您造成竞争状况。

因此,当您并行运行两个或多个@Test方法时,它们最终会共享相同的静态WebDriver引用。 我猜这是导致问题的原因,因为您的@Test方法之一运行得非常快,并且会在驱动程序对象上调用quit()方法。 现在,当第二个测试方法到达quit()调用时,它将结束第二次调用quit()

请在整个代码中删除静态引用。

我还建议您减少代码中的继承层。 它增加了代码的复杂性,并使调试变得困难。 您可能希望在继承方面偏向于组合。

看一下我创建的这篇博客文章,您可以通过使用组合而不是继承来实现Webdriver测试的相同并行执行。

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