如何使用testng并行运行我的硒测试方法

Question

我想用testng并行运行我的自动化测试（Selenium webdriver）。这是我正在运行的节点：

java -Dwebdriver.gecko.driver=chromedriver.exe -jar selenium-server-standalone-3.4.0.jar -role node -hub http://localhost:4444/grid/register -browser browserName=chrome,maxInstances=2 -maxSession 2 

这是我的测试类：

public class TestParallel { 

Login login; 

//@BeforeMethod(alwaysRun = true) 
public SeleniumDriverCore testSetup() throws FileNotFoundException, IOException{ 
    SeleniumDriverCore driver = new SeleniumDriverCore("config/chromeDriverConfig"); 
    Properties config = new Properties(); 
    config.load(new FileInputStream("config/testConfig")); 
    this.login = new Login(driver); 
    driver.browser.open("https://test.test.xyz"); 

    driver.browser.maximize(); 
    driver.waits.waitForPageToLoad(); 
    return driver; 
} 

@Test(groups={"parallel"}) 
public void test_one() throws FileNotFoundException, IOException{ 
    SeleniumDriverCore driver=testSetup(); 
    login.navigateToPage(Pages.LOGIN); 
    login.assertion.verifyLoginPopupAndTitleDisplayed(); 
    testCleanup(driver); 
} 

@Test(groups={"parallel"}) 
public void test_two() throws FileNotFoundException, IOException{ 
    SeleniumDriverCore driver=testSetup(); 
    login.navigateToPage(Pages.LOGIN); 
    login.assertion.verifyLoginPopupAndTitleDisplayed(); 
    testCleanup(driver); 
} 

@Test(groups={"parallel"}) 
public void test_three() throws FileNotFoundException, IOException{ 
    SeleniumDriverCore driver=testSetup(); 
    login.navigateToPage(Pages.LOGIN); 
    login.assertion.verifyLoginPopupAndTitleDisplayed(); 
    testCleanup(driver); 
} 

@Test(groups={"parallel"}) 
public void test_four() throws FileNotFoundException, IOException{ 
    SeleniumDriverCore driver=testSetup(); 
    login.navigateToPage(Pages.LOGIN); 
    login.assertion.verifyLoginPopupAndTitleDisplayed(); 
    testCleanup(driver); 
} 


public void testCleanup(SeleniumDriverCore driver){ 
    driver.close(); 
    driver.quit(); 
} 

}

这里是我的xml：

<suite name="Ontega - All Tests Mobile" parallel="methods" thread-count="2"> 
    <test name="Ontega - All Tests Mobile"> 
     <groups> 
      <run> 
       <include name="parallel"/> 
       <exclude name="open-defects"/> 
      </run> 
     </groups> 
     <packages> 
      <package name="tests.*"/> 
     </packages> 
    </test> 
</suite> 

当我运行XML，我希望我的测试能够在两个线程中同时在两个浏览器上运行，但是当我运行XML时，我得到两个浏览器ances在第一时间运行，然后他们增加和50％的测试失败，你可以看到我试图在我的每个方法中实例化驱动程序，虽然这不是我的框架如何工作，但我试图去解决这个问题的瓶颈。 任何帮助将不胜感激 在此先感谢

Answer 1

以下是在TestNG中执行此操作的一些方法。您基本上通过@BeforeMethod和@AfterMethod配置方法管理您的webdriver实例化和清理。那么您需要决定如何与您的@Test方法共享创建的webdriver实例。对于你有三种选择：

1. 您使用一个ThreadLocal变种，因为TestNG的保证给你，它会在同一个线程执行@BeforeMethod，@Test和@AfterMethod所有。

这里的一个样品，显示您这个动作

import org.openqa.selenium.chrome.ChromeDriver; 
import org.openqa.selenium.remote.RemoteWebDriver; 
import org.testng.ITestResult; 
import org.testng.Reporter; 
import org.testng.annotations.AfterMethod; 
import org.testng.annotations.BeforeMethod; 
import org.testng.annotations.DataProvider; 
import org.testng.annotations.Test; 

public class TestClassSampleUsingThreadLocal { 
    private static final ThreadLocal<RemoteWebDriver> drivers = new ThreadLocal<>(); 

    @BeforeMethod 
    public void instantiateBrowser(ITestResult testResult) { 
     RemoteWebDriver driver = new ChromeDriver(); 
     drivers.set(driver); 
    } 

    @Test(dataProvider = "dp") 
    public void testMethod(String url) { 
     Reporter.log("Launching the URL [" + url + "] on Thread [" + Thread.currentThread().getId() + "]", true); 
     driver().get(url); 
     Reporter.log("Page Title :" + driver().getTitle(), true); 
    } 

    @DataProvider(name = "dp", parallel = true) 
    public Object[][] getData() { 
     return new Object[][]{ 
       {"http://www.google.com"}, {"http://www.stackoverflow.com"}, {"http://facebook.com"} 
     }; 
    } 

    @AfterMethod 
    public void cleanupBrowser() { 
     RemoteWebDriver driver = driver(); 
     driver.quit(); 
    } 

    private RemoteWebDriver driver() { 
     RemoteWebDriver driver = drivers.get(); 
     if (driver == null) { 
      throw new IllegalStateException("Driver should have not been null."); 
     } 
     return driver; 
    } 

} 

您可以通过ITestResult对象共享的webdriver实例。以下是一个示例，展示了这一行动。

import org.openqa.selenium.chrome.ChromeDriver; 
import org.openqa.selenium.remote.RemoteWebDriver; 
import org.testng.ITestResult; 
import org.testng.Reporter; 
import org.testng.annotations.AfterMethod; 
import org.testng.annotations.BeforeMethod; 
import org.testng.annotations.DataProvider; 
import org.testng.annotations.Test; 

public class TestClassSample { 
    private static final String WEBDRIVER = "driver"; 

    @BeforeMethod 
    public void instantiateBrowser(ITestResult testResult) { 
     RemoteWebDriver driver = new ChromeDriver(); 
     testResult.setAttribute(WEBDRIVER, driver); 
    } 

    @Test(dataProvider = "dp") 
    public void testMethod(String url) { 
     Reporter.log("Launching the URL [" + url + "] on Thread [" + Thread.currentThread().getId() + "]", true); 
     driver().get(url); 
     Reporter.log("Page Title :" + driver().getTitle(), true); 
    } 

    @DataProvider(name = "dp", parallel = true) 
    public Object[][] getData() { 
     return new Object[][]{ 
       {"http://www.google.com"}, 
       {"http://www.stackoverflow.com"}, 
       {"http://facebook.com"} 
     }; 
    } 

    @AfterMethod 
    public void cleanupBrowser(ITestResult testResult) { 
     RemoteWebDriver driver = driver(testResult); 
     driver.quit(); 
    } 

    private RemoteWebDriver driver() { 
     return driver(Reporter.getCurrentTestResult()); 
    } 

    private RemoteWebDriver driver(ITestResult testResult) { 
     if (testResult == null) { 
      throw new IllegalStateException("testResult should have not been null."); 
     } 
     Object driverObject = testResult.getAttribute(WEBDRIVER); 
     if (driverObject == null) { 
      throw new IllegalStateException("Driver should have not been null."); 
     } 
     if (!(driverObject instanceof RemoteWebDriver)) { 
      throw new IllegalStateException("Driver is not a valid webdriver object"); 
     } 
     return (RemoteWebDriver) driverObject; 
    } 
} 

您提取出的webdriver实例化和净化成TestNG的监听器（一个实现一个org.testng.IInvokedMethodListener其设定所创建的webdriver到ITestResult（如图选项2 ）或成ThreadLocal（如选项1所示），你可以在我的blog post找到关于使用代码片段沿此选项的详细信息。

Answer 2

看来你创建每个测试多个驱动程序。我猜你需要保持testSetup以外的代码的一些部分（）方法

SeleniumDriverCore driver = new SeleniumDriverCore("config/chromeDriverConfig"); 
Properties config = new Properties(); 
config.load(new FileInputStream("config/testConfig")) 

我分享我的代码，我使用了并行测试的一部分，可能是将你的情况帮

我的xml