使用单个驱动程序实例的 TestNG 并行执行

Question

在我的测试套件中，我有一个 Base class，我在其中声明了一个静态 WebDriver，然后在打开一个 base url.此方法在我的所有测试用例的 BeforeMethod 中使用，因此在每个测试执行中使用驱动程序的单个静态实例，并贯穿测试用例中使用的一系列可重用方法（例如，登录方法）。

这似乎是一个问题，现在我正在尝试引入并行执行，因为看起来我需要为任何我想要同时运行的脚本单独的驱动程序实例，以避免线程干扰。有什么方法可以让我的脚本运行并行而不用重新构建我的整个套件，这样每个脚本都是完全独立编写的？

我曾尝试声明一个 WebDriver 数组，然后根据从启动套件 XML 发送的参数选择特定索引，但这没有帮助。第二个浏览器打开，但没有任何反应。

这是我的基地class:

public class Base {


public static WebDriver driver = null;

//Input client under test
public static final String Client = "Client1";

//Input default environment under test
public static final String DefaultEnvironment = "Chrome_Hub";


//CALL WEB BROWSER AND OPEN WEBSITE
public static void openURL(String environment) throws InterruptedException, IOException {

    try{

        if(environment.equals("Chrome_Hub")) {
            System.setProperty("webdriver.chrome.driver", "/Users/rossdonohoe/Desktop/SeleniumJava/Drivers/chromedriver");
            driver = new ChromeDriver();
        }
        if(environment.equals("Firefox_Hub")) {
            System.setProperty("webdriver.gecko.driver", "/Users/rossdonohoe/Desktop/SeleniumJava/Drivers/geckodriver");
            driver = new FirefoxDriver();
        }

        driver.get(DataFinder.ReadData("front end url"));


    }
    catch(Exception E) {
        E.printStackTrace();
    }
}
}

这是一个示例脚本：

public class LoginLogoutScript extends Base {


  @Test (priority = 2)
  public void login() throws InterruptedException, IOException {
        LoginLogout.loginFrontEnd();
        Assert.assertTrue(driver.getPageSource().contains("My Account") || driver.getPageSource().contains("My Dashboard"));
  }

  @Parameters({ "Environment" })
  @BeforeClass
  public void setUp(@Optional(DefaultEnvironment) String Environment) throws InterruptedException, IOException {
      Base.openURL(Environment);
  }

  @AfterClass public void tearDown() { 
      Base.driver.quit(); 
  }

}

这是该脚本中调用的方法：

public class LoginLogout extends Base {

    public static void loginFrontEnd () throws InterruptedException, IOException {
        Thread.sleep(5000);
        WebDriverWait wait = new WebDriverWait(driver, 10);
        WebElement login2 = wait.until(ExpectedConditions.elementToBeClickable(By.linkText(DataFinder.ReadData("sign in link"))));
        ((JavascriptExecutor)driver).executeScript("arguments[0].click();", login2);
        WebDriverWait wait = new WebDriverWait(driver, 15);
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("email")));
        driver.findElement(By.id("email")).sendKeys(DataFinder.ReadData("username entry"));
        driver.findElement(By.id("pass")).sendKeys("I$$\"Cnewton1");
        Thread.sleep(5000);
        driver.findElement(By.id("send2")).click();
    }
}

这是另一个脚本：

@Listeners(CustomListener.class)
public class CreateDeleteCustomerAccountScript extends Base {

  @Test (priority = 1)
  public void createAccount() throws InterruptedException, IOException {

        WebDriverWait wait = new WebDriverWait(driver, 15);
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.partialLinkText(DataFinder.ReadData("navigate to register account 1"))));
        driver.findElement(By.partialLinkText(DataFinder.ReadData("navigate to register account 1"))).click();

        driver.findElement(By.cssSelector(DataFinder.ReadData("navigate to register account 2"))).click();

        driver.findElement(By.name("firstname")).sendKeys("Testy");
        driver.findElement(By.name("lastname")).sendKeys("McTester");
        driver.findElement(By.cssSelector("#email_address")).sendKeys(Misc.generateRandomString() + "@thepixel.com");
        driver.findElement(By.name("password")).sendKeys("I$$\"Cnewton1");
        driver.findElement(By.name(DataFinder.ReadData("password confirmation"))).sendKeys("I$$\"Cnewton1");

            //verify account created
        Thread.sleep(5000);
        Assert.assertTrue(driver.findElement(By.tagName("body")).getText().contains(DataFinder.ReadData("account created message")));
  }

  @Parameters({ "Environment" })
  @BeforeClass
  public void setUp(@Optional(DefaultEnvironment) String Environment) throws InterruptedException, IOException {
      Base.openURL(Environment, "front end");
  }

  @AfterClass public void tearDown() { 
      Base.driver.quit(); 
  }
}

这是我的 XML 文件：

<?xml version="1.0" encoding="UTF-8"?>

<suite name="FullRegressionSuite" parallel="tests" thread-count="2">
<listeners>

</listeners>

  <test name="Test1">
   <parameter name ="DriverNo" value="1"/>
    <classes>
      <class name="userManagement.LoginLogoutScript"/>
    </classes>
  </test>
  <test name="Test2">
    <parameter name ="DriverNo" value="2"/>
    <classes>
      <class name="userManagement.CreateDeleteCustomerAccountScript"/>"/>
    </classes>
  </test>

       <!-- Test -->
</suite> <!-- Suite -->

Answer 1

您可以使用下面给出的 threadlocal webdriver。

public class Base {


public static ThreadLocal<WebDriver> driver = new ThreadLocal<>();

//Input client under test
public static final String Client = "Client1";

//Input default environment under test
public static final String DefaultEnvironment = "Chrome_Hub";


//CALL WEB BROWSER AND OPEN WEBSITE
public static void openURL(String environment) throws InterruptedException, IOException {

    try{

        if(environment.equals("Chrome_Hub")) {
            System.setProperty("webdriver.chrome.driver", "/Users/rossdonohoe/Desktop/SeleniumJava/Drivers/chromedriver");
            driver.set(new ChromeDriver());
        }
        if(environment.equals("Firefox_Hub")) {
            System.setProperty("webdriver.gecko.driver", "/Users/rossdonohoe/Desktop/SeleniumJava/Drivers/geckodriver");
            driver.set(new FirefoxDriver());
        }

        driver.get(DataFinder.ReadData("front end url"));


    }
    catch(Exception E) {
        E.printStackTrace();
    }
}
}

您可以使用 driver.get() 方法获取它的实例。

public class LoginLogoutScript extends Base {


  @Test (priority = 2)
  public void login() throws InterruptedException, IOException {
        LoginLogout.loginFrontEnd();
        Assert.assertTrue(driver.getPageSource().contains("My Account") || driver.get().getPageSource().contains("My Dashboard"));
  }

  @Parameters({ "Environment" })
  @BeforeClass
  public void setUp(@Optional(DefaultEnvironment) String Environment) throws InterruptedException, IOException {
      Base.openURL(Environment);
  }

  @AfterClass public void tearDown() { 
      Base.driver.get().quit(); 
  }

}

Answer 2

如果您通过 Maven 执行测试，您可以重新考虑 Fork Options so each TestNG thread will be executed in a separate JVM 实例

<forkCount>2</forkCount> <!- amend this to be equal to the number of TestNG threads -->
<reuseForks>false</reuseForks>

然而它只是掩盖了问题，更大的限制是你正在使用 static modifier for WebDriver instance, it definitely violates Parallel Testing Best Practices

使用单个驱动程序实例的 TestNG 并行执行

TestNG parallel execution with single driver instance

java

testng

selenium