如何在Windows 10上构建winium驱动程序服务？

Question

我使用以下类代码通过WiniumDriver启动计算器.在创建WiniumDriver实例之前,我正在启动winium驱动程序服务.

import java.io.File;
import java.io.IOException;

import org.openqa.selenium.By;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.winium.DesktopOptions;
import org.openqa.selenium.winium.WiniumDriver;
import org.openqa.selenium.winium.WiniumDriverService;
import org.testng.annotations.AfterClass;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Test;

public class CalculatorTest {

    static WiniumDriver driver = null;
    static WiniumDriverService service = null;
    static DesktopOptions options = null;

    @BeforeClass
    public static void setupEnvironment(){
        options = new DesktopOptions(); //Instantiate Winium Desktop Options
        options.setApplicationPath("C:\\Windows\\System32\\calc.exe");
        File driverPath = new File("C:\\Winium\\Winium.Desktop.Driver.exe");
        System.setProperty("webdriver.winium.desktop.driver","C:\\Winium\\Winium.Desktop.Driver.exe");
        service = new WiniumDriverService.Builder().usingDriverExecutable(driverPath).usingPort(9999).withVerbose(true)
                .withSilent(false).buildDesktopService();
        try {
            service.start();
        } catch (IOException e) {
            System.out.println("Exception while starting WINIUM service");
            e.printStackTrace();
        }
    }

    @BeforeTest
    public void startDriver(){
        driver = new WiniumDriver(service,options);
    }

    @AfterTest
    public void stopDriver(){
        driver.close();
    }

    @AfterClass
    public void tearDown(){
        service.stop();
    }

将测试类作为TestNG项运行后,观察到以下异常.

FAILED CONFIGURATION: @BeforeTest startDriver
java.lang.NullPointerException
    at org.openqa.selenium.winium.WiniumDriverCommandExecutor.<init>(WiniumDriverCommandExecutor.java:59)
    at org.openqa.selenium.winium.WiniumDriver.<init>(WiniumDriver.java:75)
    at com.bravura.automation.CalculatorTest.startDriver(CalculatorTest.java:41)

我仔细检查了calc.exe和Winium.Desktop.Driver.exe的路径,但仍然无法启动WiniumDriverService.有没有其他方法来启动此服务？winium支持windows 10吗？

Answer 1

这里的问题是,'startDriver'在setupEnvironment方法和变量之前执行service并且options没有初始化.因此它抛出空指针异常.

因为testNG下面给出了执行顺序.

@BeforeSuite
@BeforeTest
@BeforeClass
@BeforeMethod
@Test
@AfterMethod
@AfterClass
@AfterTest
@AfterSuite

有三种解决方案.

1. 更改以下方法的注释,如下所示.这样,启动驱动程序将在安装环境方法之后运行.

    @BeforeMethod
    public void startDriver(){
       driver = new WiniumDriver(service,options);
    }
   
   @AfterMethod
   public void stopDriver(){
      driver.close();
   }
   

2. 更改下面给出的注释.

   @BeforeTest
   public static void setupEnvironment(){
       options = new DesktopOptions(); //Instantiate Winium Desktop Options
       options.setApplicationPath("C:\\Windows\\System32\\calc.exe");
       File driverPath = new File("C:\\Winium\\Winium.Desktop.Driver.exe");
       System.setProperty("webdriver.winium.desktop.driver","C:\\Winium\\Winium.Desktop.Driver.exe");
       service = new WiniumDriverService.Builder().usingDriverExecutable(driverPath).usingPort(9999).withVerbose(true)
               .withSilent(false).buildDesktopService();
       try {
           service.start();
       } catch (IOException e) {
           System.out.println("Exception while starting WINIUM service");
           e.printStackTrace();
       }
   }
   
   @BeforeClass
   public void startDriver(){
       driver = new WiniumDriver(service,options);
   }
   
   @AfterClass
   public void stopDriver(){
       driver.close();
   }
   
   @AfterTest
   public void tearDown(){
       service.stop();
   }
   

3. 更改下面给出的注释.我相信,这个将是最佳解决方案.

   @BeforeTest
   public static void setupEnvironment(){
       options = new DesktopOptions(); //Instantiate Winium Desktop Options
       options.setApplicationPath("C:\\Windows\\System32\\calc.exe");
       File driverPath = new File("C:\\Winium\\Winium.Desktop.Driver.exe");
       System.setProperty("webdriver.winium.desktop.driver","C:\\Winium\\Winium.Desktop.Driver.exe");
       service = new WiniumDriverService.Builder().usingDriverExecutable(driverPath).usingPort(9999).withVerbose(true)
               .withSilent(false).buildDesktopService();
       try {
           service.start();
       } catch (IOException e) {
           System.out.println("Exception while starting WINIUM service");
           e.printStackTrace();
       }
   }
   
   @BeforeMethod
   public void startDriver(){
       driver = new WiniumDriver(service,options);
   }
   
   @AfterMethod
   public void stopDriver(){
       driver.close();
   }
   
   @AfterTest
   public void tearDown(){
       service.stop();
   }