如何使用 selenium webdriver 执行运动检测？

Question

所以我想自动化 youtube 视频。所以可用的 API 列表和 selenium 都支持 flash 对象。我担心的是如何检查视频是否正在播放？就像我可以对视频执行运动检测一样，我可以相应地通过或失败脚本。那么我们可以使用硒实现类似的效果吗？或硒有不同的方法来做到这一点。非常感谢

Answer 1

1. 我会检查当他们点击“播放”按钮时，它会变成“暂停”图标；像这样：

   import java.util.ArrayList;
   import java.util.Iterator;
   import java.util.List;
   import java.util.Set;
   
   import org.openqa.selenium.By;
   import org.openqa.selenium.JavascriptExecutor;
   import org.openqa.selenium.Keys;
   import org.openqa.selenium.WebDriver;
   import org.openqa.selenium.WebElement;
   import org.openqa.selenium.chrome.ChromeDriver;
   import org.openqa.selenium.interactions.Actions;
   import org.openqa.selenium.support.PageFactory;
   import org.openqa.selenium.support.ui.Select;
   
   
   
   public class Youtube {
   public WebDriver driver;
   private String url = "https://www.youtube.com/watch?v=MfhjkfocRR0";
   
       public Youtube() {
       System.setProperty("webdriver.chrome.driver",     "C:\\SeleniumServer\\chromedriver.exe");
   driver = new ChromeDriver();
   //driver=new FirefoxDriver();
   driver.manage().window().maximize();
   driver.get(url);
   }
   
   public void waitFor(int wait){
        try {
       Thread.sleep(wait);
       } catch (InterruptedException e) {
       e.printStackTrace();
       }
   }
   
   public boolean isYoutubePlaying(){
   try {
       //wait 4 secs for Youtube video to load
       waitFor(6000);
       WebElement     playPauseButton=driver.findElements(By.cssSelector("div.ytp-button")).get(0);
       //video is not playing here.
       if(playPauseButton.getAttribute("aria-label").equals("Play")){
           System.out.println("This Youtube video wasn't playing but we clicked on it to play the video.");
           //so we click on the play button to play the video then we return true;
           playPauseButton.click(); 
           return true;
       }else{
           //video should be playing but let's double-check
           if(playPauseButton.getAttribute("aria-label").equals("Pause")){
               System.out.println("Youtube video is already playing.");
               return true;
           }
       }
   } catch (Exception e) {
       e.printStackTrace();
   }
   //only return false if either of the 2 cases above fail.
   return false;
    }
   
   
   }//end class
   

要运行这段代码，只需像这样实例化它：

    Youtube yt=new Youtube();
    yt.isYoutubePlaying();