java - Webdriver - 与远程浏览器通信时出错

Question

即使在多次等待等之后，我仍然不断收到以下错误。我目前使用的是 Firefox 26.0 并收到以下错误。当条件为真时，测试工作正常，但如果检查 html 中的子字符串时的条件为假，则失败总是给出此错误。出现这个奇怪错误的原因是什么。我想显示正确的错误。

令人惊讶的是，测试在我的笔记本电脑(Linux mint)上运行良好。服务器有ubuntu和firefox 26.0

    String abc = wd.findElement(By.tagName("html")).getText();
    System.out.println(abc);
    if (!abc.contains("Narendra Modiii")) {
       System.out.println("came here");
       File scrFile = ((TakesScreenshot)wd).getScreenshotAs(OutputType.FILE);
       FileUtils.copyFile(scrFile, new File("failedscreenshot.png"));

又恢复正常了

    String abc = wd.findElement(By.tagName("html")).getText();
    System.out.println(abc);
    if (!abc.contains("Narendra Modiii")) {
      // System.out.println("came here");
       File scrFile = ((TakesScreenshot)wd).getScreenshotAs(OutputType.FILE);
       FileUtils.copyFile(scrFile, new File("failedscreenshot.png"));

给出以下异常

Jun 04, 2014 10:20:55 AM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: I/O exception (org.apache.http.NoHttpResponseException) caught when processing request: The target server failed to respond
Jun 04, 2014 10:20:55 AM org.apache.http.impl.client.DefaultRequestDirector tryExecute
INFO: Retrying request

以下是我的 java webdriver 测试

public class classqb8ksladhq {
    public static void main(String[] args) {
    FirefoxDriver wd = null;
    try {
        String Xport = System.getProperty("lmportal.xvfb.id", ":1");
        final File firefoxPath = new File(System.getProperty("lmportal.deploy.firefox.path",
            "/usr/bin/firefox"));
        FirefoxBinary firefoxBinary = new FirefoxBinary(firefoxPath);
        firefoxBinary.setEnvironmentProperty("DISPLAY", Xport);
        wd = new FirefoxDriver(firefoxBinary, null);
        wd.manage().timeouts().implicitlyWait(60, TimeUnit.SECONDS);
        wd.get("http://dev.scroll.in/");
        wd.findElement(By.xpath("//div[@class='searchbox']/input")).click();
        Thread.sleep(5*1000);
        wd.findElement(By.xpath("//div[@class='searchbox']/input")).clear();
        Thread.sleep(5*1000);
        wd.findElement(By.xpath("//div[@class='searchbox']/input")).sendKeys("bjp");
        Thread.sleep(60*1000);
        if (!wd.findElement(By.tagName("html")).getText().contains("zzzzzzzz")) {
           File scrFile = ((TakesScreenshot)wd).getScreenshotAs(OutputType.FILE);
           FileUtils.copyFile(scrFile, new File("failedscreenshot.png"));

            throw new RuntimeException("!wd.findElement(By.tagName(\"html\")).getText().contains(\"Narendra Modiii\") is false");
        }
        System.out.println("Test ran successfully.");
      }
      catch (Exception e) {
          try{
              File scrFile = ((TakesScreenshot)wd).getScreenshotAs(OutputType.FILE);
              FileUtils.copyFile(scrFile, new File("failedscreenshot.png"));
              e.printStackTrace();
          } catch(Exception e1) {
          }
       }
      }
    //wd.quit()
}

Answer 1

假设是因为超时问题，检查Configuring timeouts