WebDriver启动的时候很容易无限挂起，直到外围框架设定的超时时间达到而退出运行，给测试运行带来很大的困扰。而实际上WebDriver有一组timeout的设置方法，启动时的挂起属于页面加载的范畴，所以可以考虑用timeouts().pageLoadTimeout()来重新启动一个有效的实例来执行测试。
Java代码：
| * Description: catch page load timeout Exception and restart a new session. * 内容描述：通过页面跳转是否超时来测试WebDriver启动时是否发生挂死异常。 * * @param driver RemoteWebDriver object. * @param browser the browser mode. * @param testUrl the url used to navigate by the driver.get method. * @throws Exception */ private boolean hasLoadPageSucceeded(RemoteWebDriver driver, String browser, String testUrl) throws Exception { try { driver.manage().timeouts().pageLoadTimeout(5, TimeUnit.SECONDS); driver.get(testUrl); return true; } catch (TimeoutException te) { LOG.error("******************本次启动WebDriver异常挂起******************"); setBuildEnvChoice(browser); driverObjectInitalize(); return false; } } /** * Description: catch page load timeout Exception and restart a new session. * 内容描述：循环一定次数测试WebDriver启动是否挂死。 * * @param driver RemoteWebDriver object. * @param browser the browser mode. * @param testUrl the url used to navigate by the driver.get method. * @param repeatTimes retry times. * @throws Exception */ private void driverStatusTest(RemoteWebDriver driver, String browser, String testUrl, int repeatTimes) throws Exception { int index = 0; boolean suspended = true; while (index < repeatTimes && suspended){ suspended = !hasLoadPageSucceeded(driver, browser, testUrl); index ++; } if (index == repeatTimes && suspended){ throw new RuntimeException("can not start webdriver successfully, it's suspended!"); } } /** * Description: start webdirver after capability settings completed. * 内容描述：在做好配置之后创建WebDriver实例。 * * @throws Exception */ private String driverObjectInitalize() throws Exception{ if (USE_DRIVERSERVER){//是否使用IEDirverServer driver = new RemoteWebDriver(service.getUrl(), capability); return service.getUrl().toString(); }else{ URL url = new URL("http://localhost:" + server.getPort() + "/wd/hub"); driver = new RemoteWebDriver(url, capability); return "http://localhost:" + server.getPort() + "/wd/hub"; } } /** * Description: start webdirver * 内容描述：启动WebDriver实例。 * * @param browser the browser mode * @throws RuntimeException */ protected void startWebDriver(String browser) { try { setBrowserMode(browser); String url = driverObjectInitalize();//about:blank is useless on some machines. driverStatusTest(driver, browser, url, 2); driver.manage().timeouts().implicitlyWait(maxWaitfor, TimeUnit.SECONDS); driver.manage().timeouts().setScriptTimeout(maxWaitfor, TimeUnit.SECONDS); driver.manage().timeouts().pageLoadTimeout(maxLoadTime, TimeUnit.SECONDS); } catch (Exception e) { LOG.error(e); throw new RuntimeException(e); } } /** * Description: set browser mode on local machines: do not close browsers already opened. * 内容描述：选择在本机执行，有人工干预，无需杀掉浏览器进程。 * * @throws Exception */ private void setBrowserMode(String browser) throws Exception{ if (browser.toLowerCase().contains("ie") || browser.toLowerCase().contains("internetexplorer")) { capability = DesiredCapabilities.internetExplorer(); } else if (browser.toLowerCase().contains("ff") || browser.toLowerCase().contains("firefox")) { capability = DesiredCapabilities.firefox(); } else if (browser.toLowerCase().contains("chrome")) { capability = DesiredCapabilities.chrome(); } else if (browser.toLowerCase().contains("safari")) { capability = DesiredCapabilities.safari(); } else if (browser.toLowerCase().contains("opera")) { capability = DesiredCapabilities.opera(); } else if (browser.toLowerCase().contains("htmlunit")) { capability = DesiredCapabilities.htmlUnit(); } else { throw new IllegalArgumentException("you are using wrong mode of browser paltform!"); } } |
