Java：Selenium返回脚本超时，而不是找不到元素

如何解决Java：Selenium返回脚本超时，而不是找不到元素

我有一个奇怪的问题。页面和PageObject存在于Selenium正常工作的其他页面和PageObjects之间的情况下，会发生这种情况。但是对于此页面（和PageObject），Selenium没有。

当我尝试访问不在页面上的页面元素时，硒返回几分钟后出现以下错误，而不是返回“找不到元素”：

org.openqa.selenium.TimeoutException: timeout: Timed out receiving message from renderer: 10.000
...
org.openqa.selenium.ScriptTimeoutException: script timeout
(Session info: chrome=84.0.4147.105)
Build info: version: '3.141.59',revision: 'e82be7d358',time: '2018-11-14T08:17:03'
System info: host: 'ubuntu',ip: '127.0.1.1',os.name: 'Linux',os.arch: 'amd64',os.version: 
'5.3.0-7648-generic',java.version: '1.8.0_265'
Driver info: org.openqa.selenium.chrome.ChromeDriver
Capabilities {acceptInsecureCerts: false,browserName: chrome,browserVersion: 84.0.4147.105,c
chrome: {chromedriverVersion: 84.0.4147.105 (a6b12dfad666...,userDataDir: 
/tmp/.org.chromium.Chromium...},goog:chromeOptions: {debuggerAddress: localhost:36301},javascriptEnabled: true,networkConnectionEnabled: false,pageLoadStrategy: normal,platform: LINUX,platformName: LINUX,proxy: Proxy(),setWindowRect: true,strictFileInteractability: false,timeouts: {implicit: 0,pageLoad: 300000,script: 30000},unhandledPromptBehavior: dismiss and 
notify,webauthn:virtualAuthenticators: true}
Session ID: a87f945bc7eb66a98cec5f0b2416b47a
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
 at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
 at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
 at 
org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:187)
 at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:122)
 at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:49)
 at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:158)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:552)
at org.openqa.selenium.remote.RemoteWebDriver.executeAsyncScript(RemoteWebDriver.java:506)
at 
no.husbanken.e2e.rammeverk.selenium.driver.ExtendedWebDriver.isPageReady(ExtendedWebDriver.java:46)
 at 
no.husbanken.e2e.rammeverk.selenium.driver.ExtendedWebDriver.findElement(ExtendedWebDriver.java:65)

我知道超时本身并不是很奇怪，但是当我尝试访问其他页面上不存在的元素时，它们会返回预期的“找不到元素”。

PageObject：

public class VedleggPage2 {
    private ExtendedWebDriver driver;
    private String url;

    @FindBy(css = "[data-e2e-selector=sidetittel]")
    private WebElement sidetittel;
    @FindBy(css = "[data-e2e-selector=vedleggtekst]")
    private WebElement vedleggtekst;

    public VedleggPage2() {
        this.driver = Browser.extendedDriver();
        this.url = ConfigManager.config.getEsoknadWebUrl() + "soknad/";
        PageFactory.initElements(driver,this);
    }

    public void navigerTil() {
        navigerTil(Session.scenarioState.getSoknadId(SOKNAD_1_TAG));

        //For testing purposes:
        List<WebElement> jajaja = driver.findElements(By.cssSelector("sidetittel"));
        Boolean janei = sidetittel.isDisplayed();
        Boolean neija = vedleggtekst.isDisplayed();
        sidetittel.click();
        String s = sidetittel.getText()
        driver.findElement(By.id("sidetittel")).click();
        driver.findElement(By.cssSelector("[data-e2e-selector=sidetittel]")).click();
        driver.findElement(By.cssSelector("[data-e2e-selector=vedleggtekst]")).click();
        driver.findElement(By.id("notexisting")).click();
        driver.findElement(By.id("notexisting")).getText();
        Boolean visible1 = driver.findElement(By.id("sidetittel")).isDisplayed();
        Boolean visible2 = driver.findElement(By.cssSelector("[data-e2e-
          selector=vedleggtekst]")).isDisplayed();
        Boolean visible3 = driver.findElement(By.cssSelector("[data-e2e-
          selector=vedleggtekst]")).isDisplayed();
        Boolean visible4 = driver.findElement(By.id("notexisting")).isDisplayed();
        
    }
}

所有尝试访问“ //出于测试目的”行下现有和不存在的元素的尝试都会导致上面的长时间超时和脚本超时错误，而不是“找不到元素”。而且，某些元素肯定存在，并且不应导致任何错误。（非常基本的）PageObject代码中没有任何东西会导致此行为。

我什至尝试将问题行放置在其他PageObjects中，并且它们在那里的行为完全相同。当那些其他PageObjects用于访问其各自的页面时，它们将按预期工作。所以现在看来，这种情况发生在该特定网页上。

有什么想法吗？

更新：更多故障排除显示，如果我导航到同一站点/应用程序中的另一个页面，则它的工作原理就像一个超级按钮。因此，超时问题出在特定页面上（还有其他页面，因为我怀疑只有这样一个页面）。

UPDATE2：驱动程序初始化和isPageReady（）方法位于与应用程序代码分离的框架中。我认为这是相关的代码：

ExtendedWebDriver.java：

public ExtendedWebDriver(final WebDriver webDriver,final String 
venteScript) {
    if (!(webDriver instanceof JavascriptExecutor)) {
        throw new WebDriverException("The WebDriver instance must implement 
        JavaScriptExecutor interface.");
    }
    if (venteScript == null || venteScript.isEmpty()) {
        throw new WebDriverException("Ingen ventescript spesifisert");
    }
    this.webDriver = webDriver;
    this.jsExecutor = (JavascriptExecutor) webDriver;
    this.venteScript = venteScript;
}

public JavascriptExecutor getJsExecutor() {
    return jsExecutor;
}

public void isPageReady() {
    Object response = jsExecutor.executeAsyncScript(venteScript);
    if (response != null) {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        response = jsExecutor.executeAsyncScript(venteScript);
        if(response!=null) {
            throw new IllegalStateException(format("Responsen fra 
             isPageReady() skal alltid være null,men var: %s",response));
        }
    }
}

WebDriverFactory.java：

public class WebDriverFactory {

    public static ExtendedWebDriver getExtendedWebDriver(WebDriver driver,SeleniumOptions.WebAppTeknologi teknologi) {
        return new ExtendedWebDriver(driver,JsUtils.getScript(teknologi));
    }
}

JsUtils.java：

public class JsUtils {
    private static final HashMap<SeleniumOptions.WebAppTeknologi,String> scripts;

    static {
        scripts = new HashMap<>();
        initScripts();
    }

    private static void initScripts() {
        scripts.put(SeleniumOptions.WebAppTeknologi.ANGULAR,getAngularScript());
        scripts.put(SeleniumOptions.WebAppTeknologi.PRIMEFACES,getPrimefacesScript());
    }

    private static String getAngularScript() {
        return "function getNg1Hooks(t,e){function n(t){try{if(!e&&angular.getTestability){var n=angular.getTestability(t);if" +
            "(n)return{$$testability:n}}else{var i=angular.element(t).injector();if(i)return{$injector:i}}}catch(t)" +
            "{}}function i(t){for(var e=document.querySelectorAll(t),i=0;i<e.length;i++){var r=n(e[i]);if(r)return r}}if(t)" +
            "return i(t);if(window.__TESTABILITY__NG1_APP_ROOT_INJECTOR__){var r=window" +
            ".__TESTABILITY__NG1_APP_ROOT_INJECTOR__,a=null;try{a=r.get(\"$$testability\")}catch(t){}return{$injector:r," +
            "$$testability:a}}return n(document.body)||i(\"[ng-app]\")||i(\"[ng\\\\:app]\")||i(\"[ng-controller]\")||i" +
            "(\"[ng\\\\:controller]\")}waitForAngular=function(t,e){try{var n=e;if(!window.angular&&!window" +
            ".getAngularTestability)throw new Error(\"both angularJS testability and angular testability are undefined.  " +
            "This could be either because this is a non-angular page or because your test involves client-side navigation," +
            "which can interfere with Protractor's bootstrapping.  See http://git.io/v4gXM for details\");!function(e){if" +
            "(window.angular){var n=getNg1Hooks(t);if(n)if(n.$$testability)n.$$testability.whenStable(e);else{if(!n" +
            ".$injector)throw t?new Error(\"root element (\"+t+\") has no injector. this may mean it is not inside ng-app" +
            ".\"):new Error('Could not automatically find injector on page: \"'+window.location.toString()+'\".  Consider " +
            "using config.rootEl');n.$injector.get(\"$browser\").notifyWhenNoOutstandingRequests(e)}else e()}else e()}" +
            "(function(){if(window.getAngularTestability){if(t){var e=null,i=document.querySelector(t);try{e=window" +
            ".getAngularTestability(i)}catch(t){}if(e)return void e.whenStable(n)}var r=window.getAllAngularTestabilities()" +
            ",a=r.length;if(0===a)return void n();var o=function(){0==--a&&n()};r.forEach(function(t){t.whenStable(o)})" +
            "}else n()})}catch(t){e(t.message)}},waitForAngular(\"body\",arguments[arguments.length-1]);";
    }

    private static String getPrimefacesScript() {
        return "waitForPrimefaces=function(e){try{if(!window.jQuery)throw window.jQuery?new Error(\"Unknown Error\"):new Error" +
            "(\"window.jQuery is undefined.  This could be either because this is a non-jquery page or because your test " +
            "involves client-side navigation\");if(WaitForAjax(),void 0===window.PrimeFaces)throw new Error(\"typeof " +
            "PrimeFaces  is undefined.  This could be either because this is a non-primefaces page or because your test " +
            "involves client-side navigation\");WaitForPF(),e(null)}catch(i){e(i.message)}};var WaitForAjax=function()" +
            "{0!==window.jQuery.active&&setTimeout(WaitForAjax,50)},WaitForPF=function(){window.PrimeFaces.ajax.Queue" +
            ".isEmpty()||setTimeout(WaitForPF,50)};waitForPrimefaces(arguments[arguments.length-1]);";
    }

    public static String getScript(SeleniumOptions.WebAppTeknologi key) {
        return scripts.get(key);
    }

Java：Selenium返回脚本超时，而不是找不到元素

如何解决Java：Selenium返回脚本超时，而不是找不到元素

相关推荐