发生 JavaScript 异常：无法检查非元素参数的显示性 - 尝试与 webelements 交互时出错

Question

此异常发生在 '.click()' 、 '.sendkeys() 或任何其他即将对元素执行的操作的行。 Webelement 是可访问的，但对这些 webelement 的操作会抛出以下异常。只有 SafariDriver 才会出现此问题。我无法在 stackoverflow 或其他站点上找到有关此异常的很多信息。请分享您对此的发现。 感谢您花时间和精力阅读我的问题。提前致谢。

org.openqa.selenium.WebDriverException: An unknown error occurred: A JavaScript exception occured: Cannot check the displayedness of a non-Element argument.
Build info: version: '3.141.59'
System info: os.name: 'Mac OS X', os.arch: 'x86_64', os.version: '10.14.6', java.version: '11.0.4'
Driver info: org.openqa.selenium.safari.SafariDriver
Capabilities {acceptInsecureCerts: false, browserName: Safari, browserVersion: 13.1, javascriptEnabled: true, platform: MAC, platformName: MAC, safari:automaticInspection: false, safari:automaticProfiling: false, safari:diagnose: false, safari:platformVersion: 10.14.6, safari:useSimulator: false, setWindowRect: true, strictFileInteractability: false, webkit:WebRTC: {DisableICECandidateFiltering: false, DisableInsecureMediaCapture: false}}


    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)
    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.RemoteWebElement.execute(RemoteWebElement.java:285)
    at org.openqa.selenium.remote.RemoteWebElement.click(RemoteWebElement.java:84)
    at testcases.SafariDesktop.performActions(SafariDesktop.java:39)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:566)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:134)
    at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:597)
    at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:173)
    at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
    at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:816)
    at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:146)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1540)
    at org.testng.TestRunner.privateRun(TestRunner.java:766)
    at org.testng.TestRunner.run(TestRunner.java:587)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
    at org.testng.SuiteRunner.run(SuiteRunner.java:286)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1187)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1109)
    at org.testng.TestNG.runSuites(TestNG.java:1039)
    at org.testng.TestNG.run(TestNG.java:1007)
    at com.intellij.rt.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:66)
    at com.intellij.rt.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:110)

Answer 1

有时，Web 元素不响应 Webdriver 命令，在这种情况下，对元素执行 javascript 命令就可以了。

((JavascriptExecutor) driver).executeScript("arguments[0].click();", element );

Answer 2

在使用默认发送键时在 Java Selenium 3.141.59 上有同样的问题，通过使用键盘操作（操作）解决了它，如下所示：

import org.openqa.selenium.interactions.Actions;

final WebElement webElement = driver.findElement(By.id("some_id"));;
new Actions(driver).click(webElement).perform();
new Actions(driver).sendKeys(webElement, "Hello World!").perform();

这个解决方案比 Javascript 的模拟效果更好（有时它会在目标文本字段中插入所需的值但不会启动预期的事件......）