Selenium - 元素不可見錯誤 - 定期發生

Question

我正在Java中編寫Selenium測試來測試簡單的PHP Web應用程序。其中大部分涉及填寫字段。

如果我嘗試連續兩次（含）以上運行測試，我得到以下錯誤：

org.openqa.selenium.ElementNotVisibleException: 

Session ID: ef10680c-429b-4312-9d69-41496e7dce6a 
    at org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:127) 
    at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:93) 
    at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:42) 
    at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:163) 
    at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:82) 
    at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:601) 
    at org.openqa.selenium.remote.RemoteWebElement.execute(RemoteWebElement.java:274) 
    at org.openqa.selenium.remote.RemoteWebElement.click(RemoteWebElement.java:84) 
    at com.midamcorp.insurance.TesterNGTest.test(TesterNGTest.java:83) 

的說法是正確的元素是不可見的 - 問題是，爲什麼它不可見。在開始時，這個元素被Javascript隱藏。但是，顯示它就像點擊一個鏈接元素一樣簡單。我也在我的測試中執行這個「點擊」。

@BeforeClass 
    public static void setUpClass() throws Exception { 
     System.setProperty("webdriver.gecko.driver","C://geckodriver/geckodriver.exe"); 
     driver = new FirefoxDriver(); 
    driver.get(BASE); 
     driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS); 
    } 


    @Test 
    public void test() throws Exception { 

     // login 

    driver.findElement(By.id("ssn")).clear(); 
    driver.findElement(By.id("ssn")).sendKeys("user"); 
    driver.findElement(By.id("user")).clear(); 
    driver.findElement(By.id("user")).sendKeys("pass"); 
    driver.findElement(By.name("login")).click(); 

    // insurance screen 

    driver.findElement(By.name("phone")).clear(); 
    driver.findElement(By.id("phone")).sendKeys("phone"); 
    driver.findElement(By.id("email")).clear(); 
    driver.findElement(By.id("email")).sendKeys("email"); 
    driver.findElement(By.id("empSSN")).sendKeys("ssn"); 
    driver.findElement(By.id("address")).clear(); 
    driver.findElement(By.id("address")).sendKeys("address"); 
    driver.findElement(By.id("city")).clear(); 
    driver.findElement(By.id("city")).sendKeys("city"); 
    new Select(driver.findElement(By.id("state"))).selectByVisibleText("Missouri"); 
    driver.findElement(By.id("zip")).sendKeys("63780"); 
    driver.findElement(By.id("genderFemale")).click(); 

if(!(driver.findElement(By.cssSelector("input[type='checkbox")).isSelected())) { driver.findElement(By.cssSelector("input[type='checkbox")).click(); } 
     driver.findElement(By.cssSelector("input[value='1']")).click(); 
     new Select(driver.findElement(By.name("employmentLocation"))).selectByVisibleText("Central Office"); 
     driver.findElement(By.cssSelector("input.btn.btn-primary")).click(); 



    // enrollment 

      // the code below is supposed to see if the container for the radio buttons is hidden, if so, click the link to display them 

    if(!(driver.findElement(By.id("healthOnly")).isDisplayed())) { 
       driver.findElement(By.cssSelector("a[href='#healthOnly']")).click(); 
    } 


    // the line below is the one that throws the error; the link noted above is not being clicked and thus the container with the radio buttons remains hidden 

     List<WebElement> insuranceOptions = driver.findElements(By.cssSelector("#healthOnly input[type='radio']")); 
     insuranceOptions.get(rand.nextInt(insuranceOptions.size() - 1)).click(); 

     insuranceOptions = driver.findElements(By.cssSelector("input[name='visionID']")); 
     insuranceOptions.get(rand.nextInt(insuranceOptions.size() - 1)).click(); 

我簡單的Javascript/jQuery函數來顯示和隱藏元素。當我手動點擊它時，它按預期工作。

$(".insuranceOptionsToggle").click(function(e){ 
e.preventDefault(); 
$($(this).attr("href")).toggle(); 
$(this).toggleClass("active"); 
}); 

Answer 1

您可能只需稍等片刻即可讓元素變得可見。

順便說一句，你不想使用該jQuery函數來取消隱藏元素，因爲沒有用戶將要使用該函數來取消隱藏該元素。只能自動執行用戶可以執行的操作。