如何在Selenium WebDriver中处理间歇性警报？

Question

I have automation scenario that sometimes the system return javascript alert and sometimes not at all. I don't know what the cause of this, probably the network issue. I already create the alert handler for this:

public boolean isAlertPresent() {
    WebDriverWait wait = new WebDriverWait(driver, 5);
    wait.until(ExpectedConditions.alertIsPresent());
    return true;
}

I call this in one of my step that sometimes appear alert:

public WSSPage enterAndSearchContent(String title) throws InterruptedException {
    waitForElementTextWithEnter(searchTextField, title);
    while (isAlertPresent()){
        Alert alert = driver.switchTo().alert();
        alert.dismiss();
        break;
    }
    return PageFactory.initElements(driver, WSSPage.class);
}

The problem is when the alert doesn't show up, it will give me NoAlertPresentException, and the automation result will be failed. I want the code to move on if the alert doesn't happen by moving to the next line, in this case it will just return PageFactory.initElements(driver, WSSPage.class); Can you help me provide a better code from this? Thanks a lot.

Answer 1

JavascriptExecutor worked for you. Just take care that you should execute it before clicking the event which invoke alert.

((JavascriptExecutor) driver).executeScript("window.confirm = function(msg) { return true; }");

Note :- do not use it after clicking on event which invoke alert confirmation box. Above code by default set the confirmation box as true means you are accepting/click on ok on all confirmation box on that page if invoked

Hope it will help you :)

Answer 2

You can modify the method isAlertPresent as given below and try it. It may help you.

public boolean isAlertPresent() {
    try{
       WebDriverWait wait = new WebDriverWait(driver, 5);
       wait.until(ExpectedConditions.alertIsPresent());
       return true;
    }
    catch (NoAlertPresentException noAlert) {
      return false;
    }
    catch (TimeoutException timeOutEx){
      return false;
    }
}

Answer 3

You can include that particular exception in try catch. Then the exception will be catched and will not through any error and your execution will continue. Also create a implicit wait to handle this with less timestamp.