Tips for effectively implementing wait time while your webpage's javascript is reloading the element

Question

Tips for effectively implementing wait time while your webpage's javascript is reloading the element

Currently, I am using Selenium WebDriver for automating my script. In the script, I have implemented a wait.until condition to click on the delivery button on the HTML page below. The issue arises because even though Selenium can locate my element, the JavaScript reloads the specific element causing the delivery button to only become clickable post-reload. As a result, my Selenium script throws an error stating "stale element reference: element is not attached to the page document". How can I resolve this error?

WebElement deliverButton = wait.until(ExpectedConditions.elementToBeClickable(By.xpath("(//button[@class='btn-to-cart nopricetohide btn btn-primary your-catalog-deliver btn-block btn-unpadded tocart-rounded'])[1]")));
deliverButton.click();
WebElement continueShoppingLink = wait.until(ExpectedConditions.elementToBeClickable(By.xpath("//a[@class='btn btn-link full-width mb-10']")));

Screenshot:

javascript selenium testing selenium-webdriver automated-tests

Answer 1

Answer №1

If you're facing a problem, there are two approaches to resolving it.

1) Utilize Async when running the code so that you can 'await' a line of code, like this:

 async function(test1){
    await driver.findElement(By.id("");
    driver.click();
    });

Alternatively, you could also try the following method:

2)

 function (test1) {
        let element = driver.findElement(By.id(elementId));
        driver.wait(until.elementIsVisible(element), 10000).then(async () =>{
            element.click();
    });

The second approach mentioned above is the one I personally use in my code and it consistently yields results.

In a more brute force manner, you could add an excessively long wait time to rule out any other potential issues masquerading as a delay problem:

driver.sleep(10000);
or 
thread.sleep(10000);

(the time measurement is in milliseconds unless otherwise stated)

If these suggestions fail to address your issue, please inform me so we can explore alternative solutions.

Answer 2

If you're facing a problem, there are two approaches to resolving it.

1) Utilize Async when running the code so that you can 'await' a line of code, like this:

 async function(test1){
    await driver.findElement(By.id("");
    driver.click();
    });

Alternatively, you could also try the following method:

2)

 function (test1) {
        let element = driver.findElement(By.id(elementId));
        driver.wait(until.elementIsVisible(element), 10000).then(async () =>{
            element.click();
    });

The second approach mentioned above is the one I personally use in my code and it consistently yields results.

In a more brute force manner, you could add an excessively long wait time to rule out any other potential issues masquerading as a delay problem:

driver.sleep(10000);
or 
thread.sleep(10000);

(the time measurement is in milliseconds unless otherwise stated)

If these suggestions fail to address your issue, please inform me so we can explore alternative solutions.

Answer 3

Answer №2

According to Jack, using async is an option, but personally, I prefer utilizing an infinite while loop.

The code snippet provided below is written in python, however, the same logic can be applied in Java as well.

def wait_for_element():
    val = True
    while val:
        web_elem = driver.find_element_by_id('id')
         try:
            web_elem.is_displayed()
         except Exception as ex:
            val = True
         else:
            val = False

I understand that relying on an infinite loop is not as efficient as using async, but in scenarios where async isn't feasible, this approach can be useful. Just remember to include a timeout for the loop to prevent endless looping if the page becomes unresponsive or fails to load.

Answer 4

According to Jack, using async is an option, but personally, I prefer utilizing an infinite while loop.

The code snippet provided below is written in python, however, the same logic can be applied in Java as well.

def wait_for_element():
    val = True
    while val:
        web_elem = driver.find_element_by_id('id')
         try:
            web_elem.is_displayed()
         except Exception as ex:
            val = True
         else:
            val = False

I understand that relying on an infinite loop is not as efficient as using async, but in scenarios where async isn't feasible, this approach can be useful. Just remember to include a timeout for the loop to prevent endless looping if the page becomes unresponsive or fails to load.

Answer 5

Answer №3

It seems that the persisting issue is due to inadequate exception handling in your code, particularly related to stale element errors.

To address this, consider incorporating a similar approach into your project. In my snippet below, I have included exception handling to prevent errors from impacting the functionality of the code:

  driver.findElement(By.id(buttonID)).then(pageElement => {                           
        driver.wait(until.elementIsVisible(pageElement), 10000).then( () => {                                                          
            pageElement.click();
                next();
            })
            .catch(ex => {
                console.log(ex.message, ex.stack)
            });
    }).catch(ex => {console.log(ex.message, ex.stack)});

The provided example showcases the utilization of catch blocks. It's important to remember that the number of catches required corresponds to the number of promises within your function. Furthermore, you can easily identify if an element throws a promise by hovering over it in Visual Studio Code.

Answer 6

It seems that the persisting issue is due to inadequate exception handling in your code, particularly related to stale element errors.

To address this, consider incorporating a similar approach into your project. In my snippet below, I have included exception handling to prevent errors from impacting the functionality of the code:

  driver.findElement(By.id(buttonID)).then(pageElement => {                           
        driver.wait(until.elementIsVisible(pageElement), 10000).then( () => {                                                          
            pageElement.click();
                next();
            })
            .catch(ex => {
                console.log(ex.message, ex.stack)
            });
    }).catch(ex => {console.log(ex.message, ex.stack)});

The provided example showcases the utilization of catch blocks. It's important to remember that the number of catches required corresponds to the number of promises within your function. Furthermore, you can easily identify if an element throws a promise by hovering over it in Visual Studio Code.

Tips for effectively implementing wait time while your webpage's javascript is reloading the element

Answer №1

Answer №2

Answer №3

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