StaleElementReferenceException handling in Selenium Python - Test Execution Trace

Test Overview

This test opens a webpage, tries to click a button that may become stale, and handles the StaleElementReferenceException by retrying the element lookup and click. It verifies that the button click succeeds without error.

Test Code - Selenium

Selenium Python

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.common.exceptions import StaleElementReferenceException
import time

def test_click_button_with_stale_handling():
    driver = webdriver.Chrome()
    driver.get('https://example.com/dynamic-button')
    
    max_attempts = 3
    attempts = 0
    while attempts < max_attempts:
        try:
            button = driver.find_element(By.ID, 'dynamic-btn')
            button.click()
            break  # success
        except StaleElementReferenceException:
            attempts += 1
            time.sleep(1)  # wait before retry
    else:
        assert False, 'Button remained stale after retries'
    
    # Verify some result after click
    message = driver.find_element(By.ID, 'result-msg').text
    assert message == 'Button clicked!', f'Unexpected message: {message}'
    driver.quit()

Execution Trace - 8 Steps

Step	Action	System State	Assertion	Result
1	Test starts and opens Chrome browser	Browser window opened, ready to navigate	-	PASS
2	Navigates to 'https://example.com/dynamic-button'	Page with dynamic button loaded	-	PASS
3	Finds button element with ID 'dynamic-btn'	Button element located in DOM	-	PASS
4	Clicks the button	Button click triggers page update	-	FAIL
5	Catches StaleElementReferenceException, retries find and click	Button element refreshed in DOM	-	PASS
6	Clicks the refreshed button successfully	Button click triggers page update	-	PASS
7	Finds element with ID 'result-msg' and reads text	Result message displayed: 'Button clicked!'	Assert message text equals 'Button clicked!'	PASS
8	Test ends and browser closes	Browser closed	-	PASS

Failure Scenario

Failing Condition: Button element remains stale after 3 retries

Execution Trace Quiz - 3 Questions

What exception does the test handle when the button becomes stale?

A TimeoutException

B NoSuchElementException

C StaleElementReferenceException

D ElementNotInteractableException

Key Result

When elements on a page update dynamically, they can become stale. Handling StaleElementReferenceException by retrying element lookup and action helps make tests more reliable.