Handling CAPTCHAs (strategies) in Selenium Python - Test Execution Trace

Test Overview

This test simulates a login attempt on a website with a CAPTCHA. It verifies that the CAPTCHA is detected and the test handles it by skipping the login to avoid failure.

Test Code - unittest

Selenium Python

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.common.exceptions import NoSuchElementException
import unittest

class TestLoginWithCaptcha(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
        self.driver.get('https://example.com/login')

    def test_login_handling_captcha(self):
        driver = self.driver
        try:
            captcha = driver.find_element(By.ID, 'captcha')
            print('CAPTCHA detected, skipping login.')
            self.skipTest('CAPTCHA present, manual intervention needed')
        except NoSuchElementException:
            username = driver.find_element(By.ID, 'username')
            password = driver.find_element(By.ID, 'password')
            username.send_keys('testuser')
            password.send_keys('password123')
            driver.find_element(By.ID, 'login-button').click()
            welcome = driver.find_element(By.ID, 'welcome-message')
            self.assertTrue(welcome.is_displayed())

    def tearDown(self):
        self.driver.quit()

if __name__ == '__main__':
    unittest.main()

Execution Trace - 4 Steps

Step	Action	System State	Assertion	Result
1	Test starts and opens Chrome browser	Browser opened at https://example.com/login showing login form	-	PASS
2	Test tries to find CAPTCHA element by ID 'captcha'	Page shows login form with CAPTCHA present	Check if CAPTCHA element is found	PASS
3	CAPTCHA detected, test skips login to avoid failure	Test logs 'CAPTCHA detected, skipping login.' and skips test	Skip test due to CAPTCHA presence	PASS
4	Browser closes after test ends	Browser closed	-	PASS

Failure Scenario

Failing Condition: CAPTCHA is not detected but login fails due to incorrect credentials or page changes

Execution Trace Quiz - 3 Questions

What does the test do when it finds a CAPTCHA on the login page?

A Attempts to solve the CAPTCHA automatically

B Skips the login test to avoid failure

C Ignores the CAPTCHA and proceeds with login

D Fails the test immediately

Key Result

When testing pages with CAPTCHAs, detect their presence first and skip or handle tests accordingly to avoid false failures.