Handling multiple pages in Selenium Python - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

What is the output of this Selenium Python code snippet?

Consider the following code that opens a new tab and switches to it. What will be printed?

Selenium Python

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

browser = webdriver.Chrome()
browser.get('https://example.com')

original_window = browser.current_window_handle
browser.execute_script("window.open('https://example.org', '_blank');")
time.sleep(1)

for handle in browser.window_handles:
    if handle != original_window:
        browser.switch_to.window(handle)
        break

print(browser.title)
browser.quit()

A NoSuchWindowException

B Example Domain - example.org

C Example Domain

D selenium.common.exceptions.WebDriverException

💡 Hint

Remember that the new tab opens 'https://example.org' and the title of that page is 'Example Domain'.

The code opens 'https://example.com' first, then opens a new tab with 'https://example.org'. It switches to the new tab and prints its title, which is 'Example Domain'. Both example.com and example.org have the same title.

❓ assertion

intermediate

Which assertion correctly verifies the switch to a new window?

You have switched to a new window in Selenium. Which assertion correctly checks that the current window handle is not the original one?

Selenium Python

original_window = driver.current_window_handle
# code to open new window and switch to it

# Which assertion is correct?

A assert driver.current_window_handle == original_window

B assert driver.current_window_handle != original_window

C assert driver.window_handles == original_window

D assert driver.current_window_handle in original_window

💡 Hint

After switching, the current window handle should be different from the original.

The current window handle after switching should not be the same as the original window handle, so option B is correct.

❓ locator

advanced

Which locator strategy is best to find a link that opens a new tab?

You want to find a link that opens a new tab when clicked. The link has text 'Open New Tab' and attribute target='_blank'. Which locator is best?

A driver.find_element(By.XPATH, '//a[@target="_blank" and text()="Open New Tab"]')

B driver.find_element(By.CSS_SELECTOR, 'a[target="_blank"]')

C driver.find_element(By.LINK_TEXT, 'Open New Tab')

D driver.find_element(By.ID, 'open-new-tab')

💡 Hint

Use a locator that matches both the attribute and the visible text for precision.

Option A uses XPath to match both the target attribute and the link text, making it the most precise locator.

🔧 Debug

advanced

Why does this Selenium code raise NoSuchWindowException?

Review the code below. Why does it raise NoSuchWindowException when trying to switch windows?

Selenium Python

driver.get('https://example.com')
original = driver.current_window_handle
# Open new tab
driver.execute_script("window.open('https://example.org');")
# Incorrect switch
for handle in driver.window_handles:
    if handle == original:
        driver.switch_to.window(handle)
        break

# Trying to interact with new tab here

A The code switches back to the original window instead of the new one

B The new window handle is not in driver.window_handles

C The driver.execute_script syntax is invalid

D The browser does not support multiple tabs

💡 Hint

Check which window handle the code switches to.

The code switches to the original window handle instead of the new one, so when trying to interact with the new tab, it causes NoSuchWindowException.

❓ framework

expert

In a Selenium test framework, how to best handle multiple tabs to ensure tests are reliable?

You design a Selenium test framework that opens multiple tabs during tests. Which practice best ensures tests remain reliable and maintainable?

A Keep all tabs open and switch randomly between them as needed

B Open all tabs at the start and never close any during tests

C Use time.sleep() to wait for tabs to load before switching

D Always switch back to the original window after each tab interaction and close extra tabs

💡 Hint

Think about test isolation and resource cleanup.

Switching back to the original window and closing extra tabs prevents side effects and resource leaks, making tests more reliable.