Element screenshot in Selenium Python - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is an element screenshot in Selenium?

An element screenshot captures an image of a specific web element on a page, not the entire page. It helps focus on the part you want to test or verify visually.

beginner

How do you take a screenshot of a web element using Selenium in Python?

Use the method element.screenshot('filename.png') where element is the web element you want to capture.

beginner

Why is taking an element screenshot useful in testing?

It helps verify the appearance and state of a specific element, like a button or image, without capturing the whole page. This makes tests faster and more focused.

intermediate

What should you ensure before taking an element screenshot?

Make sure the element is visible and fully loaded on the page. Otherwise, the screenshot might be blank or incomplete.

beginner

Write a simple Python Selenium code snippet to take a screenshot of a button with id 'submit'.

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

browser = webdriver.Chrome()
browser.get('https://example.com')
button = browser.find_element(By.ID, 'submit')
button.screenshot('submit_button.png')
browser.quit()

Which Selenium method captures a screenshot of a specific web element?

A element.get_screenshot()

B driver.save_screenshot('file.png')

C driver.get_screenshot_as_file('file.png')

D element.screenshot('file.png')

Only element.screenshot('file.png') captures the screenshot of a specific element. The others capture the whole page or are invalid.

What happens if you try to take an element screenshot when the element is not visible?

A Screenshot captures the whole page instead

B Selenium throws an error

C Screenshot will be blank or incomplete

D Screenshot captures the last visible state

If the element is not visible, the screenshot will be blank or incomplete because there is nothing to capture.

Which of these is NOT a benefit of element screenshots?

A Captures entire webpage layout

B Focused visual verification

C Helps isolate UI issues

D Faster test execution

Element screenshots do NOT capture the entire webpage layout; they only capture the specific element.

In Selenium Python, which object do you call screenshot() on to capture an element screenshot?

A WebElement instance

B WebDriver instance

C Browser instance

D Screenshot utility class

The screenshot() method is called on a WebElement instance representing the element to capture.

What file format is commonly used when saving element screenshots in Selenium?

A .txt

B .png

C .docx

D .json

Screenshots are saved as image files, commonly in PNG format for quality and compatibility.

Explain how to take a screenshot of a specific web element using Selenium in Python and why it is useful.

Think about capturing just one part of the page instead of everything.

Describe common issues you might face when taking element screenshots and how to avoid them.

Consider what happens if the element is hidden or not ready.