Full page screenshot in Selenium Python - Test Execution Trace

Test Overview

This test opens a webpage and captures a full page screenshot. It verifies that the screenshot file is created successfully.

Test Code - Selenium

Selenium Python

from selenium import webdriver
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options
import os
import time

def test_full_page_screenshot():
    options = Options()
    options.add_argument('--headless=new')
    service = Service()
    driver = webdriver.Chrome(service=service, options=options)
    try:
        driver.get('https://example.com')
        time.sleep(2)  # Wait for page to load fully
        screenshot_path = 'full_page_screenshot.png'
        # Selenium 4.1+ supports full page screenshot for Chrome
        driver.get_full_page_screenshot_as_file(screenshot_path)
        assert os.path.exists(screenshot_path), 'Screenshot file was not created.'
    finally:
        driver.quit()

Execution Trace - 6 Steps

Step	Action	System State	Assertion	Result
1	Test starts	Test environment initialized, ChromeDriver ready	-	PASS
2	Browser opens Chrome in headless mode	Chrome browser instance running without UI	-	PASS
3	Navigates to 'https://example.com'	Example.com homepage loaded fully	-	PASS
4	Waits 2 seconds for full page load	Page content fully rendered	-	PASS
5	Captures full page screenshot and saves as 'full_page_screenshot.png'	Screenshot file created in test folder	Check if 'full_page_screenshot.png' file exists	PASS
6	Closes browser and ends test	Browser closed, resources freed	-	PASS

Failure Scenario

Failing Condition: Screenshot file is not created due to permission issues or driver incompatibility

Execution Trace Quiz - 3 Questions

What does the test verify after taking the screenshot?

A That the browser is visible

B That the page title is correct

C That the screenshot file exists on disk

D That the URL contains 'example'

Key Result

Always verify that your test artifacts, like screenshots, are actually created to ensure your test is meaningful and reliable.