Why Every Software Tester Should Learn Selenium in 2026

# pip install selenium   (Selenium 4.6+ manages drivers automatically)
from selenium import webdriver
from selenium.webdriver.common.by import By

driver = webdriver.Chrome()
try:
    driver.get("https://www.selenium.dev/selenium/web/web-form.html")
    driver.find_element(By.NAME, "my-text").send_keys("Hello Selenium")
    driver.find_element(By.CSS_SELECTOR, "button").click()
    message = driver.find_element(By.ID, "message").text
    assert message == "Received!"
finally:
    driver.quit()

from selenium import webdriver

for make_driver in (webdriver.Chrome, webdriver.Firefox, webdriver.Edge):
    driver = make_driver()
    try:
        driver.get("https://www.selenium.dev/selenium/web/web-form.html")
        print(make_driver.__name__, "title:", driver.title)
    finally:
        driver.quit()
# Each browser must be installed on the machine.

from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

wait = WebDriverWait(driver, 10)
button = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, "button")))
button.click()
message = wait.until(EC.visibility_of_element_located((By.ID, "message")))
assert message.text == "Received!"

from selenium.webdriver.common.by import By
from selenium.webdriver.support.relative_locator import locate_with

password = driver.find_element(By.NAME, "my-password")
# Find the input element directly above the password field
text_input = driver.find_element(locate_with(By.TAG_NAME, "input").above(password))
text_input.send_keys("found by position")

# Save evidence of a single element
password.screenshot("password_field.png")

Pick from your own regression list:
[ ] Login with valid credentials
[ ] Login with invalid password (error message)
[ ] Search returns results for a known item
[ ] Add to cart and check cart count
[ ] Logout returns to login page
Criteria: run often, stable UI, clear expected result

- Automated 25 regression test cases with Selenium
  WebDriver (Python) using explicit waits and stable
  locators; tests run nightly and on demand
- Reduced repetitive manual regression effort by
  automating the most frequently executed cases

Week 1: Install Python + Selenium; first script on a
        practice page; learn By.ID, NAME, CSS
Week 2: Explicit waits; forms, dropdowns, alerts,
        new windows; screenshots on failure
Week 3: pytest structure; fixtures for the driver;
        10 test cases on a demo site
Week 4: Page objects for 2 pages; run tests headless;
        push to GitHub with a README

Official or widely used practice targets:
- selenium.dev/selenium/web/web-form.html
- saucedemo.com (demo store for automation practice)
- the-internet.herokuapp.com (common UI scenarios)
Practise only on sites intended for automation.

30 min  Learn one concept (e.g. select dropdowns)
30 min  Automate one real test case
15 min  Run the suite; fix any failure
15 min  Note what broke and why