Find element by class name in Selenium Python - Test Execution Trace

Test Overview

This test opens a web page, finds an element using its class name, and verifies that the element's text matches the expected value.

Test Code - Selenium

Selenium Python

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

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

    def test_find_element_by_class_name(self):
        driver = self.driver
        wait = WebDriverWait(driver, 10)
        element = wait.until(EC.presence_of_element_located((By.CLASS_NAME, 'example')))
        self.assertEqual(element.text, 'Example Domain')

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

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

Execution Trace - 5 Steps

Step	Action	System State	Assertion	Result
1	Test starts and Chrome browser opens	Chrome browser window is open, ready to load the page	-	PASS
2	Browser navigates to 'https://example.com'	Page 'https://example.com' is loaded and visible	-	PASS
3	Waits up to 10 seconds for element with class name 'example' to be present	Element with class 'example' is found on the page	Element presence verified	PASS
4	Checks that the element's text equals 'Example Domain'	Element text is 'Example Domain'	Assert element.text == 'Example Domain'	PASS
5	Browser closes and test ends	Browser window closed	-	PASS

Failure Scenario

Failing Condition: Element with class name 'example' is not found within 10 seconds

Execution Trace Quiz - 3 Questions

What does the test wait for before proceeding?

A Page title to be 'Example Domain'

B Presence of element with class name 'example'

C Element with id 'example-class' to be clickable

D Browser URL to change

Key Result

Always use explicit waits like WebDriverWait with expected conditions to reliably find elements by class name before interacting or asserting.