Page class structure in Selenium Python - Test Execution Trace

Test Overview

This test checks if the login page loads correctly and the login button is clickable using a page class structure in Selenium with Python.

Test Code - unittest

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 LoginPage:
    def __init__(self, driver):
        self.driver = driver
        self.url = "https://example.com/login"
        self.login_button_locator = (By.ID, "login-btn")

    def load(self):
        self.driver.get(self.url)

    def click_login(self):
        WebDriverWait(self.driver, 10).until(
            EC.element_to_be_clickable(self.login_button_locator)
        ).click()

class TestLoginPage(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
        self.login_page = LoginPage(self.driver)

    def test_login_button_clickable(self):
        self.login_page.load()
        self.login_page.click_login()
        # Verify URL changed or login action started
        self.assertIn("dashboard", self.driver.current_url)

    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	Browser window is open but no page loaded yet	-	PASS
2	Navigates to https://example.com/login using LoginPage.load()	Login page is loaded in the browser	-	PASS
3	Waits until login button is clickable and clicks it using LoginPage.click_login()	Login button is clicked, browser navigates to dashboard page	Check if current URL contains 'dashboard'	PASS
4	Assertion verifies URL contains 'dashboard'	Browser URL is https://example.com/dashboard	self.assertIn("dashboard", self.driver.current_url)	PASS
5	Test ends and browser closes	Browser window is closed	-	PASS

Failure Scenario

Failing Condition: Login button is not found or not clickable within 10 seconds

Execution Trace Quiz - 3 Questions

What does the test verify after clicking the login button?

A The login button is visible

B The URL contains 'dashboard'

C The page title is 'Login'

D The browser is closed

Key Result

Using a page class structure helps organize locators and actions, making tests easier to read and maintain.