Grid setup and configuration in Selenium Python - Test Execution Trace

Test Overview

This test verifies that a Selenium Grid is correctly set up and configured by running a simple test on a remote node. It checks if the browser opens remotely, navigates to a page, and verifies the page title.

Test Code - unittest

Selenium Python

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.remote.webdriver import WebDriver
import unittest

class TestGridSetup(unittest.TestCase):
    def setUp(self):
        grid_url = "http://localhost:4444/wd/hub"
        capabilities = {
            "browserName": "chrome",
            "platformName": "ANY"
        }
        self.driver: WebDriver = webdriver.Remote(command_executor=grid_url, desired_capabilities=capabilities)

    def test_open_google(self):
        self.driver.get("https://www.google.com")
        title = self.driver.title
        self.assertEqual(title, "Google")

    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 unittest framework initializes	Test runner ready to execute test methods	-	PASS
2	SetUp method creates Remote WebDriver connecting to Selenium Grid at http://localhost:4444/wd/hub with Chrome capabilities	Remote WebDriver session established on Grid node with Chrome browser	Remote WebDriver session is active	PASS
3	Driver navigates to https://www.google.com	Browser on remote node opens Google homepage	Page loaded with title 'Google'	PASS
4	Assertion checks if page title equals 'Google'	Page title retrieved from remote browser	title == 'Google'	PASS
5	tearDown method quits the remote WebDriver session	Remote browser closed and session ended	-	PASS

Failure Scenario

Failing Condition: Selenium Grid hub is not running or node is not registered, causing Remote WebDriver session creation to fail

Execution Trace Quiz - 3 Questions

What does the test verify about the Selenium Grid setup?

A It verifies that the local Chrome browser is installed.

B It verifies that a remote browser session can be created and used to open a webpage.

C It verifies that the Selenium Grid hub is running on port 5555.

D It verifies that the test code runs without any imports.

Key Result

Always verify that the Selenium Grid hub and nodes are running and accessible before running tests that use Remote WebDriver sessions.