Continuous Delivery testing in Testing Fundamentals - Test Execution Trace

Test Overview

This test simulates a Continuous Delivery pipeline step where the application is automatically deployed to a staging environment and verified for successful deployment. It checks that the deployment page loads and shows a success message, ensuring the delivery process works smoothly.

Test Code - Selenium with unittest

Testing Fundamentals

import unittest
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

class TestContinuousDeliveryDeployment(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome()
        self.driver.implicitly_wait(5)

    def test_deployment_success_message(self):
        driver = self.driver
        driver.get('https://staging.example.com/deployment-status')

        # Wait until the deployment status element is visible
        status_element = WebDriverWait(driver, 10).until(
            EC.visibility_of_element_located((By.ID, 'deployment-status'))
        )

        # Verify the deployment success message is displayed
        self.assertIn('Deployment Successful', status_element.text)

    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 and ready	-	PASS
2	Browser navigates to 'https://staging.example.com/deployment-status'	Deployment status page loads in the browser	-	PASS
3	WebDriverWait waits up to 10 seconds for element with ID 'deployment-status' to be visible	Deployment status element is visible on the page	Check element with ID 'deployment-status' is present and visible	PASS
4	Assert that the text 'Deployment Successful' is present in the deployment status element	Deployment status element contains the success message text	Verify 'Deployment Successful' text is in element text	PASS
5	Browser closes and test ends	Browser window is closed	-	PASS

Failure Scenario

Failing Condition: The deployment status element does not appear or does not contain the success message

Execution Trace Quiz - 3 Questions

What does the test verify on the deployment status page?

A That the login form is present

B That the page shows 'Deployment Successful' message

C That the browser can open any website

D That the deployment button is clickable

Key Result

Always wait explicitly for key elements in Continuous Delivery tests to ensure the deployment page is fully loaded before checking success messages. This prevents flaky tests caused by timing issues.