HTML report generation in Selenium Python - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of Selenium HTML report generation snippet

What will be the output status in the generated HTML report after running this Selenium test code snippet?

Selenium Python

from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.chrome.service import Service
from selenium.webdriver.chrome.options import Options
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
import unittest
from HtmlTestRunner import HTMLTestRunner

class TestGoogleSearch(unittest.TestCase):
    def setUp(self):
        options = Options()
        options.add_argument('--headless')
        self.driver = webdriver.Chrome(options=options)

    def test_search(self):
        self.driver.get('https://www.google.com')
        search_box = self.driver.find_element(By.NAME, 'q')
        search_box.send_keys('OpenAI')
        search_box.submit()
        WebDriverWait(self.driver, 10).until(
            EC.title_contains('OpenAI')
        )
        self.assertIn('OpenAI', self.driver.title)

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

if __name__ == '__main__':
    unittest.main(testRunner=HTMLTestRunner(output='reports'))

A Test fails because the search box locator is incorrect, and the report shows one failed test.

B Test passes and the HTML report shows one passed test with no errors.

C Test raises a TimeoutException and the report shows an error in the test execution.

D Test passes but the HTML report is not generated due to missing output directory.

💡 Hint

Check if the locator and wait condition match the page behavior and if the HTMLTestRunner output folder is specified.

The code correctly locates the search box by name 'q', waits for the page title to contain 'OpenAI', and asserts the title. The HTMLTestRunner generates a report in the 'reports' folder showing one passed test.

❓ assertion

intermediate

Correct assertion for verifying HTML report content

Which assertion correctly verifies that the generated HTML report contains the text 'Tests run: 1' indicating one test was executed?

Selenium Python

with open('reports/TestGoogleSearch.html', 'r', encoding='utf-8') as report_file:
    report_content = report_file.read()

A assert 'Tests run: 1' in report_content

B assert report_content.contains('Tests run: 1')

C assert report_content.index('Tests run: 1') > 0

D assert report_content.find('Tests run: 1') == -1

💡 Hint

Use Python's 'in' keyword to check substring presence.

The 'in' keyword checks if the substring exists in the string and returns True or False, which is suitable for assert. The other options either use invalid methods or check for absence.

❓ locator

advanced

Best locator strategy for report download button in Selenium

You want to automate clicking a 'Download Report' button in the HTML report page. The button has the text 'Download Report' and a unique id 'download-btn'. Which locator is the best practice to use in Selenium for this button?

A driver.find_element(By.CLASS_NAME, 'download-btn')

B driver.find_element(By.XPATH, "//button[text()='Download Report']")

C driver.find_element(By.CSS_SELECTOR, 'button#download-btn')

D driver.find_element(By.ID, 'download-btn')

💡 Hint

ID selectors are unique and fastest for locating elements.

Using By.ID is the fastest and most reliable locator if the element has a unique id. XPath and CSS selectors work but are slower or more complex. Class name may not be unique.

🔧 Debug

advanced

Debugging missing HTML report generation

A Selenium test run with HTMLTestRunner does not generate any HTML report files. Which is the most likely cause?

A The output folder path passed to HTMLTestRunner does not exist and is not created automatically.

B The test cases have syntax errors preventing execution.

C The test methods are not prefixed with 'test_'

D The test runner is not called with unittest.main()

💡 Hint

Check if the output directory exists before running tests.

HTMLTestRunner requires the output directory to exist; it does not create it automatically. If the folder is missing, no report files are saved. Syntax errors or missing test runner calls cause different failures. Test method naming affects test discovery but not report generation if tests run.

❓ framework

expert

Configuring parallel test execution with HTML report generation

You want to run multiple Selenium tests in parallel using unittest and generate a single consolidated HTML report. Which approach is correct?

A Use unittest's built-in parallel execution with HTMLTestRunner; it merges reports automatically.

B Use threading in test code and write custom code to combine HTML reports after execution.

C Run tests in parallel with a third-party runner like pytest-xdist and generate separate HTML reports, then merge manually.

D Run tests sequentially to avoid report conflicts; HTMLTestRunner does not support parallel runs.

💡 Hint

Consider limitations of unittest and HTMLTestRunner with parallel execution.

unittest and HTMLTestRunner do not support merging reports from parallel runs automatically. Using pytest with xdist allows parallel runs and generating separate reports, which can be merged with additional tools. Running sequentially avoids conflicts but loses parallelism. Custom threading and merging is complex and error-prone.