HTML report generation in Selenium Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the HTMLTestRunner module for report generation.

Selenium Python

from [1] import HTMLTestRunner

Drag options to blanks, or click blank then click option'

Ahtmltestrunner

Bunittest

Cselenium

Dpytest

Attempts:

3 left

💡 Hint

Common Mistakes

Importing from unittest or selenium instead of htmltestrunner

Misspelling the module name

The htmltestrunner module provides the HTMLTestRunner class used to generate HTML reports in Selenium Python tests.

2fill in blank

medium

Complete the code to open the report file in write-binary mode.

Selenium Python

report = open('TestReport.html', '[1]')

Drag options to blanks, or click blank then click option'

Ar

Bwb

Cw

Da

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' instead of 'wb'

Using 'r' which is read-only mode

Opening the report file in wb mode (write-binary) is required by HTMLTestRunner to write the HTML report correctly.

3fill in blank

hard

Fix the error in creating the HTMLTestRunner instance with the correct stream parameter.

Selenium Python

runner = HTMLTestRunner(stream=[1], title='Test Report', description='Sample test run')

Drag options to blanks, or click blank then click option'

Areport

Bopen

Cfile

Doutput

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the open function instead of the file object

Using an undefined variable

The stream parameter must be the file object opened for writing the report, here named report.

4fill in blank

hard

Fill both blanks to run the test suite and close the report file properly.

Selenium Python

runner.run([1])
[2].close()

Drag options to blanks, or click blank then click option'

Asuite

Btest_suite

Creport

Drunner

Attempts:

3 left

💡 Hint

Common Mistakes

Closing the runner instead of the report file

Passing wrong variable to run()

The test suite variable is passed to runner.run() to execute tests, and the report file object must be closed after running.

5fill in blank

hard

Fill all three blanks to create a test suite, add a test case, and generate the HTML report.

Selenium Python

suite = unittest.TestSuite()
suite.addTest([1]('test_example'))
with open('Report.html', '[2]') as [3]:
    runner = HTMLTestRunner(stream=[3], title='My Report')
    runner.run(suite)

Drag options to blanks, or click blank then click option'

AMyTestCase

Bwb

Creport

Dw

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'w' instead of 'wb' for the file mode

Not using the file object as the stream

Using wrong test case class name

The test case class MyTestCase is added to the suite. The report file is opened in wb mode and assigned to report which is used as the stream for the runner.

Practice

1. What is the main purpose of generating an HTML report in Selenium Python testing?

easy

A. To avoid writing assertions

B. To speed up test execution

C. To make test results easy to read and share

D. To write test cases faster

Solution

1. Step 1: Understand the role of HTML reports

   HTML reports present test results in a clear, visual format that anyone can read.

2. Step 2: Compare with other options

   Speeding tests, writing tests faster, or avoiding assertions are unrelated to HTML reports.

3. Final Answer:

   To make test results easy to read and share -> Option C

4. Quick Check:

   HTML reports = clear, shareable results [OK]

Hint: HTML reports show results clearly for sharing [OK]

Common Mistakes:

• Thinking HTML reports speed up tests
• Confusing report generation with test writing
• Believing reports remove need for assertions

2. Which Python package is commonly used with unittest to generate HTML reports in Selenium tests?

easy

A. pytest-html

B. unittest-html

C. selenium-html

D. HtmlTestRunner

Solution

1. Step 1: Identify the package for unittest HTML reports

   HtmlTestRunner is designed to work with unittest for HTML report generation.

2. Step 2: Eliminate other options

   pytest-html is for pytest, selenium-html and unittest-html are not standard packages.

3. Final Answer:

   HtmlTestRunner -> Option D

4. Quick Check:

   unittest + HtmlTestRunner = HTML reports [OK]

Hint: HtmlTestRunner works with unittest for HTML reports [OK]

Common Mistakes:

• Choosing pytest-html for unittest tests
• Assuming selenium-html is a real package
• Confusing unittest-html as official

3. Given this code snippet using HtmlTestRunner, what folder will the HTML report be saved in?

import unittest
import HtmlTestRunner

class TestExample(unittest.TestCase):
    def test_pass(self):
        self.assertTrue(True)

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

medium

A. Current directory

B. reports folder

C. HtmlTestRunner folder

D. No folder, prints to console only

Solution

1. Step 1: Check the output parameter in HTMLTestRunner

   The output='reports' argument tells HtmlTestRunner to save reports in the 'reports' folder.

2. Step 2: Understand default behavior

   Without output specified, reports save in current directory, but here 'reports' is explicit.

3. Final Answer:

   reports folder -> Option B

4. Quick Check:

   output='reports' means save in reports folder [OK]

Hint: output='foldername' sets report save location [OK]

Common Mistakes:

• Assuming reports save in current directory by default
• Thinking HtmlTestRunner creates its own folder
• Believing reports print only to console

4. What is wrong with this code snippet for generating an HTML report using HtmlTestRunner?

import unittest
import HtmlTestRunner

class TestExample(unittest.TestCase):
    def test_fail(self):
        self.assertEqual(1, 2)

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

medium

A. Empty output string causes report not to save

B. assertEqual syntax is incorrect

C. Missing import for HtmlTestRunner

D. Test class must inherit from HtmlTestRunner

Solution

1. Step 1: Check the output parameter usage

   Setting output='' means no folder is specified, which can cause HtmlTestRunner to fail saving reports properly.

2. Step 2: Verify other parts

   assertEqual syntax is correct, HtmlTestRunner is imported, and test class inheritance is correct.

3. Final Answer:

   Empty output string causes report not to save -> Option A

4. Quick Check:

   output='' disables report folder, causing save issues [OK]

Hint: Provide a valid folder name in output to save reports [OK]

Common Mistakes:

• Thinking assertEqual(1, 2) is syntax error
• Believing test class must inherit HtmlTestRunner
• Ignoring output parameter effect

5. You want to generate an HTML report that shows detailed pass/fail results and saves in a folder named 'test_reports'. Which code snippet correctly sets this up using HtmlTestRunner with unittest?

hard

A. unittest.main(testRunner=HtmlTestRunner.HTMLTestRunner(output='test_reports'))

B. unittest.main(testRunner=HtmlTestRunner.HTMLTestRunner(report='test_reports'))

C. unittest.main(testRunner=HtmlTestRunner.HTMLTestRunner(folder='test_reports'))

D. unittest.main(testRunner=HtmlTestRunner.HTMLTestRunner(path='test_reports'))

Solution

1. Step 1: Identify correct parameter for output folder

   HtmlTestRunner uses 'output' parameter to specify the folder for saving reports.

2. Step 2: Check other parameter names

   'report', 'folder', and 'path' are not valid parameters for HtmlTestRunner's HTMLTestRunner class.

3. Final Answer:

   unittest.main(testRunner=HtmlTestRunner.HTMLTestRunner(output='test_reports')) -> Option A

4. Quick Check:

   Use output='foldername' to save reports correctly [OK]

Hint: Use output='foldername' to set report save location [OK]

Common Mistakes:

• Using wrong parameter names like report or folder
• Not specifying output folder at all
• Confusing HtmlTestRunner options with other packages