Compatibility testing in Testing Fundamentals - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding Compatibility Testing Scope

Which of the following best describes the primary goal of compatibility testing?

A To verify that software works correctly across different browsers, devices, and operating systems.

B To check if the software meets the specified functional requirements.

C To measure the software's performance under heavy load conditions.

D To ensure the software's user interface is visually appealing.

💡 Hint

Think about what compatibility means in everyday life, like using the same app on different phones.

Compatibility testing ensures the software behaves correctly on various platforms and environments, such as browsers and devices.

❓ Predict Output

intermediate

Result of Compatibility Test Report Summary

Given the following test report summary for a web app tested on three browsers, what is the total number of passed tests?

Testing Fundamentals

Browser: Chrome - Passed: 120, Failed: 5
Browser: Firefox - Passed: 115, Failed: 10
Browser: Safari - Passed: 110, Failed: 15

A 345

B 350

C 335

D 360

💡 Hint

Add the passed tests from all browsers.

Adding 120 + 115 + 110 equals 345 passed tests in total.

❓ assertion

advanced

Valid Assertion for Cross-Browser Compatibility

Which assertion correctly verifies that a web page's title is the same across Chrome, Firefox, and Safari during compatibility testing?

Testing Fundamentals

titles = {'Chrome': 'Home - MyApp', 'Firefox': 'Home - MyApp', 'Safari': 'Home - MyApp'}

A assert titles['Chrome'] != titles['Firefox']

B assert 'Home' in titles['Safari'] and 'MyApp' in titles['Chrome']

C assert len(set(titles.values())) == 1

D assert titles['Chrome'] == 'Home - MyApp' or titles['Firefox'] == 'Home - MyApp'

💡 Hint

Check if all titles are identical by using a set.

Using a set of the titles' values and checking its length equals 1 confirms all titles are the same.

🔧 Debug

advanced

Identify the Compatibility Testing Script Error

Review the following Python snippet used to test compatibility across devices. Which option correctly identifies the error?

Testing Fundamentals

devices = ['iPhone', 'Android', 'Windows Phone']
for device in devices:
    print(f"Testing on {device}")

A TypeError because 'devices' is not iterable.

B SyntaxError due to missing colon after the for loop declaration.

C NameError because 'device' is not defined.

D IndentationError due to incorrect indentation of the print statement.

💡 Hint

Check the syntax of the for loop line carefully.

The for loop line is missing a colon at the end, causing a SyntaxError.

❓ framework

expert

Choosing the Best Tool for Compatibility Testing Automation

You need to automate compatibility testing for a web application across multiple browsers and devices. Which tool is best suited for this task?

A JUnit for unit testing Java backend code.

B Postman for API testing.

C JMeter for load and performance testing.

D Selenium WebDriver with a cloud-based cross-browser testing service like BrowserStack.

💡 Hint

Think about tools that support browser automation and multiple environments.

Selenium WebDriver combined with BrowserStack allows automated tests across many browsers and devices, ideal for compatibility testing.