Testing in the software development lifecycle in Testing Fundamentals - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

When is integration testing typically performed in the software development lifecycle?

Choose the phase in the software development lifecycle when integration testing is usually done.

A After unit testing and before system testing

B Before unit testing

C After system testing and before acceptance testing

D Only after the software is deployed to production

💡 Hint

Integration testing checks how different parts work together, so it happens after individual parts are tested.

Integration testing is done after unit testing to verify that combined components work together correctly, but before system testing which tests the whole system.

❓ Predict Output

intermediate

What is the output of this test execution report summary?

Given the following test execution summary, what is the total number of failed tests?

Testing Fundamentals

Test Suite: User Login Tests
Tests run: 10
Tests passed: 8
Tests failed: 2
Tests skipped: 0

A 2

B 0

C 10

D 8

💡 Hint

Look for the line that says 'Tests failed'.

The summary clearly states 'Tests failed: 2', so the number of failed tests is 2.

❓ assertion

advanced

Which assertion correctly verifies that a function returns a non-empty list?

Choose the assertion statement that correctly checks if the function get_items() returns a list with at least one item.

Testing Fundamentals

def get_items():
    return ['apple', 'banana']

A assert get_items() == ''

B assert get_items() == []

C assert get_items() is None

D assert len(get_items()) > 0

💡 Hint

Think about how to check the size of a list.

Checking that the length of the list is greater than zero confirms it is not empty. Other options check for empty or None values incorrectly.

🔧 Debug

advanced

Identify the error in this test case code snippet

What error will this test code raise when executed?

Testing Fundamentals

def test_divide():
    result = divide(10, 0)
    assert result == 0

A AssertionError because result is not 0

B NameError because 'divide' function is not defined

C ZeroDivisionError because of division by zero

D No error, test passes

💡 Hint

Check if the function used is defined anywhere.

The code calls 'divide' which is not defined, so Python raises a NameError before any assertion or division happens.

❓ framework

expert

In a CI/CD pipeline, which testing stage should run immediately after code commit to catch errors early?

Choose the testing stage that is best suited to run right after a developer commits code to the repository in a Continuous Integration/Continuous Deployment (CI/CD) pipeline.

A System testing

B User acceptance testing

C Unit testing

D Performance testing

💡 Hint

Think about fast, automated tests that check small pieces of code.

Unit tests run quickly and verify individual components immediately after code changes, helping catch errors early in CI/CD pipelines.