Testing Fundamentals: Unit and Integration Tests Explained Quiz

This quiz explores essential concepts of software testing, focusing on the differences between unit and integration testing, as well as mocking techniques. It aims to reinforce foundational knowledge through easy and practical questions.

1. Identifying a Unit Test

   Which option best describes a unit test for a function that adds two numbers?

   1. Running the program with random data inputs
   2. Checking the user interface response to a button click
   3. Measuring overall system performance
   4. Testing the function in isolation with specific inputs
   5. Combining all modules and running the whole application

2. Integration Test Focus

   What is the main goal of an integration test?

   1. To check spelling errors in code
   2. To validate documentation accuracy
   3. To verify how multiple units work together
   4. To ensure code style consistency
   5. To measure the speed of individual functions

3. Mocking Usage Example

   Which scenario best illustrates the use of mocking in a unit test?

   1. Replacing a real database call with a fake response
   2. Writing test cases for math operations
   3. Running the software in a live environment
   4. Measuring how long a test takes to run
   5. Ignoring test failures during development

4. Unit Test Characteristics

   Which characteristic is most important for a unit test?

   1. It requires network access for each run
   2. It runs quickly and tests a small piece of code
   3. It depends on system configuration files
   4. It involves multiple applications communicating
   5. It always tests the graphical interface

5. Integration Test Scenario

   Given two functions, one calculates totals and the other applies discounts, what type of test verifies their combined behavior?

   1. Mockup test
   2. Mutation test
   3. Unite test
   4. Syntax test
   5. Integration test

6. Mocking Advantages

   Why might you use mocking when writing a unit test for a service that sends emails?

   1. To increase the size of the codebase
   2. To make the test depend on actual network conditions
   3. To slow down the test run intentionally
   4. To avoid sending real emails during testing
   5. To change the underlying programming language

7. Isolating Tests

   Which statement best explains the purpose of isolating unit tests from external dependencies?

   1. To slow down the overall testing process
   2. To make testing more difficult for new developers
   3. To ensure consistent and reliable test results
   4. To introduce random behavior in each test run
   5. To test the compatibility with hardware devices

8. Mock vs. Fake

   What differentiates a mock object from a fake object in testing?

   1. A mock improves runtime speed, a fake always slows it down
   2. A mock is used in performance testing only
   3. A mock checks behavior, while a fake is a simpler implementation
   4. A fake generates random data for each test
   5. A fake provides statistical code analysis

9. Choosing a Test Type

   If you want to verify that two software modules exchange data correctly, which test would you choose?

   1. Integration test
   2. Unit tess
   3. Syntaxe test
   4. Automated UI test
   5. Regresion test

10. Mocking Tools Purpose

    What is the main role of a mocking tool in software testing?

    1. To track real-time system performance metrics
    2. To simulate external dependencies and control their behavior
    3. To manage source control versions of the test code
    4. To permanently delete unused code
    5. To translate comments from one language to another