25.1.1. Definition

Try these first

1. 1.

   What is unit testing?

   Hint

   Think about how you test your code while writing it.

2. 2.

   Name one key characteristic of unit testing.

   Hint

   In programming, what does 'unit' refer to?

3. 3.

   What does unit testing primarily focus on?

   • Whole system
   • Individual components
   • User acceptance

   Hint

   Think about the smallest parts of a program.

4. 4.

   Unit testing is performed by:

   • Developers
   • Testers

   Hint

   Who is writing the code usually?

5. 5.

   Create a sample unit test for a method 'multiply(int a, int b)' that returns the product of two numbers.

   Hint

   What does your assertion look like in code?

6. 6.

   Explain how refactoring code might be impacted by the presence of unit tests.

   Hint

   Think about how tests provide feedback during development.