25.9. JUnit Assertions

Try these first

1. 1.

   What does the method assertEquals do?

   Hint

   Think about what you compare in your tests.

2. 2.

   Write an assertion to check if a variable x is equal to 10.

   Hint

   Use assertEquals with expected value first.

3. 3.

   What method do you use to check if two values are equal?

   • assertEqual
   • assertEquals
   • checkEqual

   Hint

   Think about the naming convention for checks.

4. 4.

   True or False: assertTrue checks if a condition is false.

   • True
   • False

   Hint

   Remember what assertTrue signifies.

5. 5.

   Write a unit test that uses assertEquals to compare two calculated values potentially returned from methods.

   Hint

   Think about what you expect from the calculations.

6. 6.

   How would you structure a test using assertThrows to ensure a method throws an exception for invalid input?

   Hint

   Consider how your method handles invalid data.