What are the differences between JUnit 5 and JUnit 4 assertions?

What are the main differences between assertions in JUnit 5 and JUnit 4?

JUnit 5 introduces a new assertion API that is more powerful and flexible than JUnit 4. For example, JUnit 5 allows for more expressive assertions using static imports from the Assertions class.

Can you give me an example of a JUnit 5 assertion?

Sure! In JUnit 5, you can use assertEquals(expected, actual) to check if two values are equal. This is similar to JUnit 4, but JUnit 5 also supports more complex assertions like assertAll() for grouping multiple assertions.

What about the assertThrows method? Is it different in JUnit 5?

Yes, in JUnit 5, assertThrows() is more streamlined. You can use it to assert that a specific exception is thrown by a block of code, making your tests clearer and more concise.

Are there any new features in JUnit 5 assertions that I should know about?

Absolutely! JUnit 5 includes features like assertTimeout() to assert that a block of code completes within a specified duration, enhancing your ability to test performance.