Learn Java Unit Testing with JUnit 5 in 20 Steps - Step 05 - Writing JUnit Assertions - assertNull and assertTrue

The video tutorial covers writing unit tests with a focus on assertions. It begins with an introduction to assertions and testing scenarios, followed by testing the string length method with various cases, including corner cases. The tutorial then explains how to create and run new tests using JUnit, and explores different assert methods like assert not null and assert null. Finally, it demonstrates testing Boolean values using assert true and assert false methods.

What is the significance of testing corner cases in unit tests?

What are the overloaded methods available for assertEquals?

Describe how to test the contains method in a string.