Java Assertion: The ‘assert’ Keyword Example
Java assert statements contain a boolean expression that must be true when the assertion executes. If it is not true, it will throw an AssertionError.
JUnit 5 Assertions – JUnit assert Examples
JUnit 5 assertions help in validating the expected output with actual output of a testcase. To keep things simple, all JUnit Jupiter assertions are static methods in the org.junit.jupiter.Assertions class.