Question

What is an assertion?

Answer 1

It is a part of the JUnit framework.
Basically, assertion is simply your assumption about the results of the program you're testing. By using assertions or 'assertEquals' you put in the result you expect the program to have when running your test cases

Comments

Thank you for clarifying this for me!

Answer 2

I believe it is part of the unit test that asserts the answer you want. from our lab I found this: assertEquals("BCD", StringUtils.caesarCipher("ABC", 1));

the assertEquals is used to validate if the answer is correct or not, in this case its checking if the strings are equal

Comments

its also imported if this is helpful as well: import static org.junit.jupiter.api.Assertions.*;

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Thank you for the example. This is very helpful