What are test cases when it come to JUnit testing. Are they like seperate test file, there are instructions in my hw that have me a bit confused i will post. Im not looking for an answer i just want the instructions to be simplified. Thank you.

Create a package called test and add JUnit test cases to verify the following in your MagicSquare class:

The proper number of input values was provided.

Each of the numbers between 1 and n2 occurs exactly once in the input.

When the numbers are arranged in a matrix,

sum of the rows,

sum of columns,

and sum of diagonals

must be the same value. Create four test cases; one where each of criteria 1, 2, 3 above fail, and one where they all pass.