Question $1)$ Details

You are given Arthmatic.java which can be found on Canvas under the Lab directory. You must write JUnit tests for all of the methods in the class. At least $5$ different tests for each method. Once you write one of the tests for a specific method, the other $4$ can be easily produced by copying$/$pasting the first one and adjusting the input$/$output parameters. it is important to test boundary inputs as most of the bugs are usually

found in those edge cases. If your tests cases are failing, because there is a bug in the given code, then it is okay. You are not required to fix the code; you just need to write the test cases for this assignment.

public class Arthmatic $\{$

public int multiply$($int operand$1,$ int operand$2)\{$

return operand$1*$ operand$2$;

$\}$

public int subtract$($int operand$1,$ int operand$2)\{$

return operand$1-$ operand$2$;

$\}$

public int add$($int operand$1,$ int operand$2)\{$

return operand$1+$ operand$2$;

$\}$

public int divide$($int operand$1,$ int operand$2)\{$

if$($divideByZero$($operand$2))\{$

$//$return a integer flag

return Integer.MAX$\_$VALUE;

$\}$else $\{$

return operand$1/$operand$2$;

$\}$

$\}$

public boolean divideByZero$($int operand$2)\{$

if$($operand$2==0)\{$

return true;

$\}$else $\{$

return false;

$\}$

$\}$

$\}$