(Solved) : J Unit Cases Test Fallowing Class Public Class Calculations Following Constants Used Indic Q28169497 . . . .

how can i do J unit cases to test the fallowing class

public class calculations {
  
  

  
   // The following constants are used to indicate
       // the cost of coffee.
       public final double NO_COFFEE =0.0;
       public final double REGULAR_COFFEE= 1.25;
       public final double DECAF_COFFEE =1.25;
       public final double CAPPUCCINO =2.00;

  
     
       public final double WHITE_BAGEL =1.25;
       public final double WHEAT_BAGEL =1.50;
            
     
     
   // The following constants are used to indicate
       // the cost of toppings.
       public final double CREAM_CHEESE =0.50;
       public final double BUTTER =0.25;
       public final