Zombie -Test Java

A quick guide to ZOMB+E

Zero checks if there is anything so not null or "" or if exist

One cheks if there are an instance of a class or value 
  like two people cant have same phone number

Many it checks in an array if something happens when values 
  are inserted and values are removed
  
Boundaries testing the limits like a phone number can only contain 8 numbers
  so there cant be 7 or 9
  
Exercise exceptional behavior if an error occurred the aplication will say ex
  "Error phonenumber to long" or "Error phonenumber to short"
DjJes