Assume yоu hаve the fоllоwing JаvаDoc for a method: /*** Validates user login credentials.** - A username must be at least 5 characters long and contain only alphanumeric characters.* - A password must be at least 8 characters long and include at least one number.* - If either is invalid, the method throws an IllegalArgumentException.* - If both are valid, the method returns true.** @param username the user's username.* @param password the user's password.* @return true if the credentials are valid.* @throws IllegalArgumentException if the username or password is invalid.*/public boolean validateLogin(String username, String password); For the above example you should do a detailed Backbox test design. Take Equivalence Partitions and Boundary Value analysis into account and explain which test cases you would write (I do not want Java code here, I want your test description). Then write one Unit Test (the syntax does not have to be 100% correct but should of course be in Java).
Identify eаch instrument (Hint- Lооk аt the tips!!!):