(OO) Test Case Design

1
(OO) Test Case Design

• In the small
• Class-level (Unit testing)
• Generate (random) operation sequences on an
  object
• In the large (cluster based testing, use-case
  based testing)
• Objective test class collaboration
• Integration testing

2
Test Case Example(Unit Testing)

• Example BankAccount class
• Some Random Operation Sequences
• create.deposit.deposit.balance.withdraw.
  withdraw.close
• create.withdraw.deposit.balance.withdraw.close
• Enumerate input cases for each class method
• ensure that operation sequences cover all the
  input/parameter cases
• withdraw balance gt 0, amt lt balance,

3
Integration Testing

• Include collaborating classes
• Example BankAccount, ATMGui, and Customer
• Formulate operations according to use case. e.g.,
  
• encode-customer-info, create-account, setup-pin,
  withdraw, deposit, get-balance.