An informational calculator for term deposit interests needs to be tested. For a given deposit amount and the client’s age, the calculator shows the annual interest rate.
The following rules apply:
- The minimum deposit amount is $100.00.
- Regular interest rates don’t apply for deposits greater than $10,000.00.
The annual interest rate depends on the deposit amount as follows:
Deposit amount Annual interest rate $100.00 - $999.99 1.0% $1,000.00 - $4,999.99 1.3% $5,000.00 - $10,000.00 1.5%
- Only adults (i.e. 18 and older) are eligible to open a term deposit account.
- Clients 60 and older have the applicable annual interest rate increased by 20%.
How many test cases are required to form an adequate test suite for this app? An adequate test suite should test all boundary values.