Test Scenarios for a coffee vending machine?

1.       Clicking on coin buttons should deposit appropriate amount into vending machine. Ex- clicking quarter button should deposit 25 cents. 

2.       Each coin deposited – should increase the total amount deposited by the appropriate amount. 

3.       Clicking on a dollar bill – deposits one dollar into the machine. 

4.       Clicking dispense button without enough money deposited - No pop should be dispensed. 

5.       Clicking dispense button with enough money deposited should dispense a pop. 

6.       Clicking dispense button with more money that required to buy a pop should dispense pop and return any money over the amount required to buy pop. 

7.       Clicking a counterfeit coin– coin should be rejected and returned immediately. 

8.       Clicking a counterfeit bill – bill should be rejected and spit back out at user. 

9.       Inserting money then pressing the coin return – total amount inserted should be returned 

10.   Coins return by coin return – should be the same coins deposited. Ex. 10 nickels deposited should yield 10 nickels returned. 

11.   Inserting one dollar and pressing dispense button with pop already in the dispenser – user should be prompted to remove pop from the dispenser before the machine dispenses another pop. 

12.   When the storage rack is empty – pressing the dispense button with appropriate amount of money inserted will not dispense a pop. 

13.   Inserted money when storage rack is empty – money should be returned to user. 

14.   Pressing ‘r’ – brings up dialog to enter machine ID. 

15.   Entering appropriate machine ID into the ID dialog – brings up fill machine dialog. 

16.   Entering more items than the storage rack can hold – user will be prompted that there are too many items. 

17.   Entering an inappropriate machine ID into the ID dialog – closes dialog without allowing user to refill the rack. 

18.   Inserting one dollar and pressing the dispense button – adds one dollar to total amount in the machine. 

19.   Clicking dispense button with no money inserted – user should be prompted for more money and no pop should be dispensed. 

20.   Display – vending machine should have the following components displayed.

1.       dispense button

2.       coin return button

3.       dispenser

4.       coin return dispenser

5.       coin slot

6.       bill slot

7.       message display

8.       Coke banner