Microsoft Interview Question Software Engineer / Developers
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Function testing:
- srihari January 15, 2006------------------
valid test cases:
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insert exact change and try to get item. expect no change return
insert more money and try to get item. expect exact change return
if the vending machine reads card, insert the appropriate card and try to get a drink
invalid test cases:
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insert less money and try to get item.
without inserting money , try to get item
insert right amount of money , make an invalid choice (one not present in the snack racks)
if the vending machine reads card, insert your drivers licence and try to get a drink
try to insert a paper of same dimensions as a dollar bill
try to insert 50,100,500,1000 dollar bill
try to insert 1 Cent
try to insert money and without inserting a choice, press change return (sometimes i do this to get quarters for my laundry machine. well .. if i were to design this, i would disallow this)
try to insert right amount of money, choose a snack that the vending machine is out of
insert a canadian dollar in a machine that accepts only US dollars
Performace:
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Measure the average time it takes to dispense an item using stop watch
stress testing:
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without inserting the money kick the machine
insert the money and kick the machine
insert 100 dollars (20 $5 bills) and keep making choice s continuosly
globalization testing:
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if i were to take the machine to India, what would i need to modify ? Probably label the snack racks in Hindi..
Modify the currency reader to Rupees..Change the power unit..
security:
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try to rob the vending machine..use a crow bar to break it down..it might call 911..it might sound alarm..or it might just give up
This is all I can think of, if any one comes with cases other than these please do post.