Test cases for adding fingerprint in login form using biometric device



  • Can you suggest me some test cases for fingerprint functionality?

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  • Here are a couple of positive & negative test cases for the fingerprint scanner. You can validate feature(login in your case)based on what is allowed per spec.

    • Register any of your fingers(say thumb of your right hand).
    • Swipe with a registered finger on log-in from a locked screen.
    • Swipe with a registered finger on log-in after the restart.
    • Swipe registered hand in an up-to-down, down-to-up, right-to-left, left-to-right, circular motion, wave it above without contact, with gloves on, with oily fingers etc.
    • Try with the left thumb(counterpart of registered) with the above scenarios.
    • Try with all other fingers of the hand.
    • Try with the palm of the hand.
    • Try with partial contact of the registered finger - left portion up, right portion up, top portion up, bottom portion up
    • Try with the back of the registered finger.
    • Try with registered composite keys(ex. more than one finger) this will spawn its own set of scenarios.
    • Try swiping with registered or with unregistered fingers when a user is logged in(not locked)
    • Try after screensaver locks the screen.
    • Try after installing updates for fingerprint reader software or other software.
    • Try with hardware updates.
    • Try with a mould created from your registered finger.(I used favicol to create mask)
    • Slow speed swipe, medium speed swipe, high-speed swipe.
    • Try repeated locking and swiping to see if it stops working after a certain point.
    • Check-in combination with other authentication options such as card reader.
    • Try when the computer is in sleep mode.
    • Try after hitting ctrl + alt + del or without hitting those keys.
    • Try with the power cord on or on battery mode.


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