medium10 pts · first answer countstest-designstate-transition-testing

A transition with a guard

In a wallet state machine, "Withdraw" moves Active → Active only if balance ≥ amount; otherwise it is rejected. What must your tests cover for this transition?

A.Only the case where the guard is trueB.Only the case where the balance is zeroC.The guard is internal, so it needs no testsD.Both the guard true and the guard false cases

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A transition with a guard

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