test cases for arithametical division function?

Question

sample software test cases for division function for mathematical calculation

Answer 1

if divisor = 0
-> say divisor isn't valid

if divisor = 1 (optional)
-> just return the dividend (there's no real need to do the division)

if divisor = -1 (optional)
-> return the negative of the dividend

else
-> perform division and return answer


I hope that's what you were asking for...
You question is somewhat unclear =)

Answer 2

I m not into testing but i guess u should check for -

1 - Only proper numeric value is inserted
2 - should not allow 0 as divisor

what else.. i can think of these 2 only. It can be increased if you are looking for some specified range of division operation...

Answer 3

Most important test is division by zero.
Then you can different test cases,
1) numerator greater than denominator and vice versa
2) -ve and +ve values for both denominator and numerator.
3) int, float, double in numerator and denominator

Answer 4

Ur test case should include division by zero case.
it should be between 2 numbers and not just at begining.... like that