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Hi, Below is a question on white box testing. Kindly help
me in answering it. How many test cases are needed to
obtain 100% branch coverage. This question was asked in
ISTQB foudation level exam - Dec21 2008.
Read(A,C)
If(A<10) then Print A;
Endif
If(C>100) then Print C is greater then A
else if(C<100) then print only C
Endif else
Options -
a. 4
b. 3
c. 2
d. 1
Kindly answer with explanation so that it would be easy to
understand
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Answer Posted / rama mohan parini
Require 3 Path test cases.
Test Case 1 - A is any value > 9 and C = 100 to check that
nothing is printed.
Test Case 2 - A is any value < 10 and C is > 100 to check
that Print A and
Print C is greater than A lines are printed
Test Case 3 - A is any value, and C is < 100 to check that
Print A ( only if A is < 10)
Print C is greater than A is printed.
We should use Cyclomatic complexity formula to calculate
number of paths easily
C = E - N + 2
| Is This Answer Correct ? | 4 Yes | 2 No |
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