In unit testing of a module, it is found that for a set of test data, at the…
2018
In unit testing of a module, it is found that for a set of test data, at the maximum 90% of the code alone were tested with the probability of success 0.9. The reliability of the module is
- A.
Greater than 0.9
- B.
Equal to 0.9
- C.
At most 0.81
- D.
At least 0.81
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Correct answer: C
Reliability is estimated by multiplying the code coverage percentage by the success probability of tested code. Here, 90% (0.9) coverage and 0.9 success probability yield an upper bound of 0.81.