As for an engineer who should make test programs for experimental products, I want to say

"I don't need the polite and long specifications, but write down the shortest program list that ranges from 10 lines to 20 lines.

"Which is more useful, the perfect specification or the utilized sample program?"

"Do you know better?"

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To tell you the truth, I know the reason indeed.

The program could change the execution by compiler, operation system, and API spec.

Moreover, they are primary concerned about debacle because of the sample program.

I heard that only three lines of more than several thousand program lists caused the black down that spread on 1/3 of United States.