At this point it's more of an academic exercise, I'm looking for a general solution to the problem of having a unpredictable function somewhere deeply embedded in my call hierarchy, and writing unit tests to confirm the result.

Do other languages have this problem, except for very few functions like random()?

In reply to Re^3: Truly randomized keys() in perl 5.17 - a challenge for testing? by saintmike
in thread Truly randomized keys() in perl 5.17 - a challenge for testing? by saintmike

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