Hard-coded values make tests very brittle.

[lassepe]

I just realized that many of the tests use hard-coded values for comparison. Since the random number generator changes between Julia versions most of these tests fail on all versions but the one that was used during development of the tests (1.3?).

[lassepe]

An alternative may be: https://github.com/JuliaRandom/StableRNGs.jl