rt: fix rng_seed
test for threaded runtime
#5133
Merged
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Motivation
The improvement to the
rng_seed
tests added in #5075 missed a case in thert_threaded
tests which was still checking for a specific value. As described in that PR, this makes the tests fragile and changing tokio internals may require updating the test.Solution
This change fixes that half-implemented improvement so that the tests no longer depend on the exact internal ordering, but rather compare two runs of separate runtimes built with the same seed to check that the results are the same.