Accept ranges of users in amoc_coordinator
#174
Merged
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Sometimes we want to add some variance to the test and we want the coordinator to choose groups of roughly N users instead of uniformly choosing all groups to be of the exact same size. For this, we could give the coordinator a range of the type {Min, Max} were every group will be chosen to have N in the interval [Min, Max].
rand:uniform/1
can be used to ensure that the distribution will be pretty uniform, and in a sufficiently large scale, converge to N.As a good to have, the coordinator could keep statistics of the distribution of N in the interval.