>     util Worker should call a given function iteratively, in given intervals, until stopped: [2K[0G  ․ util Worker should call a given function iteratively, in given intervals, until stopped
>     util Worker should assure that no more than a given number of instances of the function are running at any given time: [2K[0G  ․ util Worker should assure that no more than a given number of instances of the function are running at any given time
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>     Dispatcher .start() and .stop() should cause the dispatcher to automatically take tasks and execute them: [2K[0G  ․ Dispatcher .start() and .stop() should cause the dispatcher to automatically take tasks and execute them
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<   66 passing (699 ms)
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>   69 passing (949 ms)