We observed a race condition that sometimes goroutines are just closing but still measured by the goroutine Lookup of the following test.
We try to avoid this by adding `runtime.Gosched()` at the start of each test.
We observed that sometimes the `pprof.Lookup("goroutine")` resulted in a different goroutine count than `runtime.NumGoroutine()`. It might be due to a race condition, but our usage of both made it impossible to debug.
ChannelReceivesSomething (formerly WaitForChannel) originally was
located in the helpers package.
This move was done to remove a cyclic dependency with the nomand package.
