Hi! I'm getting an error when running the simulator. It is related to the mrand.Intn function from math/rand in line 220 of simulator.go. According to the Go docs, the function panics when n < 0, but I couldn't get the instruction time.Duration(mrand.Intn(int(s.activationTime))) to output a negative value in order to replicate the issue, but hardcoding the whole instruction to a constant does make the simulator work as expected. The details of the error are shown below.
Hi! I'm getting an error when running the simulator. It is related to the
mrand.Intnfunction frommath/randin line 220 of simulator.go. According to the Go docs, the function panics when n < 0, but I couldn't get the instructiontime.Duration(mrand.Intn(int(s.activationTime)))to output a negative value in order to replicate the issue, but hardcoding the whole instruction to a constant does make the simulator work as expected. The details of the error are shown below.https://github.com/brocaar/chirpstack-simulator/blob/63fdb4934dbb52f363df97dcca4eaa333864d781/internal/simulator/simulator.go#L216-L223
Console Output panic: invalid argument to Intn
goroutine 57 [running]: math/rand.(Rand).Intn(0x1890160, 0xf8475800, 0x1a8e410) /usr/local/go/src/math/rand/rand.go:169 +0x7c math/rand.Intn(...) /usr/local/go/src/math/rand/rand.go:329 github.com/brocaar/chirpstack-simulator/internal/simulator.(simulation).runSimulation(0x1a46000, 0x0, 0x0) /home/pi/chirpstack-simulator/internal/simulator/simulator.go:220 +0x5a8 github.com/brocaar/chirpstack-simulator/internal/simulator.(*simulation).start(0x1a46000) /home/pi/chirpstack-simulator/internal/simulator/simulator.go:106 +0xb8 created by github.com/brocaar/chirpstack-simulator/internal/simulator.Start /home/pi/chirpstack-simulator/internal/simulator/simulator.go:69 +0x3a4