[Solved] Why is WaitGroup.Wait() hanging when using it with go test? [duplicate]

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Two issues:

  • don’t copy sync.WaitGroup: from the docs:

    • A WaitGroup must not be copied after first use.

  • you need a wg.Add(1) before launching your work – to pair with the wg.Done()

wg.Add(1) // <- add this

go func (wg *sync.WaitGroup ...) { // <- pointer
}(&wg, quitSig) // <- pointer to avoid WaitGroup copy

https://go.dev/play/p/UmeI3TdGvhg

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solved Why is WaitGroup.Wait() hanging when using it with go test? [duplicate]