data := 0
	_ = data
	go func() {
		mtx <- struct{}{}
		data = 42
		<-mtx
		done <- struct{}{}
	}()
	mtx <- struct{}{}
	data = 43
	<-mtx
	<-done
}

func TestNoRaceSelectMutex(t *testing.T) {
	done := make(chan struct{})
	mtx := make(chan struct{}, 1)
	aux := make(chan bool)
	data := 0
	_ = data
	go func() {
		select {
		case mtx <- struct{}{}:
		case <-aux:
		}