It's working!

channels-routines-test.go

package main

import (
	"fmt"
	"time"
	"runtime"
)

func main() {

	fmt.Println("init")

	ch := gen()

	fmt.Println("run routine")

	go gook(ch)

	fmt.Println("continue")

	runtime.Goexit()
}

func gook(ch chan string) {
	for {
		data := <-ch

		fmt.Println(data)
	}
}

func gen() chan string {
	out := make(chan string)
	go func() {
		for {
			time.Sleep(time.Second * 1)

			out <- "ping"
		}
	}()
	return out
}