Go channel 테스트 코드

package main

import (

"fmt"

"time"

)

func main() {

c1 := make(chan string, 1)

go func() {

time.Sleep(time.Second * 5)

c1 <- "result 1"

}()

fmt.Println("1")

select {

case res := <-c1:

fmt.Println(res)

case <-time.After(time.Second * 3):

fmt.Println("timeout 1")

}

c2 := make(chan string, 1)

go func() {

time.Sleep(time.Second * 5)

c2 <- "result 2"

}()

fmt.Println("2")

select {

case res := <-c2:

fmt.Println(res)

case <-time.After(time.Second * 10):

fmt.Println("timeout 2")

}

}