deleted test file from main

test.go

@@ -1,55 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-	"sync"
-	"time"
-)
-
-func sendA(ch chan string) {
-	fmt.Println("start waiting A")
-	time.Sleep(20 * time.Second)
-	fmt.Println("end waiting A")
-	ch <- "a"
-	close(ch)
-}
-
-func sendB(ch chan string) {
-	fmt.Println("start waiting B")
-	time.Sleep(10 * time.Second)
-	fmt.Println("end waiting B")
-	ch <- "b"
-	close(ch)
-}
-
-func main() {
-	if err := os.Chdir(""); err != nil {
-		fmt.Println("didn't change directory")
-	}
-	wg := sync.WaitGroup{}
-	wg.Add(2)
-	chA := make(chan string)
-	chB := make(chan string)
-	fmt.Println("start sendA")
-	go sendA(chA)
-	fmt.Println("start sendB")
-	go sendB(chB)
-	fmt.Println("start printing A")
-	go printCock(chA, &wg)
-	fmt.Println("start printing B")
-	go printCock(chB, &wg)
-	wg.Wait()
-}
-
-func printCock(ch chan string, wg *sync.WaitGroup) {
-	for {
-		select {
-		case x := <-ch:
-			log.Println(x)
-			wg.Done()
-			return
-		}
-	}
-}