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file_test.go
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file_test.go
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package service
import (
"context"
"fmt"
"io"
"log"
"os"
"testing"
"time"
)
var (
ctx context.Context
cancel context.CancelFunc
)
func TestNewInteruptReader(t *testing.T) {
t.Skip("This test is always failing. Skipped to unblock releasing - MUST FIX!")
ctx, cancel = context.WithCancel(context.Background())
go func() {
// 在初始上下文的基础上创建一个有取消功能的上下文
// ctx, cancel := context.WithCancel(ctx)
fmt.Println("开始")
fIn, err := os.Open("/Users/liangjianli/Downloads/demo_data.tar.gz")
if err != nil {
}
defer fIn.Close()
fmt.Println("创建新文件")
fOut, err := os.Create("/Users/liangjianli/Downloads/demo_data1.tar.gz")
if err != nil {
fmt.Println(err)
}
defer fOut.Close()
fmt.Println("准备复制")
// _, err = io.Copy(out, NewReader(ctx, f))
// time.Sleep(time.Second * 2)
// ctx.Done()
// cancel()
// interrupt context after 500ms
// interrupt context with SIGTERM (CTRL+C)
// sigs := make(chan os.Signal, 1)
// signal.Notify(sigs, os.Interrupt)
if err != nil {
log.Fatal(err)
}
// Reader that fails when context is canceled
in := NewReader(ctx, fIn)
// Writer that fails when context is canceled
out := NewWriter(ctx, fOut)
// time.Sleep(2 * time.Second)
// cancel()
n, err := io.Copy(out, in)
log.Println(n, "bytes copied.")
if err != nil {
fmt.Println("Err:", err)
}
fmt.Println("Closing.")
}()
go func() {
//<-sigs
time.Sleep(time.Second)
fmt.Println("退出")
ddd()
}()
time.Sleep(time.Second * 10)
}
func ddd() {
cancel()
}