github.com/nibnait/go-learn@v0.0.0-20220227013611-dfa47ea6d2da/src/test/chapter/ch3/21_panic_recover_test.go (about)

     1  package ch3
     2  
     3  import (
     4  	"errors"
     5  	"fmt"
     6  	"os"
     7  	"testing"
     8  )
     9  
    10  func TestPanicVxExit1(t *testing.T) {
    11  	defer func() {
    12  		fmt.Println("Finally!")
    13  	}()
    14  	fmt.Println("Start")
    15  	//panic(errors.New("Something wrong!"))
    16  	os.Exit(-1)
    17  	fmt.Println("End")
    18  }
    19  
    20  func TestPanicVxExit2(t *testing.T) {
    21  	defer func() {
    22  		if err := recover(); err != nil {
    23  			// 相当于 catch 里面，进行回滚操作
    24  			// ⚠️ 危险！！当⼼ recover 成为恶魔，形成僵⼫服务进程，导致 health check 失效。
    25  			fmt.Println("回滚 ", err)
    26  		}
    27  	}()
    28  	fmt.Println("Start")
    29  	panic(errors.New("Something wrong!"))
    30  	//os.Exit(-1)
    31  	fmt.Println("End")
    32  }