Description
var list = make([]string, 0)
var busy = make(chan bool, 1)
func AddXidToList(i string) {
busy <- true
id := xid.New()
list = append(list, id.String()+" "+i)
<-busy
}
func Test_test6(t *testing.T) {
wg := sync.WaitGroup{}
wg.Add(2)
go func() {
for i := 0; i < 1000000; i++ {
AddXidToList("1")
}
wg.Done()
}()
go func() {
for i := 0; i < 1000000; i++ {
AddXidToList("2")
}
wg.Done()
}()
wg.Wait()
for i := 0; i < len(list); i++ {
if i+1 < len(list) && list[i] > list[i+1] {
//1820049 cdiebmnlt656j2nvvvvg 2 cdiebmnlt656j2g00000 1
fmt.Println(i, list[i], list[i+1])
t.Error("big bug")
}
}
if list[len(list)-2] > list[len(list)-1] {
t.Error("big bug2")
fmt.Println(list[len(list)-2], list[len(list)-1])
}
fmt.Println("END")
}
func Test_test7(t *testing.T) {
i := 0
for {
i++
Test_test6(t)
if i == 10 {
break
}
}
}
run the method Test_test7, it print following:
1969577 cdj6vqvlt652mmnvvvvg 1 cdj6vqvlt652mmg00000 1
id_test.go:177: big bug