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errorx_test.go
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errorx_test.go
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package errorx
import (
"errors"
"fmt"
"runtime/debug"
"testing"
)
type Error2 struct {
// basic
E error
StackTraces []string
// upper
ReGenerated bool
Errors []error
}
// test the stacktrace of an error
func TestNew(t *testing.T) {
// starts from a string msg
fun5 := func() error {
return NewFromString("made an error")
}
fun3 := func() error {
e := fun5()
if e != nil {
return Wrap(e)
}
return nil
}
fun2 := func() error {
e := fun3()
if e != nil {
return Wrap(e)
}
return nil
}
fun1 := func() error {
e := fun2()
if e != nil {
return New(e)
}
return nil
}
e := fun1()
if e != nil {
t.Log(e.Error())
//fmt.Println(e.(Error).PrintStackTrace())
e.(Error).PrintStackTrace()
}
}
//test new an error from a string msg
func TestNewFromString(t *testing.T) {
fun2 := func() error {
return NewFromString("an error happen")
}
fun3 := func() error {
if e := fun2(); e != nil {
return New(e)
}
return nil
}
er := fun3()
if er != nil {
fmt.Println("origin error:", er.Error())
er.(Error).PrintStackTrace()
}
}
//test new an error with existed stacktrace and generate the new error with new msg
func TestNewFromStackTrace(t *testing.T) {
fun2 := func() error {
return NewFromStackTrace([]string{
"G:/go_workspace/GOPATH/src/errorX/errorx_test.go: 49 | an error happen",
"G:/go_workspace/GOPATH/src/errorX/errorx_test.go: 43 | an error happen",
}, "inner service error")
}
fun3 := func() error {
if e := fun2(); e != nil {
return New(e)
}
return nil
}
er := fun3()
if er != nil {
fmt.Println("origin error:", er.Error())
er.(Error).PrintStackTrace()
}
}
// test regenerate a new error
func TestReGen(t *testing.T) {
// start from an official error
fun1 := func() error {
return errors.New("old official error")
}
fun2 := func() error {
if e := fun1(); e != nil {
return New(e)
}
return nil
}
fun3 := func() error {
if e := fun2(); e != nil {
return New(e)
}
return nil
}
fun4 := func() error {
if e := fun3(); e != nil {
return ReGen(e, errors.New("inner service error"))
}
return nil
}
er := fun4()
if er != nil {
fmt.Println("origin error:", er.Error())
er.(Error).PrintStackTrace()
}
}
func TestMustWrap(t *testing.T) {
//fmt.Println(MustWrap(errors.New("offial error")))
//fmt.Println(MustWrap(Empty()))
//fmt.Println(Empty())
//e := Error{
// E: nil,
// StackTraces: make([]string, 0, 30),
// ReGenerated: false,
// Errors: make([]error, 0, 30),
//}
//fmt.Println(e)
}
//test flagFormat
func TestPrintStackFormat(t *testing.T) {
rs := PrintStackFormat(LdateTime|LcauseBy|Llongfile, "main.go", 12, "an error happen")
fmt.Println(rs)
}
func TestErrorGroup(t *testing.T) {
var length = 10
var errors = make([]error, 0, length)
for i := 0; i < length; i++ {
errors = append(errors, NewFromStringf("error_%d", i+1))
}
e := GroupErrors(errors...)
fmt.Println(e)
}
func TestNewFromParam(t *testing.T) {
fmt.Println(NewFromStringWithParam("no record found", struct{ Name string }{"ft"}, struct{ Age int }{9}).Error())
}
func TestError_GenerateKeyword(t *testing.T) {
result := generateKeyWord("hello kitty beautiful")
fmt.Println(result)
if result != "hkb" {
t.Fail()
return
}
result = generateKeyWord(" hello kitty beautiful ")
fmt.Println(result)
if result != "hkb" {
t.Fail()
return
}
e := NewFromString("time out from mysql")
// result = e.(Error).GenerateKeyword()
result = GenerateKeyword(e)
fmt.Println(result)
if result != "tofm" {
t.Fail()
return
}
}
func TestHeader(t *testing.T) {
fmt.Println(Wrap(nil))
// er:= NewWithHeader(NewFromString("mysql time out"), map[string]interface{}{
// "api": "/game/pay/order",
// "user_id": 330392,
// })
// fmt.Println(er.Error())
//
er := NewWithAttach(NewFromString("mysql time out"), string(debug.Stack()))
fmt.Println(er.Error())
//er = NewFromStringWithHeaderf("user_id '%s' server error", "30939", map[string]interface{}{
// "api":"/game/pay/order/",
//})
//fmt.Println(er.Error())
//
//er = NewFromStringWithHeader("user_id '30939' server error", map[string]interface{}{
// "api":"/game/pay/order/",
//})
////fmt.Println(er.Error())
//
////er = NewFromStringWithAttach("user_id '30939' server error", "test")
////fmt.Println(er.Error())
//
//er = NewWithHeader(er, map[string]interface{}{
// "req": "111",
//})
//fmt.Println(er.Error())
}
func TestMMM(t *testing.T) {
// Wrap(Wrap(errors.New("hello"))).(Error).PrintStackTrace()
fmt.Println(NewWithAttach(NewFromString("hello"), "attach"))
}
func TestWrapContext(t *testing.T) {
fmt.Println(tmp().Error())
}
func TestWrap(t *testing.T) {
fmt.Println(tmpContext().Error())
fmt.Println(tmpWrap().Error())
}
func tmp() error {
// return NewFromStringf("nil return")
return Wrap(tmpContext())
}
func tmpContext() error {
return WrapContext(fmt.Errorf("nil return"), map[string]interface{}{
"redis-url": "localhost:1111",
"name": "errorx",
})
}
func tmpWrap() error {
return NewFromString("nil return")
}
func TestE(t *testing.T) {
e1 := fmt.Errorf("password wrong")
layer1 := Wrap(e1)
layer2 := WrapContext(layer1, nil)
layer3 := Wrap(layer2)
if msg, is := IsError(layer3, e1); is {
fmt.Println("这是一个业务错误,需要返回给客户端提示", msg)
return
} else {
fmt.Println("这是一个栈错误,需要记录日志", layer3.Error())
return
}
}
func TestSE(t *testing.T) {
se := NewServiceError("balance not enough", 10041)
layer1 := Wrap(se)
layer2 := WrapContext(layer1, nil)
if msg, is := IsServiceErr(layer2, se); is {
fmt.Printf("这是一个业务错误,需要返回给客户端提示, code: %d msg: %s\n", msg.Errcode, msg.Errmsg)
return
} else {
fmt.Println("这是一个栈错误,需要记录日志", layer2.Error())
return
}
}
func Control() {
e := ManyService()
if se, ok := IsServiceErr(fmt.Errorf("balance not enough"), nil); ok {
fmt.Println(se.Errmsg, se.Errcode)
return
}
if e != nil {
fmt.Println(Wrap(e).Error())
return
}
}
func ManyService() error {
if e := ServiceToCash(); e != nil {
return Wrap(e)
}
return nil
}
func ServiceToCash() error {
if e := UtilToCash(); e != nil {
return WrapContext(Wrap(e), nil)
}
return nil
}
var balanceLackErr = NewServiceError("balance not enough", 10001)
var balanceLackErr2 = fmt.Errorf("balance not enough")
func UtilToCash() error {
// return balanceLackErr
return balanceLackErr2
}
func TestSE2(t *testing.T) {
Control()
}
func TestSe(t *testing.T) {
//var e = NewServiceError("密码错误", 10)
var e = fmt.Errorf("pg dead")
wrape := Wrap(Wrap(Wrap(e)))
se, ok := IsServiceErr(wrape)
fmt.Println(ok)
if ok {
fmt.Println(se.Errmsg, se.Errcode)
return
}
fmt.Println("系统错误",e.Error())
}