func TestFail(t *testing.T) {
Convey("Standard error", t, func() {
err := errors.New("Error 1 occurred.")
Convey("should have no inner", func() {
So(fail.GetInner(err), ShouldBeNil)
})
Convey("should have no location", func() {
So(fail.GetLocation(err), ShouldBeEmpty)
})
Convey("should have no stack trace", func() {
So(fail.GetStackTrace(err), ShouldBeEmpty)
})
Convey("GetOriginalError() should return itself", func() {
So(fail.GetOriginalError(err), ShouldEqual, err)
})
Convey("GetType() should return type of itself", func() {
So(fail.GetType(err), ShouldEqual, reflect.TypeOf(err))
})
})
Convey("Simple extended error", t, func() {
errInner := errors.New("Error 1 occurred.")
err := fail.New(errInner)
Convey("should have correct message", func() {
So(err.Error(), ShouldEqual, "Error 1 occurred.")
})
Convey("should have no inner", func() {
So(fail.GetInner(err), ShouldBeNil)
})
Convey("should have correct location", func() {
So(fail.GetLocation(err), ShouldContainSubstring, "github.com/nbgo/fail/fail_test.go:60")
So(fail.GetLocation(err), ShouldContainSubstring, "TestFail.")
})
Convey("should have correct stack trace", func() {
stackTrace := fail.GetStackTrace(err)
So(stackTrace, ShouldContainSubstring, "TestFail.")
So(stackTrace, ShouldContainSubstring, "fail_test.go:60")
So(stackTrace, ShouldContainSubstring, "fail_test.go:77")
})
})
Convey("Composite extended error", t, func() {
err1 := fail.Newf("Error %v occurred.", 1)
err2 := fail.News("Error 2 occurred.")
err1c := fail.NewWithInner(err2, err1)
err2c := fail.New(&MyError{"Error 3 occured", err1c})
Convey("stack trace 1 check", func() {
So(strings.Split(fail.GetStackTrace(err2c), "\n")[0], ShouldContainSubstring, "fail_test.go")
})
Convey("stack trace 2 check", func() {
So(strings.Split(fail.GetStackTrace(err1c), "\n")[0], ShouldContainSubstring, "fail_test.go")
})
Convey("stack trace 3 check", func() {
So(strings.Split(fail.GetStackTrace(err2), "\n")[0], ShouldContainSubstring, "fail_test.go")
})
Convey("stack trace 4 check", func() {
So(strings.Split(fail.GetStackTrace(err1), "\n")[0], ShouldContainSubstring, "fail_test.go")
})
Convey("should have correct full details", func() {
details := fail.GetFullDetails(err2c)
fmt.Println("\n" + details)
So(details, ShouldNotContainSubstring, "fail.extendedError")
})
Convey("should have correct message", func() {
So(err2c.Error(), ShouldEqual, "MyError: Error 3 occured. Reason: Error 2 occurred.")
})
Convey("should have correct inner 1 level error", func() {
inner := fail.GetInner(err2c)
So(inner, ShouldNotBeNil)
So(inner.Error(), ShouldEqual, "Error 2 occurred.")
Convey("should have correct inner 2 level error", func() {
inner2 := fail.GetInner(inner)
So(inner2, ShouldNotBeNil)
So(inner2.Error(), ShouldEqual, "Error 1 occurred.")
})
})
Convey("GetOriginalError() should return correct error", func() {
So(fail.GetOriginalError(err1c), ShouldEqual, fail.GetOriginalError(err2))
})
})
Convey("ErrWithReason", t, func() {
innerErr := fail.News("inner error")
err := fail.NewErrWithReason("some error", innerErr)
Convey("should have its own text and reason", func() {
So(err.Error(), ShouldEqual, "some error: inner error")
})
Convey("should return correct inner error", func() {
gotInnerErr := fail.GetInner(err)
So(gotInnerErr, ShouldNotBeNil)
So(gotInnerErr.Error(), ShouldEqual, "inner error")
So(gotInnerErr, ShouldEqual, innerErr)
})
Convey("should have correct stack trace", func() {
So(strings.Split(fail.GetStackTrace(err), "\n")[0], ShouldContainSubstring, "fail_test.go")
})
})
Convey("StackTrace()", t, func() {
stackTrace := fail.StackTrace()
fmt.Println("\n" + stackTrace)
So(strings.Split(stackTrace, "\n")[0], ShouldContainSubstring, "fail_test.go")
func() {
stackTrace := fail.StackTrace(1)
fmt.Println("\n" + stackTrace)
So(strings.Split(stackTrace, "\n")[0], ShouldContainSubstring, "fail_test.go")
}()
})
Convey("IsError()", t, func() {
innerErr := errors.New("test1")
err2 := fail.NewErrWithReason("test2", innerErr)
err3 := fail.NewErrWithReason("test3", err2)
err4 := fail.News("test4")
Convey("should return true when composite error has checked error in its hierarchy", func() {
So(fail.IsError(err3, innerErr), ShouldBeTrue)
})
Convey("should return true when checked error is itself", func() {
So(fail.IsError(innerErr, innerErr), ShouldBeTrue)
})
Convey("should return false when composite error does not have checked error in its hierarchy", func() {
So(fail.IsError(err4, innerErr), ShouldBeFalse)
})
})
Convey("AreErrorsOfEqualType()", t, func() {
err1 := &MyError{}
err2 := &MyError{}
err3 := MyError{}
err4 := fail.News("test")
So(fail.AreErrorsOfEqualType(err1, err2), ShouldBeTrue)
So(fail.AreErrorsOfEqualType(err1, err3), ShouldBeTrue)
So(fail.AreErrorsOfEqualType(err3, err2), ShouldBeTrue)
So(fail.AreErrorsOfEqualType(err1, err4), ShouldBeFalse)
So(fail.AreErrorsOfEqualType(err3, err4), ShouldBeFalse)
})
Convey("GetErrorByType()", t, func() {
innerErr := &MyError{}
err2 := fail.NewErrWithReason("test2", innerErr)
err3 := fail.NewErrWithReason("test3", err2)
err4 := fail.News("test4")
So(fail.GetErrorByType(err3, MyError{}), ShouldEqual, innerErr)
So(fail.GetErrorByType(err4, MyError{}), ShouldBeNil)
})
Convey("ErrWithFields", t, func() {
err := fail.New(fail.New(MyErrWithFields{"p1", "p2"}))
So(err.Error(), ShouldEqual, "This is an error with fields: p1, p2")
errWithFields := err.(fail.ErrorWithFields)
fields := errWithFields.Fields()
So(fields, ShouldNotBeNil)
So(errWithFields.Fields(), ShouldResemble, map[string]interface{}{"param1": "p1", "param2": "p2"})
err = fail.News("test")
errWithFields = err.(fail.ErrorWithFields)
fields = errWithFields.Fields()
So(fields, ShouldBeNil)
})
}
func (provider *DirectServiceProvider) processRequests(c context.Context, r *http.Request, reqs []*request) []*response {
resps := make([]*response, len(reqs))
respsChannel := make(chan *response, len(reqs))
for _, req := range reqs {
go func(req *request) {
resp := &response{
Tid: req.Tid,
Action: req.Action,
Method: req.Method,
Type: req.Type,
}
var tStart time.Time
profilingStarted := false
logProfiling := func() {
if profilingStarted {
duration := time.Now().Sub(tStart)
log.Print(logLevelInfo, fmt.Sprintf("%s.%s() %v ", req.Action, req.Method, duration), map[string]interface{}{"duration": duration, "action": req.Action, "method": req.Method})
profilingStarted = false
}
}
defer func() {
logProfiling()
if err := recover(); err != nil {
log.Print(fail.New(ErrDirectActionMethod{req.Action, req.Method, err, true}))
resp.Type = "exception"
respMessage := fmt.Sprintf("%v", err)
resp.Message = &respMessage
}
respsChannel <- resp
}()
// Create instance of action type
actionInfo := provider.actionsInfo[req.Action]
if provider.debug {
log.Print(fmt.Sprintf("Create instance of action %s (type %v)", req.Action, actionInfo.Type))
}
actionVal := reflect.New(actionInfo.Type).Elem()
// Set context and request
if c != nil || r != nil {
if provider.debug {
log.Print("Set action context/request.")
}
contextType := reflect.TypeOf((*context.Context)(nil)).Elem()
requestType := reflect.TypeOf(&http.Request{})
fieldsLen := actionInfo.Type.NumField()
for i := 0; i < fieldsLen; i++ {
t := actionInfo.Type.Field(i).Type
if t.Implements(contextType) {
if c != nil {
if provider.debug {
log.Print("Set action context.")
}
actionVal.Field(i).Set(reflect.ValueOf(c))
} else {
if provider.debug {
log.Print(logLevelWarn, "Context cannot be set to action instance because context is nil.")
}
}
}
if t == requestType {
if r != nil {
if provider.debug {
log.Print("Set action request.")
}
actionVal.Field(i).Set(reflect.ValueOf(r))
}
}
}
}
if provider.debug {
log.Print(fmt.Sprintf("Prepare arguments for method %s.%s", req.Action, req.Method))
}
methodInfo := actionInfo.Methods[req.Method]
directMethod := actionInfo.DirectMethods[req.Method]
isFormHandler := false
if directMethod.FormHandler != nil {
isFormHandler = *directMethod.FormHandler
}
if provider.debug {
log.Print(fmt.Sprintf("Direct method to use: %s, formhandler=%v", directMethod.Name, isFormHandler))
}
methodArgsLen := methodInfo.Type.NumIn() - 1
var args []reflect.Value
if (req.Data != nil && !isFormHandler) || (req.FormData != nil && isFormHandler) {
if isFormHandler {
if provider.debug {
log.Print("Prepare arguments for form handler call.")
}
args = make([]reflect.Value, 1)
args[0] = reflect.ValueOf(req.FormData)
// TODO: Support structure type argument for form handler.
} else {
args = make([]reflect.Value, methodArgsLen)
var argsArray []json.RawMessage
if err := json.Unmarshal(req.Data, &argsArray); err != nil {
panic(fail.NewErrWithReason("could not parse request data", err))
}
for i, arg := range argsArray {
methodArgType := methodInfo.Type.In(i + 1)
if provider.debug {
log.Print(fmt.Sprintf("Parse `%v` into %v", string(arg), methodArgType))
}
argValue := reflect.New(methodArgType).Elem()
argRef := argValue.Addr().Interface()
json.Unmarshal(arg, argRef)
args[i] = reflect.ValueOf(argValue.Interface())
}
}
}
if provider.profile {
profilingStarted = true
tStart = time.Now()
}
if provider.debug {
log.Print(fmt.Sprintf("Call method %s.%s", req.Action, req.Method))
}
// Call action method.
resultsValues := actionVal.MethodByName(methodInfo.Name).Call(args)
logProfiling()
for i, resultValue := range resultsValues {
if methodInfo.Type.Out(i).Name() == "error" {
if err, isErr := resultValue.Interface().(error); isErr {
log.Print(&ErrDirectActionMethod{req.Action, req.Method, err, false})
resp.Type = "exception"
respMessage := fmt.Sprintf("%v", err)
resp.Message = &respMessage
resp.Result = nil
break
}
} else {
result := resultValue.Interface()
resp.Result = result
}
}
}(req)
}
for i := 0; i < len(reqs); i++ {
var resp = <-respsChannel
resps[i] = resp
}
return resps
}
