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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package status
import (
"errors"
"fmt"
"reflect"
"testing"
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/ptypes"
apb "github.com/golang/protobuf/ptypes/any"
dpb "github.com/golang/protobuf/ptypes/duration"
cpb "google.golang.org/genproto/googleapis/rpc/code"
epb "google.golang.org/genproto/googleapis/rpc/errdetails"
spb "google.golang.org/genproto/googleapis/rpc/status"
"google.golang.org/grpc/codes"
)
func TestErrorsWithSameParameters(t *testing.T) {
const description = "some description"
e1 := Errorf(codes.AlreadyExists, description)
e2 := Errorf(codes.AlreadyExists, description)
if e1 == e2 || !reflect.DeepEqual(e1, e2) {
t.Fatalf("Errors should be equivalent but unique - e1: %v, %v e2: %p, %v", e1.(*statusError), e1, e2.(*statusError), e2)
}
}
func TestFromToProto(t *testing.T) {
s := &spb.Status{
Code: int32(codes.Internal),
Message: "test test test",
Details: []*apb.Any{{TypeUrl: "foo", Value: []byte{3, 2, 1}}},
}
err := FromProto(s)
if got := err.Proto(); !proto.Equal(s, got) {
t.Fatalf("Expected errors to be identical - s: %v got: %v", s, got)
}
}
func TestFromNilProto(t *testing.T) {
tests := []*Status{nil, FromProto(nil)}
for _, s := range tests {
if c := s.Code(); c != codes.OK {
t.Errorf("s: %v - Expected s.Code() = OK; got %v", s, c)
}
if m := s.Message(); m != "" {
t.Errorf("s: %v - Expected s.Message() = \"\"; got %q", s, m)
}
if p := s.Proto(); p != nil {
t.Errorf("s: %v - Expected s.Proto() = nil; got %q", s, p)
}
if e := s.Err(); e != nil {
t.Errorf("s: %v - Expected s.Err() = nil; got %v", s, e)
}
}
}
func TestError(t *testing.T) {
err := Error(codes.Internal, "test description")
if got, want := err.Error(), "rpc error: code = Internal desc = test description"; got != want {
t.Fatalf("err.Error() = %q; want %q", got, want)
}
s, _ := FromError(err)
if got, want := s.Code(), codes.Internal; got != want {
t.Fatalf("err.Code() = %s; want %s", got, want)
}
if got, want := s.Message(), "test description"; got != want {
t.Fatalf("err.Message() = %s; want %s", got, want)
}
}
func TestErrorOK(t *testing.T) {
err := Error(codes.OK, "foo")
if err != nil {
t.Fatalf("Error(codes.OK, _) = %p; want nil", err.(*statusError))
}
}
func TestErrorProtoOK(t *testing.T) {
s := &spb.Status{Code: int32(codes.OK)}
if got := ErrorProto(s); got != nil {
t.Fatalf("ErrorProto(%v) = %v; want nil", s, got)
}
}
func TestFromError(t *testing.T) {
code, message := codes.Internal, "test description"
err := Error(code, message)
s, ok := FromError(err)
if !ok || s.Code() != code || s.Message() != message || s.Err() == nil {
t.Fatalf("FromError(%v) = %v, %v; want <Code()=%s, Message()=%q, Err()!=nil>, true", err, s, ok, code, message)
}
}
func TestFromErrorOK(t *testing.T) {
code, message := codes.OK, ""
s, ok := FromError(nil)
if !ok || s.Code() != code || s.Message() != message || s.Err() != nil {
t.Fatalf("FromError(nil) = %v, %v; want <Code()=%s, Message()=%q, Err=nil>, true", s, ok, code, message)
}
}
type customError struct {
Code codes.Code
Message string
Details []*apb.Any
}
func (c customError) Error() string {
return fmt.Sprintf("rpc error: code = %s desc = %s", c.Code, c.Message)
}
func (c customError) GRPCStatus() *Status {
return &Status{
s: &spb.Status{
Code: int32(c.Code),
Message: c.Message,
Details: c.Details,
},
}
}
func TestFromErrorImplementsInterface(t *testing.T) {
code, message := codes.Internal, "test description"
details := []*apb.Any{{
TypeUrl: "testUrl",
Value: []byte("testValue"),
}}
err := customError{
Code: code,
Message: message,
Details: details,
}
s, ok := FromError(err)
if !ok || s.Code() != code || s.Message() != message || s.Err() == nil {
t.Fatalf("FromError(%v) = %v, %v; want <Code()=%s, Message()=%q, Err()!=nil>, true", err, s, ok, code, message)
}
pd := s.Proto().GetDetails()
if len(pd) != 1 || !reflect.DeepEqual(pd[0], details[0]) {
t.Fatalf("s.Proto.GetDetails() = %v; want <Details()=%s>", pd, details)
}
}
func TestFromErrorUnknownError(t *testing.T) {
code, message := codes.Unknown, "unknown error"
err := errors.New("unknown error")
s, ok := FromError(err)
if ok || s.Code() != code || s.Message() != message {
t.Fatalf("FromError(%v) = %v, %v; want <Code()=%s, Message()=%q>, false", err, s, ok, code, message)
}
}
func TestConvertKnownError(t *testing.T) {
code, message := codes.Internal, "test description"
err := Error(code, message)
s := Convert(err)
if s.Code() != code || s.Message() != message {
t.Fatalf("Convert(%v) = %v; want <Code()=%s, Message()=%q>", err, s, code, message)
}
}
func TestConvertUnknownError(t *testing.T) {
code, message := codes.Unknown, "unknown error"
err := errors.New("unknown error")
s := Convert(err)
if s.Code() != code || s.Message() != message {
t.Fatalf("Convert(%v) = %v; want <Code()=%s, Message()=%q>", err, s, code, message)
}
}
func TestStatus_ErrorDetails(t *testing.T) {
tests := []struct {
code codes.Code
details []proto.Message
}{
{
code: codes.NotFound,
details: nil,
},
{
code: codes.NotFound,
details: []proto.Message{
&epb.ResourceInfo{
ResourceType: "book",
ResourceName: "projects/1234/books/5678",
Owner: "User",
},
},
},
{
code: codes.Internal,
details: []proto.Message{
&epb.DebugInfo{
StackEntries: []string{
"first stack",
"second stack",
},
},
},
},
{
code: codes.Unavailable,
details: []proto.Message{
&epb.RetryInfo{
RetryDelay: &dpb.Duration{Seconds: 60},
},
&epb.ResourceInfo{
ResourceType: "book",
ResourceName: "projects/1234/books/5678",
Owner: "User",
},
},
},
}
for _, tc := range tests {
s, err := New(tc.code, "").WithDetails(tc.details...)
if err != nil {
t.Fatalf("(%v).WithDetails(%+v) failed: %v", str(s), tc.details, err)
}
details := s.Details()
for i := range details {
if !proto.Equal(details[i].(proto.Message), tc.details[i]) {
t.Fatalf("(%v).Details()[%d] = %+v, want %+v", str(s), i, details[i], tc.details[i])
}
}
}
}
func TestStatus_WithDetails_Fail(t *testing.T) {
tests := []*Status{
nil,
FromProto(nil),
New(codes.OK, ""),
}
for _, s := range tests {
if s, err := s.WithDetails(); err == nil || s != nil {
t.Fatalf("(%v).WithDetails(%+v) = %v, %v; want nil, non-nil", str(s), []proto.Message{}, s, err)
}
}
}
func TestStatus_ErrorDetails_Fail(t *testing.T) {
tests := []struct {
s *Status
i []interface{}
}{
{
nil,
nil,
},
{
FromProto(nil),
nil,
},
{
New(codes.OK, ""),
[]interface{}{},
},
{
FromProto(&spb.Status{
Code: int32(cpb.Code_CANCELLED),
Details: []*apb.Any{
{
TypeUrl: "",
Value: []byte{},
},
mustMarshalAny(&epb.ResourceInfo{
ResourceType: "book",
ResourceName: "projects/1234/books/5678",
Owner: "User",
}),
},
}),
[]interface{}{
errors.New(`message type url "" is invalid`),
&epb.ResourceInfo{
ResourceType: "book",
ResourceName: "projects/1234/books/5678",
Owner: "User",
},
},
},
}
for _, tc := range tests {
got := tc.s.Details()
if !reflect.DeepEqual(got, tc.i) {
t.Errorf("(%v).Details() = %+v, want %+v", str(tc.s), got, tc.i)
}
}
}
func str(s *Status) string {
if s == nil {
return "nil"
}
if s.s == nil {
return "<Code=OK>"
}
return fmt.Sprintf("<Code=%v, Message=%q, Details=%+v>", codes.Code(s.s.GetCode()), s.s.GetMessage(), s.s.GetDetails())
}
// mustMarshalAny converts a protobuf message to an any.
func mustMarshalAny(msg proto.Message) *apb.Any {
any, err := ptypes.MarshalAny(msg)
if err != nil {
panic(fmt.Sprintf("ptypes.MarshalAny(%+v) failed: %v", msg, err))
}
return any
}