1// Copyright 2017 Google LLC
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//      http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package internal
16
17import (
18	"errors"
19	"testing"
20
21	"google.golang.org/api/googleapi"
22	"google.golang.org/grpc/codes"
23	"google.golang.org/grpc/status"
24)
25
26const wantMessage = "prefix: msg"
27
28func TestAnnotateGRPC(t *testing.T) {
29	// grpc Status error
30	err := status.Error(codes.NotFound, "msg")
31	err = Annotate(err, "prefix")
32	got, ok := status.FromError(err)
33	if !ok {
34		t.Fatalf("got %T, wanted a status", got)
35	}
36	if g, w := got.Code(), codes.NotFound; g != w {
37		t.Errorf("got code %v, want %v", g, w)
38	}
39	if g, w := got.Message(), wantMessage; g != w {
40		t.Errorf("got message %q, want %q", g, w)
41	}
42}
43
44func TestAnnotateGoogleapi(t *testing.T) {
45	// googleapi error
46	var err error = &googleapi.Error{Code: 403, Message: "msg"}
47	err = Annotate(err, "prefix")
48	got2, ok := err.(*googleapi.Error)
49	if !ok {
50		t.Fatalf("got %T, wanted a googleapi.Error", got2)
51	}
52	if g, w := got2.Code, 403; g != w {
53		t.Errorf("got code %d, want %d", g, w)
54	}
55	if g, w := got2.Message, wantMessage; g != w {
56		t.Errorf("got message %q, want %q", g, w)
57	}
58}
59
60func TestAnnotateUnknownError(t *testing.T) {
61	err := Annotate(errors.New("msg"), "prefix")
62	if g, w := err.Error(), wantMessage; g != w {
63		t.Errorf("got message %q, want %q", g, w)
64	}
65}
66