1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package rpc
import (
"context"
"encoding/json"
"net"
"reflect"
"testing"
"time"
)
type Service struct{}
type Args struct {
S string
}
func (s *Service) NoArgsRets() {
}
type Result struct {
String string
Int int
Args *Args
}
func (s *Service) Echo(str string, i int, args *Args) Result {
return Result{str, i, args}
}
func (s *Service) EchoWithCtx(ctx context.Context, str string, i int, args *Args) Result {
return Result{str, i, args}
}
func (s *Service) Sleep(ctx context.Context, duration time.Duration) {
select {
case <-time.After(duration):
case <-ctx.Done():
}
}
func (s *Service) Rets() (string, error) {
return "", nil
}
func (s *Service) InvalidRets1() (error, string) {
return nil, ""
}
func (s *Service) InvalidRets2() (string, string) {
return "", ""
}
func (s *Service) InvalidRets3() (string, string, error) {
return "", "", nil
}
func (s *Service) Subscription(ctx context.Context) (*Subscription, error) {
return nil, nil
}
func TestServerRegisterName(t *testing.T) {
server := NewServer()
service := new(Service)
if err := server.RegisterName("calc", service); err != nil {
t.Fatalf("%v", err)
}
if len(server.services) != 2 {
t.Fatalf("Expected 2 service entries, got %d", len(server.services))
}
svc, ok := server.services["calc"]
if !ok {
t.Fatalf("Expected service calc to be registered")
}
if len(svc.callbacks) != 5 {
t.Errorf("Expected 5 callbacks for service 'calc', got %d", len(svc.callbacks))
}
if len(svc.subscriptions) != 1 {
t.Errorf("Expected 1 subscription for service 'calc', got %d", len(svc.subscriptions))
}
}
func testServerMethodExecution(t *testing.T, method string) {
server := NewServer()
service := new(Service)
if err := server.RegisterName("test", service); err != nil {
t.Fatalf("%v", err)
}
stringArg := "string arg"
intArg := 1122
argsArg := &Args{"abcde"}
params := []interface{}{stringArg, intArg, argsArg}
request := map[string]interface{}{
"id": 12345,
"method": "test_" + method,
"version": "2.0",
"params": params,
}
clientConn, serverConn := net.Pipe()
defer clientConn.Close()
go server.ServeCodec(NewJSONCodec(serverConn), OptionMethodInvocation)
out := json.NewEncoder(clientConn)
in := json.NewDecoder(clientConn)
if err := out.Encode(request); err != nil {
t.Fatal(err)
}
response := jsonSuccessResponse{Result: &Result{}}
if err := in.Decode(&response); err != nil {
t.Fatal(err)
}
if result, ok := response.Result.(*Result); ok {
if result.String != stringArg {
t.Errorf("expected %s, got : %s\n", stringArg, result.String)
}
if result.Int != intArg {
t.Errorf("expected %d, got %d\n", intArg, result.Int)
}
if !reflect.DeepEqual(result.Args, argsArg) {
t.Errorf("expected %v, got %v\n", argsArg, result)
}
} else {
t.Fatalf("invalid response: expected *Result - got: %T", response.Result)
}
}
func TestServerMethodExecution(t *testing.T) {
testServerMethodExecution(t, "echo")
}
func TestServerMethodWithCtx(t *testing.T) {
testServerMethodExecution(t, "echoWithCtx")
}