forked from grpc/grpc-go
/
clientconn_parsed_target_test.go
200 lines (184 loc) · 8.93 KB
/
clientconn_parsed_target_test.go
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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
/*
*
* Copyright 2021 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 grpc
import (
"context"
"errors"
"net"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"google.golang.org/grpc/resolver"
)
func (s) TestParsedTarget_Success_WithoutCustomDialer(t *testing.T) {
defScheme := resolver.GetDefaultScheme()
tests := []struct {
target string
wantParsed resolver.Target
}{
// No scheme is specified.
{target: "", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: ""}},
{target: "://", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://"}},
{target: ":///", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: ":///"}},
{target: "://a/", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://a/"}},
{target: ":///a", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: ":///a"}},
{target: "://a/b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://a/b"}},
{target: "/", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "/"}},
{target: "a/b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a/b"}},
{target: "a//b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a//b"}},
{target: "google.com", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "google.com"}},
{target: "google.com/?a=b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "google.com/"}},
{target: "/unix/socket/address", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "/unix/socket/address"}},
// An unregistered scheme is specified.
{target: "a:///", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:///"}},
{target: "a://b/", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a://b/"}},
{target: "a:///b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:///b"}},
{target: "a://b/c", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a://b/c"}},
{target: "a:b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:b"}},
{target: "a:/b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a:/b"}},
{target: "a://b", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "a://b"}},
// A registered scheme is specified.
{target: "dns:///google.com", wantParsed: resolver.Target{Scheme: "dns", Authority: "", Endpoint: "google.com"}},
{target: "dns://a.server.com/google.com", wantParsed: resolver.Target{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com"}},
{target: "dns://a.server.com/google.com/?a=b", wantParsed: resolver.Target{Scheme: "dns", Authority: "a.server.com", Endpoint: "google.com/"}},
{target: "unix:///a/b/c", wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c"}},
{target: "unix-abstract:a/b/c", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a/b/c"}},
{target: "unix-abstract:a b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a b"}},
{target: "unix-abstract:a:b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a:b"}},
{target: "unix-abstract:a-b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a-b"}},
{target: "unix-abstract:/ a///://::!@#$%25^&*()b", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: " a///://::!@"}},
{target: "unix-abstract:passthrough:abc", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "passthrough:abc"}},
{target: "unix-abstract:unix:///abc", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "unix:///abc"}},
{target: "unix-abstract:///a/b/c", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: "a/b/c"}},
{target: "unix-abstract:///", wantParsed: resolver.Target{Scheme: "unix-abstract", Authority: "", Endpoint: ""}},
{target: "passthrough:///unix:///a/b/c", wantParsed: resolver.Target{Scheme: "passthrough", Authority: "", Endpoint: "unix:///a/b/c"}},
// Cases for `scheme:absolute-path`.
{target: "dns:/a/b/c", wantParsed: resolver.Target{Scheme: "dns", Authority: "", Endpoint: "a/b/c"}},
{target: "unregistered:/a/b/c", wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "unregistered:/a/b/c"}},
}
for _, test := range tests {
t.Run(test.target, func(t *testing.T) {
cc, err := Dial(test.target, WithInsecure())
if err != nil {
t.Fatalf("Dial(%q) failed: %v", test.target, err)
}
defer cc.Close()
if !cmp.Equal(cc.parsedTarget, test.wantParsed, cmpopts.IgnoreFields(resolver.Target{}, "ParsedURL")) {
t.Errorf("cc.parsedTarget for dial target %q = %+v, want %+v", test.target, cc.parsedTarget, test.wantParsed)
}
})
}
}
func (s) TestParsedTarget_Failure_WithoutCustomDialer(t *testing.T) {
targets := []string{
"unix://a/b/c",
"unix://authority",
"unix-abstract://authority/a/b/c",
"unix-abstract://authority",
}
for _, target := range targets {
t.Run(target, func(t *testing.T) {
if cc, err := Dial(target, WithInsecure()); err == nil {
defer cc.Close()
t.Fatalf("Dial(%q) succeeded cc.parsedTarget = %+v, expected to fail", target, cc.parsedTarget)
}
})
}
}
func (s) TestParsedTarget_WithCustomDialer(t *testing.T) {
defScheme := resolver.GetDefaultScheme()
tests := []struct {
target string
wantParsed resolver.Target
wantDialerAddress string
}{
// unix:[local_path], unix:[/absolute], and unix://[/absolute] have
// different behaviors with a custom dialer.
{
target: "unix:a/b/c",
wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c"},
wantDialerAddress: "unix:a/b/c",
},
{
target: "unix:/a/b/c",
wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c"},
wantDialerAddress: "unix:///a/b/c",
},
{
target: "unix:///a/b/c",
wantParsed: resolver.Target{Scheme: "unix", Authority: "", Endpoint: "a/b/c"},
wantDialerAddress: "unix:///a/b/c",
},
{
target: "dns:///127.0.0.1:50051",
wantParsed: resolver.Target{Scheme: "dns", Authority: "", Endpoint: "127.0.0.1:50051"},
wantDialerAddress: "127.0.0.1:50051",
},
{
target: ":///127.0.0.1:50051",
wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: ":///127.0.0.1:50051"},
wantDialerAddress: ":///127.0.0.1:50051",
},
{
target: "dns://authority/127.0.0.1:50051",
wantParsed: resolver.Target{Scheme: "dns", Authority: "authority", Endpoint: "127.0.0.1:50051"},
wantDialerAddress: "127.0.0.1:50051",
},
{
target: "://authority/127.0.0.1:50051",
wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "://authority/127.0.0.1:50051"},
wantDialerAddress: "://authority/127.0.0.1:50051",
},
{
target: "/unix/socket/address",
wantParsed: resolver.Target{Scheme: defScheme, Authority: "", Endpoint: "/unix/socket/address"},
wantDialerAddress: "/unix/socket/address",
},
{
target: "passthrough://a.server.com/google.com",
wantParsed: resolver.Target{Scheme: "passthrough", Authority: "a.server.com", Endpoint: "google.com"},
wantDialerAddress: "google.com",
},
}
for _, test := range tests {
t.Run(test.target, func(t *testing.T) {
addrCh := make(chan string, 1)
dialer := func(ctx context.Context, address string) (net.Conn, error) {
addrCh <- address
return nil, errors.New("dialer error")
}
cc, err := Dial(test.target, WithInsecure(), WithContextDialer(dialer))
if err != nil {
t.Fatalf("Dial(%q) failed: %v", test.target, err)
}
defer cc.Close()
select {
case addr := <-addrCh:
if addr != test.wantDialerAddress {
t.Fatalf("address in custom dialer is %q, want %q", addr, test.wantDialerAddress)
}
case <-time.After(time.Second):
t.Fatal("timeout when waiting for custom dialer to be invoked")
}
if !cmp.Equal(cc.parsedTarget, test.wantParsed, cmpopts.IgnoreFields(resolver.Target{}, "ParsedURL")) {
t.Errorf("cc.parsedTarget for dial target %q = %+v, want %+v", test.target, cc.parsedTarget, test.wantParsed)
}
})
}
}