/
testping.go
158 lines (143 loc) · 3.96 KB
/
testping.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
package testservice
import (
"context"
"io"
"reflect"
"testing"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
)
const (
returnHeader = "test-client-header"
)
// TestTestServiceServerImpl can be called to test the underlying TestServiceServer.
func TestTestServiceServerImpl(t *testing.T, client TestServiceClient) {
t.Run("Unary ping", func(t *testing.T) {
want := "hello, world"
hdr := metadata.MD{}
res, err := client.Ping(context.TODO(), &PingRequest{Value: want}, grpc.Header(&hdr))
if err != nil {
t.Errorf("want no err; got %v", err)
return
}
checkHeaders(t, hdr)
t.Logf("got %v (%d)", res.Value, res.Counter)
if got := res.Value; got != want {
t.Errorf("res.Value = %q; want %q", got, want)
}
})
t.Run("Error ping", func(t *testing.T) {
_, err := client.PingError(context.TODO(), &PingRequest{})
if err == nil {
t.Errorf("want err; got %v", err)
}
})
t.Run("Server streaming ping", func(t *testing.T) {
want := "hello, world"
stream, err := client.PingList(context.TODO(), &PingRequest{Value: want})
if err != nil {
t.Errorf("want no err; got %v", err)
if err := stream.CloseSend(); err != nil {
t.Fatalf("closing send channel: %v", err)
}
return
}
hdr, err := stream.Header()
if err != nil {
t.Errorf("reading headers: %v", err)
}
checkHeaders(t, hdr)
for {
res, err := stream.Recv()
if err != nil {
if err == io.EOF {
checkTrailers(t, stream.Trailer())
return
}
t.Errorf("want no err; got %v", err)
return
}
t.Logf("got %v (%d)", res.Value, res.Counter)
if got := res.Value; got != want {
t.Errorf("res.Value = %q; want %q", got, want)
}
}
})
t.Run("Bidirectional pinging", func(t *testing.T) {
want := "hello, world"
stream, err := client.PingStream(context.TODO())
if err != nil {
t.Errorf("want no err; got %v", err)
if err := stream.CloseSend(); err != nil {
t.Fatalf("closing send channel: %v", err)
}
return
}
d := make(chan struct{})
go func() {
hdr, err := stream.Header()
if err != nil {
t.Errorf("reading headers: %v", err)
}
checkHeaders(t, hdr)
close(d)
}()
for i := 0; i < 25; i++ {
if err := stream.Send(&PingRequest{Value: want}); err != nil {
t.Errorf("want no err; got %v", err)
return
}
res, err := stream.Recv()
if err != nil {
t.Errorf("receiving full duplex stream: %w", err)
return
}
t.Logf("got %v (%d)", res.Value, res.Counter)
if got := res.Value; got != want {
t.Errorf("res.Value = %q; want %q", got, want)
}
if got, want := res.Counter, int32(i); got != want {
t.Errorf("res.Counter = %d; want %d", got, want)
}
}
if err := stream.CloseSend(); err != nil {
t.Errorf("closing full duplex stream: %v", err)
}
<-d
})
t.Run("Unary ping with headers", func(t *testing.T) {
want := "hello, world"
req := &PingRequest{Value: want}
ctx := metadata.AppendToOutgoingContext(context.Background(), returnHeader, "I like turtles.")
inHeader := make(metadata.MD)
res, err := client.Ping(ctx, req, grpc.Header(&inHeader))
if err != nil {
t.Errorf("want no err; got %v", err)
return
}
t.Logf("got %v (%d)", res.Value, res.Counter)
if !reflect.DeepEqual(inHeader.Get(returnHeader), []string{"I like turtles."}) {
t.Errorf("did not receive correct return headers")
}
})
}
func checkTrailers(t *testing.T, md metadata.MD) {
vs := md.Get(PingTrailer)
if want, got := 1, len(vs); want != got {
t.Errorf("trailer %q not present", PingTrailer)
return
}
if want, got := []string{PingTrailerCts}, vs; !reflect.DeepEqual(got, want) {
t.Errorf("trailer mismatch; want %q, got %q", want, got)
}
}
func checkHeaders(t *testing.T, md metadata.MD) {
vs := md.Get(PingHeader)
if want, got := 1, len(vs); want != got {
t.Errorf("header %q not present", PingHeader)
return
}
if want, got := []string{PingHeaderCts}, vs; !reflect.DeepEqual(got, want) {
t.Errorf("header mismatch; want %q, got %q", want, got)
}
}