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
|
package tracing
import (
"context"
"errors"
"net/http"
"net/http/httptest"
"strings"
"testing"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
)
func TestTracing_UnmarshalCaddyfile(t *testing.T) {
tests := []struct {
name string
spanName string
d *caddyfile.Dispenser
wantErr bool
}{
{
name: "Full config",
spanName: "my-span",
d: caddyfile.NewTestDispenser(`
tracing {
span my-span
}`),
wantErr: false,
},
{
name: "Only span name in the config",
spanName: "my-span",
d: caddyfile.NewTestDispenser(`
tracing {
span my-span
}`),
wantErr: false,
},
{
name: "Empty config",
d: caddyfile.NewTestDispenser(`
tracing {
}`),
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ot := &Tracing{}
if err := ot.UnmarshalCaddyfile(tt.d); (err != nil) != tt.wantErr {
t.Errorf("UnmarshalCaddyfile() error = %v, wantErrType %v", err, tt.wantErr)
}
if ot.SpanName != tt.spanName {
t.Errorf("UnmarshalCaddyfile() SpanName = %v, want SpanName %v", ot.SpanName, tt.spanName)
}
})
}
}
func TestTracing_UnmarshalCaddyfile_Error(t *testing.T) {
tests := []struct {
name string
d *caddyfile.Dispenser
wantErr bool
}{
{
name: "Unknown parameter",
d: caddyfile.NewTestDispenser(`
tracing {
foo bar
}`),
wantErr: true,
},
{
name: "Missed argument",
d: caddyfile.NewTestDispenser(`
tracing {
span
}`),
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ot := &Tracing{}
if err := ot.UnmarshalCaddyfile(tt.d); (err != nil) != tt.wantErr {
t.Errorf("UnmarshalCaddyfile() error = %v, wantErrType %v", err, tt.wantErr)
}
})
}
}
func TestTracing_ServeHTTP_Propagation_Without_Initial_Headers(t *testing.T) {
ot := &Tracing{
SpanName: "mySpan",
}
req := createRequestWithContext("GET", "https://example.com/foo")
w := httptest.NewRecorder()
var handler caddyhttp.HandlerFunc = func(writer http.ResponseWriter, request *http.Request) error {
traceparent := request.Header.Get("Traceparent")
if traceparent == "" || strings.HasPrefix(traceparent, "00-00000000000000000000000000000000-0000000000000000") {
t.Errorf("Invalid traceparent: %v", traceparent)
}
return nil
}
ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
defer cancel()
if err := ot.Provision(ctx); err != nil {
t.Errorf("Provision error: %v", err)
t.FailNow()
}
if err := ot.ServeHTTP(w, req, handler); err != nil {
t.Errorf("ServeHTTP error: %v", err)
}
}
func TestTracing_ServeHTTP_Propagation_With_Initial_Headers(t *testing.T) {
ot := &Tracing{
SpanName: "mySpan",
}
req := createRequestWithContext("GET", "https://example.com/foo")
req.Header.Set("traceparent", "00-11111111111111111111111111111111-1111111111111111-01")
w := httptest.NewRecorder()
var handler caddyhttp.HandlerFunc = func(writer http.ResponseWriter, request *http.Request) error {
traceparent := request.Header.Get("Traceparent")
if !strings.HasPrefix(traceparent, "00-11111111111111111111111111111111") {
t.Errorf("Invalid traceparent: %v", traceparent)
}
return nil
}
ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
defer cancel()
if err := ot.Provision(ctx); err != nil {
t.Errorf("Provision error: %v", err)
t.FailNow()
}
if err := ot.ServeHTTP(w, req, handler); err != nil {
t.Errorf("ServeHTTP error: %v", err)
}
}
func TestTracing_ServeHTTP_Next_Error(t *testing.T) {
ot := &Tracing{
SpanName: "mySpan",
}
req := createRequestWithContext("GET", "https://example.com/foo")
w := httptest.NewRecorder()
expectErr := errors.New("test error")
var handler caddyhttp.HandlerFunc = func(writer http.ResponseWriter, request *http.Request) error {
return expectErr
}
ctx, cancel := caddy.NewContext(caddy.Context{Context: context.Background()})
defer cancel()
if err := ot.Provision(ctx); err != nil {
t.Errorf("Provision error: %v", err)
t.FailNow()
}
if err := ot.ServeHTTP(w, req, handler); err == nil || !errors.Is(err, expectErr) {
t.Errorf("expected error, got: %v", err)
}
}
func createRequestWithContext(method string, url string) *http.Request {
r, _ := http.NewRequest(method, url, nil)
repl := caddy.NewReplacer()
ctx := context.WithValue(r.Context(), caddy.ReplacerCtxKey, repl)
r = r.WithContext(ctx)
return r
}
|
