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
|
package nethttp
import (
"net/http"
"net/http/httptest"
"testing"
"github.com/opentracing/opentracing-go/mocktracer"
)
func TestOperationNameOption(t *testing.T) {
mux := http.NewServeMux()
mux.HandleFunc("/root", func(w http.ResponseWriter, r *http.Request) {})
fn := func(r *http.Request) string {
return "HTTP " + r.Method + ": /root"
}
tests := []struct {
options []MWOption
opName string
}{
{nil, "HTTP GET"},
{[]MWOption{OperationNameFunc(fn)}, "HTTP GET: /root"},
}
for _, tt := range tests {
testCase := tt
t.Run(testCase.opName, func(t *testing.T) {
tr := &mocktracer.MockTracer{}
mw := Middleware(tr, mux, testCase.options...)
srv := httptest.NewServer(mw)
defer srv.Close()
_, err := http.Get(srv.URL)
if err != nil {
t.Fatalf("server returned error: %v", err)
}
spans := tr.FinishedSpans()
if got, want := len(spans), 1; got != want {
t.Fatalf("got %d spans, expected %d", got, want)
}
if got, want := spans[0].OperationName, testCase.opName; got != want {
t.Fatalf("got %s operation name, expected %s", got, want)
}
})
}
}
|
