blob: 9ad93b714a97cf5c0a15bfcd0ed099a98d3f7145 [file] [log] [blame]
// Copyright 2018, OpenCensus 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 propagation
import (
"net/http"
"reflect"
"testing"
"go.opencensus.io/trace"
)
func TestHTTPFormat(t *testing.T) {
format := &HTTPFormat{}
traceID := [16]byte{16, 84, 69, 170, 120, 67, 188, 139, 242, 6, 177, 32, 0, 16, 0, 0}
spanID1 := [8]byte{255, 0, 0, 0, 0, 0, 0, 123}
spanID2 := [8]byte{0, 0, 0, 0, 0, 0, 0, 123}
tests := []struct {
incoming string
wantSpanContext trace.SpanContext
}{
{
incoming: "105445aa7843bc8bf206b12000100000/18374686479671623803;o=1",
wantSpanContext: trace.SpanContext{
TraceID: traceID,
SpanID: spanID1,
TraceOptions: 1,
},
},
{
incoming: "105445aa7843bc8bf206b12000100000/123;o=0",
wantSpanContext: trace.SpanContext{
TraceID: traceID,
SpanID: spanID2,
TraceOptions: 0,
},
},
}
for _, tt := range tests {
t.Run(tt.incoming, func(t *testing.T) {
req, _ := http.NewRequest("GET", "http://example.com", nil)
req.Header.Add(httpHeader, tt.incoming)
sc, ok := format.SpanContextFromRequest(req)
if !ok {
t.Errorf("exporter.SpanContextFromRequest() = false; want true")
}
if got, want := sc, tt.wantSpanContext; !reflect.DeepEqual(got, want) {
t.Errorf("exporter.SpanContextFromRequest() returned span context %v; want %v", got, want)
}
req, _ = http.NewRequest("GET", "http://example.com", nil)
format.SpanContextToRequest(sc, req)
if got, want := req.Header.Get(httpHeader), tt.incoming; got != want {
t.Errorf("exporter.SpanContextToRequest() returned header %q; want %q", got, want)
}
})
}
}