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// Copyright 2022 The OpenZipkin 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 baggage
import (
"strings"
"testing"
)
func TestBaggageRegistry(t *testing.T) {
baggageHandler := New("X-Request-Id", "some-header", "x-request-id")
var items int
baggageHandler.(*baggage).IterateKeys(func(key string) {
if key != "some-header" && key != "x-request-id" {
t.Errorf("Unexpected registry item: %s", key)
}
items++
})
if items != 2 {
t.Errorf("Unexpected registration count: want %d, have %d", 2, items)
}
}
func TestBaggageValues(t *testing.T) {
// register the baggage fields we'll propagate
baggageHandler := New("X-Request-Id", "Some-Header")
// initialize fresh BaggageFields container
baggage := baggageHandler.New()
t.Run("AddHeader", func(t *testing.T) {
if baggage.Add("Invalid-Key", "Invalid-Key-Value") {
t.Errorf("expected Invalid-Key to return false")
}
if !baggage.Add("X-Request-Id", "X-Request-Id-Value") {
t.Errorf("expected X-Request-Id to return true")
}
if !baggage.Add("Some-Header", "Some-Header-Value1", "Some-Header-Value2") {
t.Errorf("expected Some-Header to return true")
}
if !baggage.Add("Some-Header", "Some-Header-Value3") {
t.Errorf("expected Some-Header to return true")
}
})
baggageHandler.New().Iterate(func(key string, values []string) {
t.Errorf("expected no header data to exist, have: key=%s values=%v", key, values)
})
t.Run("IterateHeaders", func(t *testing.T) {
baggage.Iterate(func(key string, have []string) {
if strings.EqualFold(key, "x-request-id") {
want := 1
if len(have) != want {
t.Errorf("expected different value count: want %d, have %d", want, len(have))
}
if have[0] != "X-Request-Id-Value" {
t.Errorf("expected different value: want %s, have %s", "X-Request-Id-Value", have[0])
}
return
}
if strings.EqualFold(key, "some-header") {
want := 3
if len(have) != want {
t.Errorf("expected different value count: want %d, have %d", want, len(have))
}
wantVal := "Some-Header-Value1"
if have[0] != wantVal {
t.Errorf("expected different value: want %s, have %s", wantVal, have[0])
}
wantVal = "Some-Header-Value2"
if have[1] != wantVal {
t.Errorf("expected different value: want %s, have %s", wantVal, have[1])
}
wantVal = "Some-Header-Value3"
if have[2] != wantVal {
t.Errorf("expected different value: want %s, have %s", wantVal, have[2])
}
return
}
t.Errorf("unexpected header key: %s", key)
})
})
t.Run("DeleteHeader", func(t *testing.T) {
if baggage.Delete("Invalid-Key") {
t.Errorf("expected Invalid-Key to return false")
}
if !baggage.Delete("some-header") {
t.Errorf("expected some-header to return true")
}
baggage.Iterate(func(key string, have []string) {
if strings.EqualFold(key, "x-request-id") {
want := 1
if len(have) != want {
t.Errorf("expected different value count: want %d, have %d", want, len(have))
}
if have[0] != "X-Request-Id-Value" {
t.Errorf("expected different value: want %s, have %s", "X-Request-Id-Value", have[0])
}
return
}
t.Errorf("unexpected header key: %s", key)
})
})
}
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