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// Copyright The OpenTelemetry 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 (
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestContextWithList(t *testing.T) {
ctx := context.Background()
l := List{"foo": {Value: "1"}}
nCtx := ContextWithList(ctx, l)
assert.Equal(t, baggageState{list: l}, nCtx.Value(baggageKey))
assert.Nil(t, ctx.Value(baggageKey))
}
func TestClearContextOfList(t *testing.T) {
l := List{"foo": {Value: "1"}}
ctx := context.Background()
ctx = context.WithValue(ctx, baggageKey, l)
nCtx := ContextWithList(ctx, nil)
nL, ok := nCtx.Value(baggageKey).(baggageState)
require.True(t, ok, "wrong type stored in context")
assert.Nil(t, nL.list)
assert.Equal(t, l, ctx.Value(baggageKey))
}
func TestListFromContext(t *testing.T) {
ctx := context.Background()
assert.Nil(t, ListFromContext(ctx))
l := List{"foo": {Value: "1"}}
ctx = context.WithValue(ctx, baggageKey, baggageState{list: l})
assert.Equal(t, l, ListFromContext(ctx))
}
func TestContextWithSetHook(t *testing.T) {
var called bool
f := func(ctx context.Context, list List) context.Context {
called = true
return ctx
}
ctx := context.Background()
ctx = ContextWithSetHook(ctx, f)
assert.False(t, called, "SetHookFunc called when setting hook")
ctx = ContextWithList(ctx, nil)
assert.True(t, called, "SetHookFunc not called when setting List")
// Ensure resetting the hook works.
called = false
ctx = ContextWithSetHook(ctx, f)
assert.False(t, called, "SetHookFunc called when re-setting hook")
ContextWithList(ctx, nil)
assert.True(t, called, "SetHookFunc not called when re-setting List")
}
func TestContextWithGetHook(t *testing.T) {
var called bool
f := func(ctx context.Context, list List) List {
called = true
return list
}
ctx := context.Background()
ctx = ContextWithGetHook(ctx, f)
assert.False(t, called, "GetHookFunc called when setting hook")
_ = ListFromContext(ctx)
assert.True(t, called, "GetHookFunc not called when getting List")
// Ensure resetting the hook works.
called = false
ctx = ContextWithGetHook(ctx, f)
assert.False(t, called, "GetHookFunc called when re-setting hook")
_ = ListFromContext(ctx)
assert.True(t, called, "GetHookFunc not called when re-getting List")
}
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