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trace_test.go
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trace_test.go
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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 otel
import (
"testing"
"github.com/stretchr/testify/assert"
"go.opentelemetry.io/otel/trace"
"go.opentelemetry.io/otel/trace/embedded"
"go.opentelemetry.io/otel/trace/noop"
)
type testTracerProvider struct{ embedded.TracerProvider }
var _ trace.TracerProvider = &testTracerProvider{}
func (*testTracerProvider) Tracer(_ string, _ ...trace.TracerOption) trace.Tracer {
return noop.NewTracerProvider().Tracer("")
}
func TestMultipleGlobalTracerProvider(t *testing.T) {
p1 := testTracerProvider{}
p2 := noop.NewTracerProvider()
SetTracerProvider(&p1)
SetTracerProvider(p2)
got := GetTracerProvider()
assert.Equal(t, p2, got)
}