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mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-11-24 08:22:25 +02:00
opentelemetry-go/trace_test.go
Krzesimir Nowak 3d6e8b5078
Move Version function and code from global to toplevel (#1330)
* Move global code to toplevel package

* Move version function to toplevel package

* Update changelog

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2020-11-16 09:30:54 -08:00

44 lines
1.2 KiB
Go

// 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"
"go.opentelemetry.io/otel/internal/trace/noop"
"go.opentelemetry.io/otel/trace"
)
type testTracerProvider struct{}
var _ trace.TracerProvider = &testTracerProvider{}
func (*testTracerProvider) Tracer(_ string, _ ...trace.TracerOption) trace.Tracer {
return noop.Tracer
}
func TestMultipleGlobalTracerProvider(t *testing.T) {
p1 := testTracerProvider{}
p2 := trace.NewNoopTracerProvider()
SetTracerProvider(&p1)
SetTracerProvider(p2)
got := GetTracerProvider()
want := p2
if got != want {
t.Fatalf("TracerProvider: got %p, want %p\n", got, want)
}
}