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opentelemetry-go/metric_test.go
Tyler Yahn 17903bcdb6
Revert "Move global metric back to otel/metric/global for minor release (#3986)" (#4039)
* Revert "Move global metric back to `otel/metric/global` for minor release (#3986)"

This reverts commit 8dba38e02f.

* Add changes to changelog

* Fix versions and go mod tidy

* Run go-mod-tidy
2023-05-02 11:15:39 -07:00

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 "go.opentelemetry.io/otel"
import (
"testing"
"github.com/stretchr/testify/assert"
"go.opentelemetry.io/otel/metric"
"go.opentelemetry.io/otel/metric/embedded"
"go.opentelemetry.io/otel/metric/noop"
)
type testMeterProvider struct{ embedded.MeterProvider }
var _ metric.MeterProvider = &testMeterProvider{}
func (*testMeterProvider) Meter(_ string, _ ...metric.MeterOption) metric.Meter {
return noop.NewMeterProvider().Meter("")
}
func TestMultipleGlobalMeterProvider(t *testing.T) {
p1 := testMeterProvider{}
p2 := noop.NewMeterProvider()
SetMeterProvider(&p1)
SetMeterProvider(p2)
got := GetMeterProvider()
assert.Equal(t, p2, got)
}