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opentelemetry-go/metric/global/metric_test.go
Tyler Yahn 8dba38e02f
Move global metric back to otel/metric/global for minor release (#3986)
* Revert "Remove the deprecated `otel/metric/global` pkg (#3829)"

This reverts commit 60f7d42d1eedae6381f1d6524374b57a274e1639.

* Revert "Support a global MeterProvider in `go.opentelemetry.io/otel` (#3818)"

This reverts commit 813936187e46d48924b717ed9f63767eef26f55a.

* Remove top level metric global

* Add change to changelog
2023-04-13 07:39:39 -07:00

44 lines
1.3 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 global // import "go.opentelemetry.io/otel/metric/global"
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 := MeterProvider()
assert.Equal(t, p2, got)
}