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opentelemetry-go/api/global/metric_test.go
Tyler Yahn 818c7b14b3
Move metric api package into otel (#1252)
* Update metric Kind to InstrumentKind

* Update all the other modules with Kind rename

* Update metric Descriptor with instrument Kind rename

* Update other modules with Descriptor method rename

* Update OTLP exporter test field name

* Rename kind filenames

* Add changes to CHANGELOG

* Fix documentation for Grouping and PrecomputedSum

* Rename meter.go to metric.go

* Move descriptor.go into metric.go

* Move must.go into metric.go

* Move instruments into metric_instrument.go

* Rename metric api_test.go to metric_test.go

* Move instrumentkind_test.go into metric_test.go

* Rename sdkapi.go metric_sdkapi.go

* Move api/metric into otel

* Update to use moved packages

* Rename otel.go to error_handler.go

* Add changes to CHANGELOG

* Fix merge conflict resolution error
2020-10-17 09:48:21 -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 global_test
import (
"testing"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/api/global"
)
type testMeterProvider struct{}
var _ otel.MeterProvider = &testMeterProvider{}
func (*testMeterProvider) Meter(_ string, _ ...otel.MeterOption) otel.Meter {
return otel.Meter{}
}
func TestMultipleGlobalMeterProvider(t *testing.T) {
p1 := testMeterProvider{}
p2 := otel.NoopMeterProvider{}
global.SetMeterProvider(&p1)
global.SetMeterProvider(&p2)
got := global.MeterProvider()
want := &p2
if got != want {
t.Fatalf("MeterProvider: got %p, want %p\n", got, want)
}
}