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mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-12 10:04:29 +02:00
opentelemetry-go/metric/noop_test.go
Tyler Yahn c0fb8dec4c
Remove the unneeded Observe method from the async instruments (#3586)
* Update RegisterCallback and Callback decls

RegisterCallback accept variadic Asynchronous instruments instead of a
slice.

Callback accept an observation result recorder to ensure instruments
that are observed by a callback.

* Update global impl

* Update noop impl

* Update SDK impl

* Fix prometheus example

* Fix metric API example_test

* Remove unused registerabler

* Rename ObservationRecorder to MultiObserver

* Update Callback documentation about MultiObserver

* Remove the Observe method from async inst

* Revert to iface for Observers

* Fix async inst docs

* Update global async delegate race test

* Restore removed observe doc

* Remove TODO

* Remove stale comment

* Update changelog
2023-01-25 12:58:09 -08:00

75 lines
2.2 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 metric
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/attribute"
)
func TestNewNoopMeterProvider(t *testing.T) {
mp := NewNoopMeterProvider()
assert.Equal(t, mp, noopMeterProvider{})
meter := mp.Meter("")
assert.Equal(t, meter, noopMeter{})
}
func TestSyncFloat64(t *testing.T) {
meter := NewNoopMeterProvider().Meter("test instrumentation")
assert.NotPanics(t, func() {
inst, err := meter.Float64Counter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), 1.0, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.Float64UpDownCounter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), -1.0, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.Float64Histogram("test instrument")
require.NoError(t, err)
inst.Record(context.Background(), 1.0, attribute.String("key", "value"))
})
}
func TestSyncInt64(t *testing.T) {
meter := NewNoopMeterProvider().Meter("test instrumentation")
assert.NotPanics(t, func() {
inst, err := meter.Int64Counter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), 1, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.Int64UpDownCounter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), -1, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.Int64Histogram("test instrument")
require.NoError(t, err)
inst.Record(context.Background(), 1, attribute.String("key", "value"))
})
}