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opentelemetry-go/metric/noop_test.go
Bogdan Drutu a9a519277a
Move metric no-op implementation to metric package (#2866)
* Move metric no-op implementation to metric package

This is to be consistent with trace package.

Fixes: https://github.com/open-telemetry/opentelemetry-go/issues/2767

Signed-off-by: Bogdan Drutu <bogdandrutu@gmail.com>

* Update CHANGELOG.md

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>

* Update metric/noop.go

Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>

* Update noop.go

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
Co-authored-by: Chester Cheung <cheung.zhy.csu@gmail.com>
2022-04-28 12:52:10 -07:00

117 lines
3.6 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.SyncFloat64().Counter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), 1.0, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.SyncFloat64().UpDownCounter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), -1.0, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.SyncFloat64().Histogram("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.SyncInt64().Counter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), 1, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.SyncInt64().UpDownCounter("test instrument")
require.NoError(t, err)
inst.Add(context.Background(), -1, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.SyncInt64().Histogram("test instrument")
require.NoError(t, err)
inst.Record(context.Background(), 1, attribute.String("key", "value"))
})
}
func TestAsyncFloat64(t *testing.T) {
meter := NewNoopMeterProvider().Meter("test instrumentation")
assert.NotPanics(t, func() {
inst, err := meter.AsyncFloat64().Counter("test instrument")
require.NoError(t, err)
inst.Observe(context.Background(), 1.0, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.AsyncFloat64().UpDownCounter("test instrument")
require.NoError(t, err)
inst.Observe(context.Background(), -1.0, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.AsyncFloat64().Gauge("test instrument")
require.NoError(t, err)
inst.Observe(context.Background(), 1.0, attribute.String("key", "value"))
})
}
func TestAsyncInt64(t *testing.T) {
meter := NewNoopMeterProvider().Meter("test instrumentation")
assert.NotPanics(t, func() {
inst, err := meter.AsyncInt64().Counter("test instrument")
require.NoError(t, err)
inst.Observe(context.Background(), 1, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.AsyncInt64().UpDownCounter("test instrument")
require.NoError(t, err)
inst.Observe(context.Background(), -1, attribute.String("key", "value"))
})
assert.NotPanics(t, func() {
inst, err := meter.AsyncInt64().Gauge("test instrument")
require.NoError(t, err)
inst.Observe(context.Background(), 1, attribute.String("key", "value"))
})
}