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opentelemetry-go/sdk/metric/selector/simple/simple_test.go
2020-06-23 10:51:15 -07:00

71 lines
3.1 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 simple_test
import (
"testing"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/api/metric"
export "go.opentelemetry.io/otel/sdk/export/metric"
"go.opentelemetry.io/otel/sdk/metric/aggregator/array"
"go.opentelemetry.io/otel/sdk/metric/aggregator/ddsketch"
"go.opentelemetry.io/otel/sdk/metric/aggregator/histogram"
"go.opentelemetry.io/otel/sdk/metric/aggregator/minmaxsumcount"
"go.opentelemetry.io/otel/sdk/metric/aggregator/sum"
"go.opentelemetry.io/otel/sdk/metric/selector/simple"
)
var (
testCounterDesc = metric.NewDescriptor("counter", metric.CounterKind, metric.Int64NumberKind)
testValueRecorderDesc = metric.NewDescriptor("valuerecorder", metric.ValueRecorderKind, metric.Int64NumberKind)
testValueObserverDesc = metric.NewDescriptor("valueobserver", metric.ValueObserverKind, metric.Int64NumberKind)
)
func oneAgg(sel export.AggregatorSelector, desc *metric.Descriptor) export.Aggregator {
var agg export.Aggregator
sel.AggregatorFor(desc, &agg)
return agg
}
func TestInexpensiveDistribution(t *testing.T) {
inex := simple.NewWithInexpensiveDistribution()
require.NotPanics(t, func() { _ = oneAgg(inex, &testCounterDesc).(*sum.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(inex, &testValueRecorderDesc).(*minmaxsumcount.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(inex, &testValueObserverDesc).(*minmaxsumcount.Aggregator) })
}
func TestSketchDistribution(t *testing.T) {
sk := simple.NewWithSketchDistribution(ddsketch.NewDefaultConfig())
require.NotPanics(t, func() { _ = oneAgg(sk, &testCounterDesc).(*sum.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(sk, &testValueRecorderDesc).(*ddsketch.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(sk, &testValueObserverDesc).(*ddsketch.Aggregator) })
}
func TestExactDistribution(t *testing.T) {
ex := simple.NewWithExactDistribution()
require.NotPanics(t, func() { _ = oneAgg(ex, &testCounterDesc).(*sum.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(ex, &testValueRecorderDesc).(*array.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(ex, &testValueObserverDesc).(*array.Aggregator) })
}
func TestHistogramDistribution(t *testing.T) {
ex := simple.NewWithHistogramDistribution(nil)
require.NotPanics(t, func() { _ = oneAgg(ex, &testCounterDesc).(*sum.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(ex, &testValueRecorderDesc).(*histogram.Aggregator) })
require.NotPanics(t, func() { _ = oneAgg(ex, &testValueObserverDesc).(*histogram.Aggregator) })
}