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opentelemetry-go/sdk/export/metric/exportkind_test.go
Krzesimir Nowak 386331a472
Prepare to move metrics code to separate subpackage (#1316)
* Move registry package under metric

* Move Number type to the metric/number subpackage

This also renames NumberKind type to Kind.

* Update changelog

* Drop outdated comment
2020-11-11 07:24:12 -08:00

75 lines
2.3 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 metric
import (
"testing"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/metric/number"
"go.opentelemetry.io/otel/sdk/export/metric/aggregation"
)
func TestExportKindIncludes(t *testing.T) {
require.True(t, CumulativeExportKind.Includes(CumulativeExportKind))
require.True(t, DeltaExportKind.Includes(CumulativeExportKind|DeltaExportKind))
}
var deltaMemoryKinds = []otel.InstrumentKind{
otel.SumObserverInstrumentKind,
otel.UpDownSumObserverInstrumentKind,
}
var cumulativeMemoryKinds = []otel.InstrumentKind{
otel.ValueRecorderInstrumentKind,
otel.ValueObserverInstrumentKind,
otel.CounterInstrumentKind,
otel.UpDownCounterInstrumentKind,
}
func TestExportKindMemoryRequired(t *testing.T) {
for _, kind := range deltaMemoryKinds {
require.True(t, DeltaExportKind.MemoryRequired(kind))
require.False(t, CumulativeExportKind.MemoryRequired(kind))
}
for _, kind := range cumulativeMemoryKinds {
require.True(t, CumulativeExportKind.MemoryRequired(kind))
require.False(t, DeltaExportKind.MemoryRequired(kind))
}
}
func TestExportKindSelectors(t *testing.T) {
ceks := CumulativeExportKindSelector()
deks := DeltaExportKindSelector()
seks := StatelessExportKindSelector()
for _, ikind := range append(deltaMemoryKinds, cumulativeMemoryKinds...) {
desc := otel.NewDescriptor("instrument", ikind, number.Int64Kind)
var akind aggregation.Kind
if ikind.Adding() {
akind = aggregation.SumKind
} else {
akind = aggregation.HistogramKind
}
require.Equal(t, CumulativeExportKind, ceks.ExportKindFor(&desc, akind))
require.Equal(t, DeltaExportKind, deks.ExportKindFor(&desc, akind))
require.False(t, seks.ExportKindFor(&desc, akind).MemoryRequired(ikind))
}
}