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opentelemetry-go/sdk/export/metric/exportkind_test.go
Joshua MacDonald 0e2fdfc682
Support cumulative, delta, and pass-through exporters (#840)
* Update Process()

* Checkpoint

* Add subtractor; fix test

* Fix all simple integrator tests

* Build the rest (checkpoint)

* Pass all but Prometheus tests

* Precommit pass

* Add aggregation.Kind argument to ExportKindFor

* Remove Subtractor support

* Remove dead test code

* Restore the Subtractor code

* Fix the tests

* Comments

* Add tests for MetricKind

* Add ChangeSign test

* Test ExportKind

* New file

* Rename ChangeSign

* Remove a TODO, add a TODO

* Remove Stateful remnants

* Typo

* Typo

* Test an invalid export kind

* Comments

* Lint

* Apply suggestions from code review

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

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2020-06-22 22:59:51 -07:00

65 lines
2.1 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 metric
import (
"testing"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/api/metric"
"go.opentelemetry.io/otel/sdk/export/metric/aggregation"
)
func TestExportKindIdentity(t *testing.T) {
akind := aggregation.Kind(0)
require.Equal(t, CumulativeExporter, CumulativeExporter.ExportKindFor(nil, akind))
require.Equal(t, DeltaExporter, DeltaExporter.ExportKindFor(nil, akind))
require.Equal(t, PassThroughExporter, PassThroughExporter.ExportKindFor(nil, akind))
}
func TestExportKindIncludes(t *testing.T) {
require.True(t, CumulativeExporter.Includes(CumulativeExporter))
require.True(t, DeltaExporter.Includes(CumulativeExporter|DeltaExporter))
require.False(t, DeltaExporter.Includes(PassThroughExporter|CumulativeExporter))
}
var deltaMemoryKinds = []metric.Kind{
metric.SumObserverKind,
metric.UpDownSumObserverKind,
}
var cumulativeMemoryKinds = []metric.Kind{
metric.ValueRecorderKind,
metric.ValueObserverKind,
metric.CounterKind,
metric.UpDownCounterKind,
}
func TestExportKindMemoryRequired(t *testing.T) {
for _, kind := range deltaMemoryKinds {
require.True(t, DeltaExporter.MemoryRequired(kind))
require.False(t, CumulativeExporter.MemoryRequired(kind))
require.False(t, PassThroughExporter.MemoryRequired(kind))
}
for _, kind := range cumulativeMemoryKinds {
require.True(t, CumulativeExporter.MemoryRequired(kind))
require.False(t, DeltaExporter.MemoryRequired(kind))
require.False(t, PassThroughExporter.MemoryRequired(kind))
}
}