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* Update License header for all source files - Add Apache 2.0 header to source files that did not have one. - Update all existing headers dated to 2019 to be 2020 - Remove comma from License header to comply with the Apache 2.0 guidelines. * Update Copyright notice Use the standard Copyright notices outlined by the [CNCF](https://github.com/cncf/foundation/blob/master/copyright-notices.md#copyright-notices)
76 lines
2.5 KiB
Go
76 lines
2.5 KiB
Go
// Copyright The OpenTelemetry Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package statsd_test
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import (
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"testing"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel/api/core"
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"go.opentelemetry.io/otel/api/key"
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"go.opentelemetry.io/otel/exporters/metric/internal/statsd"
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export "go.opentelemetry.io/otel/sdk/export/metric"
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sdk "go.opentelemetry.io/otel/sdk/metric"
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)
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var testLabels = []core.KeyValue{
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key.New("A").String("B"),
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key.New("C").String("D"),
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key.New("E").Float64(1.5),
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}
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func TestLabelSyntax(t *testing.T) {
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encoder := statsd.NewLabelEncoder()
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require.Equal(t, `|#A:B,C:D,E:1.5`, encoder.Encode(export.LabelSlice(testLabels).Iter()))
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kvs := []core.KeyValue{
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key.New("A").String("B"),
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}
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require.Equal(t, `|#A:B`, encoder.Encode(export.LabelSlice(kvs).Iter()))
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require.Equal(t, "", encoder.Encode(export.LabelSlice(nil).Iter()))
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}
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func TestLabelForceEncode(t *testing.T) {
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defaultLabelEncoder := sdk.NewDefaultLabelEncoder()
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statsdLabelEncoder := statsd.NewLabelEncoder()
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ls := export.LabelSlice(testLabels)
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exportLabelsDefault := export.NewLabels(ls, defaultLabelEncoder.Encode(ls.Iter()), defaultLabelEncoder)
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exportLabelsStatsd := export.NewLabels(ls, statsdLabelEncoder.Encode(ls.Iter()), statsdLabelEncoder)
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statsdEncoding := exportLabelsStatsd.Encoded()
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require.NotEqual(t, statsdEncoding, exportLabelsDefault.Encoded())
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forced, repeat := statsdLabelEncoder.ForceEncode(exportLabelsDefault)
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require.Equal(t, statsdEncoding, forced)
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require.True(t, repeat)
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forced, repeat = statsdLabelEncoder.ForceEncode(exportLabelsStatsd)
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require.Equal(t, statsdEncoding, forced)
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require.False(t, repeat)
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// Check that this works for an embedded implementation.
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exportLabelsEmbed := export.NewLabels(export.LabelSlice(testLabels), statsdEncoding, struct {
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*statsd.LabelEncoder
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}{LabelEncoder: statsdLabelEncoder})
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forced, repeat = statsdLabelEncoder.ForceEncode(exportLabelsEmbed)
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require.Equal(t, statsdEncoding, forced)
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require.False(t, repeat)
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}
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