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1c3626e636
* Make metric test helpers public * Move everything metric test related to api/metric/metrictest * Unify metric measurement assertions Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
71 lines
2.2 KiB
Go
71 lines
2.2 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 metrictest
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import (
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"testing"
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"go.opentelemetry.io/otel/api/metric"
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"go.opentelemetry.io/otel/label"
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)
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// Measured is the helper struct which provides flat representation of recorded measurements
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// to simplify testing
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type Measured struct {
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Name string
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InstrumentationName string
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InstrumentationVersion string
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Labels map[label.Key]label.Value
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Number metric.Number
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}
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// LabelsToMap converts label set to keyValue map, to be easily used in tests
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func LabelsToMap(kvs ...label.KeyValue) map[label.Key]label.Value {
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m := map[label.Key]label.Value{}
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for _, label := range kvs {
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m[label.Key] = label.Value
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}
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return m
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}
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// AsStructs converts recorded batches to array of flat, readable Measured helper structures
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func AsStructs(batches []Batch) []Measured {
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var r []Measured
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for _, batch := range batches {
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for _, m := range batch.Measurements {
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r = append(r, Measured{
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Name: m.Instrument.Descriptor().Name(),
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InstrumentationName: m.Instrument.Descriptor().InstrumentationName(),
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InstrumentationVersion: m.Instrument.Descriptor().InstrumentationVersion(),
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Labels: LabelsToMap(batch.Labels...),
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Number: m.Number,
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})
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}
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}
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return r
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}
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// ResolveNumberByKind takes defined metric descriptor creates a concrete typed metric number
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func ResolveNumberByKind(t *testing.T, kind metric.NumberKind, value float64) metric.Number {
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t.Helper()
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switch kind {
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case metric.Int64NumberKind:
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return metric.NewInt64Number(int64(value))
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case metric.Float64NumberKind:
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return metric.NewFloat64Number(value)
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}
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panic("invalid number kind")
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}
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