mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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83 lines
1.7 KiB
Go
83 lines
1.7 KiB
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package metric // import "go.opentelemetry.io/otel/metric"
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import (
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"context"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"go.opentelemetry.io/otel/metric/embedded"
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)
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func TestInt64ObservableConfiguration(t *testing.T) {
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const (
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token int64 = 43
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desc = "Instrument description."
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uBytes = "By"
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)
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run := func(got int64ObservableConfig) func(*testing.T) {
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return func(t *testing.T) {
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assert.Equal(t, desc, got.Description(), "description")
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assert.Equal(t, uBytes, got.Unit(), "unit")
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// Functions are not comparable.
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cBacks := got.Callbacks()
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require.Len(t, cBacks, 1, "callbacks")
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o := &int64Observer{}
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err := cBacks[0](context.Background(), o)
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require.NoError(t, err)
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assert.Equal(t, token, o.got, "callback not set")
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}
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}
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cback := func(ctx context.Context, obsrv Int64Observer) error {
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obsrv.Observe(token)
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return nil
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}
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t.Run("Int64ObservableCounter", run(
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NewInt64ObservableCounterConfig(
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WithDescription(desc),
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WithUnit(uBytes),
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WithInt64Callback(cback),
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),
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))
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t.Run("Int64ObservableUpDownCounter", run(
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NewInt64ObservableUpDownCounterConfig(
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WithDescription(desc),
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WithUnit(uBytes),
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WithInt64Callback(cback),
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),
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))
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t.Run("Int64ObservableGauge", run(
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NewInt64ObservableGaugeConfig(
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WithDescription(desc),
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WithUnit(uBytes),
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WithInt64Callback(cback),
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),
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))
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}
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type int64ObservableConfig interface {
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Description() string
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Unit() string
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Callbacks() []Int64Callback
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}
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type int64Observer struct {
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embedded.Int64Observer
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Observable
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got int64
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}
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func (o *int64Observer) Observe(v int64, _ ...ObserveOption) {
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o.got = v
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}
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