mirror of
https://github.com/open-telemetry/opentelemetry-go.git
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65ebe5e50f
* PoC of embedded private method ifaces * Rename embed to embedded * Add an embedded iface for all instruments * Fix metric/instrument tests * Fix global and otel * Fix SDK * Comment the embedded pkg types * Update the embedded pkg docs * Update otel/metric docs about impls * Update otel/metric type docs on impl * Update docs in otel/metric/instrument on default * Add changes to changelog * Apply suggestions from code review Co-authored-by: Robert Pająk <pellared@hotmail.com> * Apply feedback on URLs * Reword based on feedback * Make it clear we only recommended embedding noop * Ignore links with godot linter --------- Co-authored-by: Robert Pająk <pellared@hotmail.com>
95 lines
2.3 KiB
Go
95 lines
2.3 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 instrument // import "go.opentelemetry.io/otel/metric/instrument"
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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/attribute"
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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, _ ...attribute.KeyValue) {
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o.got = v
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}
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