1
0
mirror of https://github.com/open-telemetry/opentelemetry-go.git synced 2024-12-12 10:04:29 +02:00
opentelemetry-go/internal/global/registry_test.go
Krzesimir Nowak 3d6e8b5078
Move Version function and code from global to toplevel (#1330)
* Move global code to toplevel package

* Move version function to toplevel package

* Update changelog

Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
2020-11-16 09:30:54 -08:00

116 lines
3.3 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 global
import (
"context"
"errors"
"testing"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/otel/metric"
"go.opentelemetry.io/otel/metric/registry"
)
type (
newFunc func(name, libraryName string) (metric.InstrumentImpl, error)
)
var (
allNew = map[string]newFunc{
"counter.int64": func(name, libraryName string) (metric.InstrumentImpl, error) {
return unwrap(MeterProvider().Meter(libraryName).NewInt64Counter(name))
},
"counter.float64": func(name, libraryName string) (metric.InstrumentImpl, error) {
return unwrap(MeterProvider().Meter(libraryName).NewFloat64Counter(name))
},
"valuerecorder.int64": func(name, libraryName string) (metric.InstrumentImpl, error) {
return unwrap(MeterProvider().Meter(libraryName).NewInt64ValueRecorder(name))
},
"valuerecorder.float64": func(name, libraryName string) (metric.InstrumentImpl, error) {
return unwrap(MeterProvider().Meter(libraryName).NewFloat64ValueRecorder(name))
},
"valueobserver.int64": func(name, libraryName string) (metric.InstrumentImpl, error) {
return unwrap(MeterProvider().Meter(libraryName).NewInt64ValueObserver(name, func(context.Context, metric.Int64ObserverResult) {}))
},
"valueobserver.float64": func(name, libraryName string) (metric.InstrumentImpl, error) {
return unwrap(MeterProvider().Meter(libraryName).NewFloat64ValueObserver(name, func(context.Context, metric.Float64ObserverResult) {}))
},
}
)
func unwrap(impl interface{}, err error) (metric.InstrumentImpl, error) {
if impl == nil {
return nil, err
}
if s, ok := impl.(interface {
SyncImpl() metric.SyncImpl
}); ok {
return s.SyncImpl(), err
}
if a, ok := impl.(interface {
AsyncImpl() metric.AsyncImpl
}); ok {
return a.AsyncImpl(), err
}
return nil, err
}
func TestRegistrySameInstruments(t *testing.T) {
for _, nf := range allNew {
ResetForTest()
inst1, err1 := nf("this", "meter")
inst2, err2 := nf("this", "meter")
require.NoError(t, err1)
require.NoError(t, err2)
require.Equal(t, inst1, inst2)
}
}
func TestRegistryDifferentNamespace(t *testing.T) {
for _, nf := range allNew {
ResetForTest()
inst1, err1 := nf("this", "meter1")
inst2, err2 := nf("this", "meter2")
require.NoError(t, err1)
require.NoError(t, err2)
require.NotEqual(t, inst1, inst2)
}
}
func TestRegistryDiffInstruments(t *testing.T) {
for origName, origf := range allNew {
ResetForTest()
_, err := origf("this", "super")
require.NoError(t, err)
for newName, nf := range allNew {
if newName == origName {
continue
}
other, err := nf("this", "super")
require.Error(t, err)
require.NotNil(t, other)
require.True(t, errors.Is(err, registry.ErrMetricKindMismatch))
require.Contains(t, err.Error(), "super")
}
}
}