opentelemetry-collector/scraper/factory_test.go

93 lines
2.3 KiB
Go

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package scraper
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/component/componenttest"
"go.opentelemetry.io/collector/pipeline"
)
var testType = component.MustNewType("test")
func nopSettings() Settings {
return Settings{
ID: component.NewID(testType),
TelemetrySettings: componenttest.NewNopTelemetrySettings(),
}
}
func TestNewFactory(t *testing.T) {
defaultCfg := struct{}{}
f := NewFactory(
testType,
func() component.Config { return &defaultCfg })
assert.EqualValues(t, testType, f.Type())
assert.EqualValues(t, &defaultCfg, f.CreateDefaultConfig())
_, err := f.CreateMetrics(context.Background(), nopSettings(), &defaultCfg)
require.ErrorIs(t, err, pipeline.ErrSignalNotSupported)
}
func TestNewFactoryWithOptions(t *testing.T) {
testType := component.MustNewType("test")
defaultCfg := struct{}{}
f := NewFactory(
testType,
func() component.Config { return &defaultCfg },
WithMetrics(createMetrics, component.StabilityLevelAlpha))
assert.EqualValues(t, testType, f.Type())
assert.EqualValues(t, &defaultCfg, f.CreateDefaultConfig())
assert.Equal(t, component.StabilityLevelAlpha, f.MetricsStability())
_, err := f.CreateMetrics(context.Background(), Settings{}, &defaultCfg)
require.NoError(t, err)
}
func TestMakeFactoryMap(t *testing.T) {
type testCase struct {
name string
in []Factory
out map[component.Type]Factory
}
p1 := NewFactory(component.MustNewType("p1"), nil)
p2 := NewFactory(component.MustNewType("p2"), nil)
testCases := []testCase{
{
name: "different names",
in: []Factory{p1, p2},
out: map[component.Type]Factory{
p1.Type(): p1,
p2.Type(): p2,
},
},
{
name: "same name",
in: []Factory{p1, p2, NewFactory(component.MustNewType("p1"), nil)},
},
}
for _, tt := range testCases {
t.Run(tt.name, func(t *testing.T) {
out, err := MakeFactoryMap(tt.in...)
if tt.out == nil {
assert.Error(t, err)
return
}
require.NoError(t, err)
assert.Equal(t, tt.out, out)
})
}
}
func createMetrics(context.Context, Settings, component.Config) (Metrics, error) {
return NewMetrics(newTestScrapeMetricsFunc(nil))
}