/
shutdown_verifier.go
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/
shutdown_verifier.go
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// 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 componenttest // import "go.opentelemetry.io/collector/component/componenttest"
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/collector/component"
"go.opentelemetry.io/collector/component/componenterror"
"go.opentelemetry.io/collector/config"
"go.opentelemetry.io/collector/consumer/consumertest"
"go.opentelemetry.io/collector/internal/testdata"
)
func verifyTracesProcessorDoesntProduceAfterShutdown(t *testing.T, factory component.ProcessorFactory, cfg config.Processor) {
// Create a processor and output its produce to a sink.
nextSink := new(consumertest.TracesSink)
processor, err := factory.CreateTracesProcessor(
context.Background(),
NewNopProcessorCreateSettings(),
cfg,
nextSink,
)
if err != nil {
if err == componenterror.ErrDataTypeIsNotSupported {
return
}
require.NoError(t, err)
}
err = processor.Start(context.Background(), NewNopHost())
assert.NoError(t, err)
// Send some traces to the processor.
const generatedCount = 10
for i := 0; i < generatedCount; i++ {
require.NoError(t, processor.ConsumeTraces(context.Background(), testdata.GenerateTracesOneSpan()))
}
// Now shutdown the processor.
err = processor.Shutdown(context.Background())
assert.NoError(t, err)
// The Shutdown() is done. It means the processor must have sent everything we
// gave it to the next sink.
assert.EqualValues(t, generatedCount, nextSink.SpanCount())
}
// VerifyProcessorShutdown verifies the processor doesn't produce telemetry data after shutdown.
func VerifyProcessorShutdown(t *testing.T, factory component.ProcessorFactory, cfg config.Processor) {
verifyTracesProcessorDoesntProduceAfterShutdown(t, factory, cfg)
// TODO: add metrics and logs verification.
// TODO: add other shutdown verifications.
}