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golden.go
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golden.go
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// Copyright Splunk, Inc.
// 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 testutils
import (
"context"
"fmt"
"path/filepath"
"runtime"
"testing"
"time"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/golden"
"github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatatest/pmetrictest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.opentelemetry.io/collector/component/componenttest"
"go.opentelemetry.io/collector/consumer/consumertest"
"go.opentelemetry.io/collector/receiver/otlpreceiver"
"go.opentelemetry.io/collector/receiver/receivertest"
"go.uber.org/zap"
)
func CheckGoldenFile(t *testing.T, configFile string, expectedFilePath string, options ...pmetrictest.CompareMetricsOption) {
f := otlpreceiver.NewFactory()
port := GetAvailablePort(t)
c := f.CreateDefaultConfig().(*otlpreceiver.Config)
c.GRPC.NetAddr.Endpoint = fmt.Sprintf("localhost:%d", port)
sink := &consumertest.MetricsSink{}
receiver, err := f.CreateMetricsReceiver(context.Background(), receivertest.NewNopCreateSettings(), c, sink)
require.NoError(t, err)
require.NoError(t, receiver.Start(context.Background(), componenttest.NewNopHost()))
t.Cleanup(func() {
require.NoError(t, receiver.Shutdown(context.Background()))
})
logger, _ := zap.NewDevelopment()
dockerHost := "0.0.0.0"
if runtime.GOOS == "darwin" {
dockerHost = "host.docker.internal"
}
p, err := NewCollectorContainer().
WithExposedPorts("55679:55679", "55554:55554"). // This is required for tests that read the zpages or the config.
WithConfigPath(filepath.Join("testdata", configFile)).
WithLogger(logger).
WithEnv(map[string]string{"OTLP_ENDPOINT": fmt.Sprintf("%s:%d", dockerHost, port)}).
Build()
require.NoError(t, err)
require.NoError(t, p.Start())
t.Cleanup(func() {
require.NoError(t, p.Shutdown())
})
expected, err := golden.ReadMetrics(filepath.Join("testdata", expectedFilePath))
require.NoError(t, err)
assert.EventuallyWithT(t, func(tt *assert.CollectT) {
if len(sink.AllMetrics()) == 0 {
assert.Fail(tt, "No metrics collected")
return
}
err := pmetrictest.CompareMetrics(expected, sink.AllMetrics()[len(sink.AllMetrics())-1], options...)
assert.NoError(tt, err)
}, 30*time.Second, 1*time.Second)
}