[chore] add goleak tests for splunkhecreceiver (open-telemetry#31619)

Related to open-telemetry#30438

receiver/splunkhecreceiver/go.mod

@@ -22,6 +22,7 @@ require (
 	go.opentelemetry.io/collector/semconv v0.96.1-0.20240306115632-b2693620eff6
 	go.opentelemetry.io/otel/metric v1.24.0
 	go.opentelemetry.io/otel/trace v1.24.0
+	go.uber.org/goleak v1.3.0
 	go.uber.org/zap v1.27.0
 )
 

receiver/splunkhecreceiver/package_test.go

@@ -0,0 +1,14 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+package splunkhecreceiver
+
+import (
+	"testing"
+
+	"go.uber.org/goleak"
+)
+
+func TestMain(m *testing.M) {
+	goleak.VerifyTestMain(m, goleak.IgnoreTopFunction("go.opencensus.io/stats/view.(*worker).start"))
+}

receiver/splunkhecreceiver/receiver_test.go

@@ -461,6 +461,9 @@ func Test_splunkhecReceiver_TLS(t *testing.T) {
 
 	require.NoError(t, r.Start(context.Background(), componenttest.NewNopHost()), "should not have failed to start log reception")
 	require.NoError(t, r.Start(context.Background(), componenttest.NewNopHost()), "should not fail to start log on second Start call")
+	defer func() {
+		require.NoError(t, r.Shutdown(context.Background()))
+	}()
 
 	// If there are errors reported through ReportStatus this will retrieve it.
 	<-time.After(500 * time.Millisecond)
@@ -627,6 +630,9 @@ func Test_splunkhecReceiver_AccessTokenPassthrough(t *testing.T) {
 			if tt.metric {
 				exporter, err := factory.CreateMetricsExporter(context.Background(), exportertest.NewNopCreateSettings(), exporterConfig)
 				assert.NoError(t, exporter.Start(context.Background(), nil))
+				defer func() {
+					require.NoError(t, exporter.Shutdown(context.Background()))
+				}()
 				assert.NoError(t, err)
 				rcv, err := newMetricsReceiver(receivertest.NewNopCreateSettings(), *config, exporter)
 				assert.NoError(t, err)
@@ -640,6 +646,9 @@ func Test_splunkhecReceiver_AccessTokenPassthrough(t *testing.T) {
 			} else {
 				exporter, err := factory.CreateLogsExporter(context.Background(), exportertest.NewNopCreateSettings(), exporterConfig)
 				assert.NoError(t, exporter.Start(context.Background(), nil))
+				defer func() {
+					require.NoError(t, exporter.Shutdown(context.Background()))
+				}()
 				assert.NoError(t, err)
 				rcv, err := newLogsReceiver(receivertest.NewNopCreateSettings(), *config, exporter)
 				assert.NoError(t, err)
@@ -707,6 +716,9 @@ func Test_Logs_splunkhecReceiver_IndexSourceTypePassthrough(t *testing.T) {
 			exporter, err := factory.CreateLogsExporter(context.Background(), exportertest.NewNopCreateSettings(), exporterConfig)
 			assert.NoError(t, exporter.Start(context.Background(), nil))
 			assert.NoError(t, err)
+			defer func() {
+				require.NoError(t, exporter.Shutdown(context.Background()))
+			}()
 			rcv, err := newLogsReceiver(receivertest.NewNopCreateSettings(), *cfg, exporter)
 			assert.NoError(t, err)
 
@@ -804,6 +816,9 @@ func Test_Metrics_splunkhecReceiver_IndexSourceTypePassthrough(t *testing.T) {
 
 			exporter, err := factory.CreateMetricsExporter(context.Background(), exportertest.NewNopCreateSettings(), exporterConfig)
 			assert.NoError(t, exporter.Start(context.Background(), nil))
+			defer func() {
+				require.NoError(t, exporter.Shutdown(context.Background()))
+			}()
 			assert.NoError(t, err)
 			rcv, err := newMetricsReceiver(receivertest.NewNopCreateSettings(), *cfg, exporter)
 			assert.NoError(t, err)