tracing: add minimal test

tracing/tracing.go

@@ -92,8 +92,6 @@ func InitTracer(ctx context.Context, cfg *TracerConfig) (TpShutdownFunc, error)
 
 func newOLTPExporter(ctx context.Context, cfg *TracerConfig) (otelsdktrace.SpanExporter, error) {
 
-	logger.Setup().Warn("newOLTPExporter")
-
 	opts := []otlptracehttp.Option{otlptracehttp.WithCompression(otlptracehttp.GzipCompression)}
 
 	if cfg.CertificateProvider != nil {
@@ -102,8 +100,6 @@ func newOLTPExporter(ctx context.Context, cfg *TracerConfig) (otelsdktrace.SpanE
 			GetClientCertificate: cfg.CertificateProvider,
 			RootCAs:              cfg.RootCAs,
 		}))
-	} else {
-		logger.Setup().Info("no cert provider")
 	}
 
 	if len(cfg.Endpoint) > 0 {

tracing/tracing_test.go

@@ -0,0 +1,22 @@
+package tracing
+
+import (
+	"context"
+	"os"
+	"testing"
+)
+
+func TestInit(t *testing.T) {
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	os.Setenv("OTEL_EXPORTER_OTLP_ENDPOINT", "localhost")
+
+	shutdownFn, err := InitTracer(ctx, &TracerConfig{})
+	if err != nil {
+		t.FailNow()
+	}
+	defer shutdownFn(ctx)
+
+}