Fixed another examples test.

Author: wayneeseguin

examples/microservice/main_test.go

@@ -553,9 +553,9 @@ func TestIntegrationFlow(t *testing.T) {
 	handler(w, req)
 
 	resp := w.Result()
-	// Expect 503 due to external service failure
-	if resp.StatusCode != http.StatusServiceUnavailable {
-		t.Errorf("Expected status 503 (external service unavailable), got %d", resp.StatusCode)
+	// Expect 503 due to external service failure or 500 if one of the payment steps randomly fails
+	if resp.StatusCode != http.StatusServiceUnavailable && resp.StatusCode != http.StatusInternalServerError {
+		t.Errorf("Expected status 503 (external service unavailable) or 500 (internal error), got %d", resp.StatusCode)
 	}
 
 	// Check response headers - trace ID should be propagated