perf(gateway): 优化热点路径并补齐高覆盖测试

backend/internal/service/ops_service_prepare_queue_test.go

@@ -0,0 +1,60 @@
+package service
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestPrepareOpsRequestBodyForQueue_EmptyBody(t *testing.T) {
+	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(nil)
+	require.Nil(t, requestBodyJSON)
+	require.False(t, truncated)
+	require.Nil(t, requestBodyBytes)
+}
+
+func TestPrepareOpsRequestBodyForQueue_InvalidJSON(t *testing.T) {
+	raw := []byte("{invalid-json")
+	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(raw)
+	require.Nil(t, requestBodyJSON)
+	require.False(t, truncated)
+	require.NotNil(t, requestBodyBytes)
+	require.Equal(t, len(raw), *requestBodyBytes)
+}
+
+func TestPrepareOpsRequestBodyForQueue_RedactSensitiveFields(t *testing.T) {
+	raw := []byte(`{
+		"model":"claude-3-5-sonnet-20241022",
+		"api_key":"sk-test-123",
+		"headers":{"authorization":"Bearer secret-token"},
+		"messages":[{"role":"user","content":"hello"}]
+	}`)
+
+	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(raw)
+	require.NotNil(t, requestBodyJSON)
+	require.NotNil(t, requestBodyBytes)
+	require.False(t, truncated)
+	require.Equal(t, len(raw), *requestBodyBytes)
+
+	var body map[string]any
+	require.NoError(t, json.Unmarshal([]byte(*requestBodyJSON), &body))
+	require.Equal(t, "[REDACTED]", body["api_key"])
+	headers, ok := body["headers"].(map[string]any)
+	require.True(t, ok)
+	require.Equal(t, "[REDACTED]", headers["authorization"])
+}
+
+func TestPrepareOpsRequestBodyForQueue_LargeBodyTruncated(t *testing.T) {
+	largeMsg := strings.Repeat("x", opsMaxStoredRequestBodyBytes*2)
+	raw := []byte(`{"model":"claude-3-5-sonnet-20241022","messages":[{"role":"user","content":"` + largeMsg + `"}]}`)
+
+	requestBodyJSON, truncated, requestBodyBytes := PrepareOpsRequestBodyForQueue(raw)
+	require.NotNil(t, requestBodyJSON)
+	require.NotNil(t, requestBodyBytes)
+	require.True(t, truncated)
+	require.Equal(t, len(raw), *requestBodyBytes)
+	require.LessOrEqual(t, len(*requestBodyJSON), opsMaxStoredRequestBodyBytes)
+	require.Contains(t, *requestBodyJSON, "request_body_truncated")
+}