Sub2API v1.0 - AI API 网关（二开初始版本，基于上游 Wei-Shaw/sub2api）

backend/internal/repository/channel_monitor_duplicate_test.go

@@ -0,0 +1,29 @@
+//go:build unit
+
+package repository
+
+import (
+	"testing"
+
+	dbent "github.com/Wei-Shaw/sub2api/ent"
+	"github.com/Wei-Shaw/sub2api/internal/service"
+	"github.com/stretchr/testify/require"
+)
+
+func TestChannelMonitorDuplicateOperationMetadataStaysOutOfRuntimeHeaders(t *testing.T) {
+	monitor := &service.ChannelMonitor{
+		ExtraHeaders:         map[string]string{"User-Agent": "Codex"},
+		DuplicateOperationID: "operation-digest",
+	}
+
+	persisted := channelMonitorHeadersForPersistence(monitor)
+	require.Equal(t, "operation-digest", persisted[service.ChannelMonitorDuplicateOperationIDMetadataKey])
+	require.Equal(t, "Codex", persisted["User-Agent"])
+	require.NotContains(t, monitor.ExtraHeaders, service.ChannelMonitorDuplicateOperationIDMetadataKey)
+
+	restored := entToServiceMonitor(&dbent.ChannelMonitor{ExtraHeaders: persisted})
+	require.Equal(t, "operation-digest", restored.DuplicateOperationID)
+	require.Equal(t, map[string]string{"User-Agent": "Codex"}, restored.ExtraHeaders)
+	require.NotContains(t, restored.ExtraHeaders, service.ChannelMonitorDuplicateOperationIDMetadataKey)
+	require.Equal(t, "operation-digest", persisted[service.ChannelMonitorDuplicateOperationIDMetadataKey], "decoding must not mutate the ent row")
+}