chore: 并入 iotlcm-admin-svr 历史到 admin-svr/（原提交 49818c6）

admin-svr/server/internal/tasks/traffic_usage_monthly_test.go

@@ -0,0 +1,32 @@
+package tasks
+
+import (
+	"testing"
+	"time"
+)
+
+func TestTrafficUsageMonthlyTaskRegistrations(t *testing.T) {
+	tests := map[string]string{
+		"sync_traffic_usage_monthly":    "SyncTrafficUsageMonthly",
+		"start_traffic_usage_full_sync": "StartTrafficUsageFullSync",
+	}
+	for name, method := range tests {
+		if actual := GetInnerTaskName(name); actual != method {
+			t.Fatalf("task %q registered as %q, want %q", name, actual, method)
+		}
+	}
+}
+
+func TestTrafficUsageJobLockUsesStableActiveScope(t *testing.T) {
+	first := time.Date(2026, 9, 20, 23, 59, 0, 0, time.Local)
+	second := first.Add(2 * time.Minute)
+	if got := jobLockPeriodKey(first, -1); got != "active" {
+		t.Fatalf("first active key = %q", got)
+	}
+	if got := jobLockPeriodKey(second, -1); got != "active" {
+		t.Fatalf("second active key = %q", got)
+	}
+	if jobLockKey("sync_traffic_usage_daily", first, -1) != jobLockKey("sync_traffic_usage_daily", second, -1) {
+		t.Fatal("active job lock key must remain stable across midnight")
+	}
+}