계층 표시 테스트 코드 추가

adminfront/src/features/user-groups/routes/TenantUserGroupsTab.tsx

@@ -65,11 +65,7 @@ import {
   updateUser,
 } from "../../../lib/adminApi";
 import { t } from "../../../lib/i18n";
-
-type TenantNode = TenantSummary & {
-  children: TenantNode[];
-  recursiveMemberCount: number;
-};
+import { type TenantNode, buildTenantFullTree } from "../../../lib/tenantTree";
 
 const getTenantIcon = (type?: string) => {
   switch (type?.toUpperCase()) {
@@ -779,58 +775,10 @@ function TenantUserGroupsTab() {
 
   const allTenants = data?.items ?? [];
 
-  const { currentBase, subTree } = useMemo(() => {
-    if (allTenants.length === 0) return { currentBase: null, subTree: [] };
-
-    const tenantMap = new Map<string, TenantNode>();
-    for (const t of allTenants) {
-      tenantMap.set(t.id, {
-        ...t,
-        children: [],
-        recursiveMemberCount: t.memberCount || 0,
-      });
-    }
-
-    // Build initial children relations
-    for (const t of allTenants) {
-      if (t.parentId) {
-        const parent = tenantMap.get(t.parentId);
-        const child = tenantMap.get(t.id);
-        if (parent && child) {
-          parent.children.push(child);
-        }
-      }
-    }
-
-    // Function to calculate recursive counts
-    const calculateRecursive = (node: TenantNode): number => {
-      let total = node.memberCount || 0;
-      for (const child of node.children) {
-        total += calculateRecursive(child);
-      }
-      node.recursiveMemberCount = total;
-      return total;
-    };
-
-    // Calculate for all root nodes (those without parent or top-level in current context)
-    for (const node of tenantMap.values()) {
-      // We only strictly need to calculate from the top-most nodes to cover everything
-      if (!node.parentId) {
-        calculateRecursive(node);
-      }
-    }
-
-    // Re-calculate specifically for our current tenant to be sure if it wasn't a global root
-    const base = tenantMap.get(tenantId);
-    if (base) {
-      calculateRecursive(base);
-    }
-
-    return {
-      currentBase: base || null,
-      subTree: base ? base.children : [],
-    };
-  }, [allTenants, tenantId]);
+  const { currentBase, subTree } = useMemo(
+    () => buildTenantFullTree(allTenants, tenantId),
+    [allTenants, tenantId],
+  );
 
   const handleAdd = (id: string) =>
     updateParentMutation.mutate({ id, parentId: tenantId });