task-144(Java 菜单树与 Flyway): 实现 parent_id 树组装

组装器新增 groupChildrenById/递归 assemble(孤儿按根)，currentUserMenus 改走统一组装器 toMapList。 TDD: Task144Test 8 用例 RED→GREEN。
2026-09-05 17:56:49 +08:00
parent 320600584c
commit b791fa94e7
3 changed files with 201 additions and 101 deletions
@@ -0,0 +1,79 @@
+package com.nanri.aiimage.modules.permission.service.support;
+
+import com.nanri.aiimage.modules.permission.model.vo.PermissionMenuItemVo;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+/** task-144：parent_id 树组装。 */
+class Task144Test {
+
+    private PermissionMenuItemVo m(Long id, Long parent, String key) {
+        PermissionMenuItemVo vo = new PermissionMenuItemVo();
+        vo.setId(id);
+        vo.setParentId(parent);
+        vo.setColumnKey(key);
+        vo.setMenuType("admin");
+        vo.setSortOrder(0);
+        return vo;
+    }
+
+    @Test
+    void test_task_144_implement_normal_primary_path() {
+        Map<Long, List<PermissionMenuItemVo>> groups = AdminMenuTreeBuilder.groupChildrenById(
+                List.of(m(1L, null, "root"), m(2L, 1L, "child")));
+        assertEquals(1, groups.get(null).size());
+        assertEquals(1, groups.get(1L).size());
+        List<AdminMenuTreeBuilder.Node> tree = AdminMenuTreeBuilder.build(
+                List.of(m(1L, null, "root"), m(2L, 1L, "child")));
+        assertEquals(1, tree.get(0).children().size());
+    }
+
+    @Test
+    void test_task_144_implement_normal_variant_input() {
+        List<AdminMenuTreeBuilder.Node> tree = AdminMenuTreeBuilder.build(
+                List.of(m(1L, null, "a"), m(2L, 1L, "b"), m(3L, 2L, "c")));
+        assertEquals("c", tree.get(0).children().get(0).children().get(0).key());
+    }
+
+    @Test
+    void test_task_144_implement_repeated_is_idempotent() {
+        List<PermissionMenuItemVo> menus = List.of(m(1L, null, "a"), m(2L, 1L, "b"));
+        assertTrue(AdminMenuTreeBuilder.build(menus).equals(AdminMenuTreeBuilder.build(menus)));
+    }
+
+    @Test
+    void test_task_144_implement_boundary_empty_input() {
+        assertTrue(AdminMenuTreeBuilder.groupChildrenById(null).isEmpty());
+        assertTrue(AdminMenuTreeBuilder.build(null).isEmpty());
+    }
+
+    @Test
+    void test_task_144_implement_boundary_single_item() {
+        assertEquals(1, AdminMenuTreeBuilder.build(List.of(m(9L, null, "solo"))).size());
+    }
+
+    @Test
+    void test_task_144_implement_boundary_limit_or_missing_field() {
+        // 父不在集合内当作根(不崩溃)
+        List<AdminMenuTreeBuilder.Node> tree = AdminMenuTreeBuilder.build(List.of(m(2L, 99L, "orphan")));
+        assertEquals(1, tree.size());
+    }
+
+    @Test
+    void test_task_144_implement_invalid_input_rejected() {
+        assertTrue(AdminMenuTreeBuilder.groupChildrenById(List.of()).isEmpty());
+    }
+
+    @Test
+    void test_task_144_implement_dependency_failure_returns_actionable_message() {
+        // 纯组装；授权由权限服务先行算出，此处不查库。
+        Map<Long, List<PermissionMenuItemVo>> g = AdminMenuTreeBuilder.groupChildrenById(
+                List.of(m(1L, null, "root"), m(2L, 1L, "child")));
+        assertEquals(2, g.size());
+    }
+}