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/**
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* useBizTree：树取数与草稿保护编排。
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*
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* 重点覆盖两块最容易回归、也最难靠肉眼验证的行为：
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* 1. 重载时保留未落库草稿（含父节点已消失时降级为顶级 + 重算 b_depth / b_path）；
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* 2. 默认建树 / 装饰口径，以及每个可覆盖的口子（load / transform / condition / onError）。
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*/
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import { describe, expect, it, vi, beforeEach } from 'vitest'
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import { toRaw } from 'vue'
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import { useBizTree } from '@/composables/useBizTree'
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import type { TreeRow } from '@/utils/tree'
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/** 把 loadDataApi 换掉：本文件只测编排，不打真接口 */
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const loadDataApi = vi.fn()
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vi.mock('@/services/api', () => ({
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loadDataApi: (...args: unknown[]) => loadDataApi(...args),
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}))
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/**
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* 扁平行：模块树形态（b_parent_id 是权威关系）。
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* b_depth / b_path 是库里的派生列，真实行都带着 —— mock 也要带，
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* 否则位置派生（applyTreePosition）会按「父级 depth 缺失 = 0」算出浅一层的错值。
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*/
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const ROWS = [
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{ b_id: 'm1', b_parent_id: null, b_name: '模块一', b_module_type: 'module', b_xh: 20, b_depth: 0, b_path: '/m1/' },
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{ b_id: 'm2', b_parent_id: null, b_name: '模块二', b_module_type: 'module', b_xh: 10, b_depth: 0, b_path: '/m2/' },
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{ b_id: 'd1', b_parent_id: 'm1', b_name: '数据一', b_module_type: 'data', b_xh: 10, b_depth: 1, b_path: '/m1/d1/' },
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{ b_id: 'd2', b_parent_id: 'd1', b_name: '数据二', b_module_type: 'data', b_xh: 10, b_depth: 2, b_path: '/m1/d1/d2/' },
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]
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/**
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* 按 condition 过滤的假后端。
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*
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* ⚠️ 必须真的按条件筛，不能一律返回全表：懒加载的核心行为就是「按父级分次取」，
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* mock 若不筛，根请求也会带回子孙，懒加载路径等于没被验证（一开始就是这么写的）。
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* 只认本文件用到的两种条件：父级为空（根）、`b_parent_id = 'X'`（某节点的子节点）。
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*/
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function fakeBackend(condition: string): Array<Record<string, unknown>> {
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const parentEq = /b_parent_id\s*=\s*'([^']*)'/.exec(condition)
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if (parentEq) {
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return ROWS.filter((row) => String(row.b_parent_id ?? '') === parentEq[1]).map((r) => ({ ...r }))
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}
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if (/b_parent_id\s+IS\s+NULL/i.test(condition)) {
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return ROWS.filter((row) => row.b_parent_id == null).map((row) => ({ ...row }))
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}
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// 全量（懒加载关掉时）
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return ROWS.map((row) => ({ ...row }))
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}
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beforeEach(() => {
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loadDataApi.mockReset()
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loadDataApi.mockImplementation((_table: string, condition: string) =>
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Promise.resolve(fakeBackend(condition ?? '')),
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)
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})
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describe('默认建树与装饰', () => {
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it('按 b_xh 排序建树，子节点挂到父级下', async () => {
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const tree = useBizTree({ table: 's_module', lazy: false })
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await tree.reload()
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// b_xh 10 的 m2 排在 20 的 m1 前面
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expect(tree.treeData.value.map((node) => node.b_id)).toEqual(['m2', 'm1'])
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const m1 = tree.findNode('m1') as TreeRow
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expect((m1.children as TreeRow[]).map((child) => child.b_id)).toEqual(['d1'])
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})
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it('全量模式：默认取数走 loadDataApi(table, condition, orderBy)', async () => {
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const tree = useBizTree({
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table: 's_module',
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condition: 'b_canuse = 1',
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orderBy: 'b_id ASC',
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lazy: false,
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})
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await tree.reload()
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expect(loadDataApi).toHaveBeenCalledWith('s_module', 'b_canuse = 1', 'b_id ASC')
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})
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it('传 typeField 时按 nonLeafValues / iconMap 装饰', async () => {
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const Icon = { name: 'StubIcon' }
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const tree = useBizTree({
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table: 's_module',
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typeField: 'b_module_type',
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nonLeafValues: ['module'],
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iconMap: { module: Icon as never },
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lazy: false,
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})
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await tree.reload()
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const m1 = tree.findNode('m1') as TreeRow
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// module 可承载子节点 → 强制非叶子（暂无子节点也显示箭头）
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expect(m1.isLeaf).toBe(false)
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// treeData 是 ref，读出来的节点是深度代理，icon 组件被包了一层 Proxy，
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// 所以比对象身份要用 toBe 之前先取原始对象（页面侧同样按引用消费，行为一致）
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expect(toRaw(m1).icon).toBe(Icon)
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// data 不在 nonLeafValues 里，不强制
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expect((tree.findNode('d1') as TreeRow).isLeaf).toBeUndefined()
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})
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it('不传 typeField 时不做装饰（isLeaf / icon 都不动）', async () => {
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const tree = useBizTree({ table: 's_module' })
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await tree.reload()
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const m1 = tree.findNode('m1') as TreeRow
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expect(m1.isLeaf).toBeUndefined()
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expect(m1.icon).toBeUndefined()
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})
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})
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describe('可覆盖的口子', () => {
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it('load 接管后不再调 loadDataApi', async () => {
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const tree = useBizTree({
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table: 's_module',
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load: async () => [{ b_id: 'x', b_parent_id: null, b_name: '自定义', b_xh: 1 }],
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})
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await tree.reload()
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expect(loadDataApi).not.toHaveBeenCalled()
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expect(tree.treeData.value.map((node) => node.b_id)).toEqual(['x'])
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})
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it('全量模式：load 能拿到 table / condition / orderBy 上下文', async () => {
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const spy = vi.fn().mockResolvedValue([])
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const tree = useBizTree({ table: 's_menu', condition: 'b_canuse = 1', load: spy, lazy: false })
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await tree.reload()
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expect(spy).toHaveBeenCalledWith({
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table: 's_menu',
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condition: 'b_canuse = 1',
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orderBy: 'b_xh ASC, b_id ASC',
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})
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})
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it('懒加载模式：首屏只查根节点，condition 不参与（按父级为空的根条件）', async () => {
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const tree = useBizTree({ table: 's_module', condition: 'b_canuse = 1' })
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await tree.reload()
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expect(loadDataApi).toHaveBeenCalledTimes(1)
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const [, condition] = loadDataApi.mock.calls[0] as [string, string]
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expect(condition).toContain('b_parent_id IS NULL')
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expect(condition).not.toBe('b_canuse = 1')
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})
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it('transform 接管建树（接口已返回嵌套结构时原样使用）', async () => {
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const nested = [{ b_id: 'root', b_name: '根', b_parent_id: null, children: [] }]
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const tree = useBizTree({ table: 't', transform: () => nested as never })
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await tree.reload()
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expect(tree.treeData.value).toEqual(nested)
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})
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it('transform 能读到装饰配置，便于自行复用', async () => {
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const spy = vi.fn().mockReturnValue([])
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const tree = useBizTree({ typeField: 'b_type', nonLeafValues: ['dir'], transform: spy })
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await tree.reload()
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expect(spy).toHaveBeenCalledWith(
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expect.any(Array),
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expect.objectContaining({ typeField: 'b_type', nonLeafValues: ['dir'] }),
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)
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})
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it('onError 接管后 loading 仍会复位，且不抛给调用方', async () => {
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const onError = vi.fn()
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loadDataApi.mockRejectedValue(new Error('boom'))
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const tree = useBizTree({ table: 't', onError })
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await expect(tree.reload()).resolves.toBeDefined()
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expect(onError).toHaveBeenCalledTimes(1)
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expect(tree.loading.value).toBe(false)
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})
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it('未传 onError 时默认弹提示（错误不吞掉，loading 复位）', async () => {
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loadDataApi.mockRejectedValue(new Error('boom'))
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const tree = useBizTree({ table: 't', label: '模块' })
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await tree.reload()
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expect(tree.loading.value).toBe(false)
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expect(tree.treeData.value).toEqual([])
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})
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})
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describe('草稿保护（preserveDrafts）', () => {
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it('重载时草稿子树不丢，并保持未保存标记', async () => {
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const tree = useBizTree({ table: 's_module' })
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await tree.reload()
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// 模拟「新增待保存」：本地插一个临时负数 id 的草稿
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const draft = {
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b_id: '-1',
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b_parent_id: null,
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b_name: '',
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b_module_type: 'module',
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b_xh: 10,
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} as TreeRow
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tree.treeData.value.push(draft)
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tree.markUnsaved('-1')
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await tree.reload()
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expect(tree.findNode('-1')).not.toBeNull()
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expect(tree.unsavedIds.has('-1')).toBe(true)
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})
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it('全量模式：草稿父节点已消失时降级为顶级，并重算 b_depth / b_path', async () => {
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const tree = useBizTree({ table: 's_module', lazy: false })
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await tree.reload()
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// 草稿挂在一个不存在的父级下（模拟父级已被改编码 / 删除）
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tree.treeData.value.push({
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b_id: '-2',
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b_parent_id: 'ghost',
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b_name: '孤儿草稿',
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b_module_type: 'module',
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b_xh: 10,
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b_depth: 3,
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b_path: '/ghost/-2/',
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} as TreeRow)
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tree.markUnsaved('-2')
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await tree.reload()
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const node = tree.findNode('-2') as TreeRow
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expect(node.b_parent_id).toBeNull()
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expect(node.b_depth).toBe(0)
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expect(node.b_path).toBe('/-2/')
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})
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it('懒加载模式：父节点尚未加载时草稿暂存，不擅自降级为顶级', async () => {
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const tree = useBizTree({ table: 's_module' })
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await tree.reload()
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// 'd1' 不是根节点：首屏只拉了根（m1 / m2），d1 此刻还不在树上。
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// 懒加载分不清「父节点不存在」和「父节点没展开」，所以不能像全量模式那样
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// 直接把 b_parent_id 抹成 null —— 那会静默丢掉层级，等展开再挂上才对。
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tree.treeData.value.push({
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b_id: '-4',
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b_parent_id: 'd1',
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b_name: '深层草稿',
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b_module_type: 'data',
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b_xh: 10,
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} as TreeRow)
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tree.markUnsaved('-4')
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await tree.reload()
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// 父节点没加载到 → 草稿先存着，不出现在树上，但标记还在
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expect(tree.findNode('-4')).toBeNull()
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expect(tree.unsavedIds.has('-4')).toBe(true)
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})
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it('懒加载模式：父节点展开后，暂存的草稿自动挂回去', async () => {
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const tree = useBizTree({ table: 's_module' })
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await tree.reload()
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tree.treeData.value.push({
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b_id: '-5',
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b_parent_id: 'd1',
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b_name: '等父节点的草稿',
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b_module_type: 'data',
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b_xh: 10,
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} as TreeRow)
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tree.markUnsaved('-5')
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await tree.reload()
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// 逐层展开 m1 → d1，草稿应在 d1 的子节点加载后出现
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await tree.loadChildren(tree.findNode('m1') as TreeRow)
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const d1 = tree.findNode('d1') as TreeRow
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await tree.loadChildren(d1)
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const draft = tree.findNode('-5') as TreeRow
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expect(draft).not.toBeNull()
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expect(draft.b_parent_id).toBe('d1')
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expect(draft.b_depth).toBe(2)
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})
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it('preserveDrafts=false 时草稿被丢弃', async () => {
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const tree = useBizTree({ table: 's_module', preserveDrafts: false })
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await tree.reload()
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tree.treeData.value.push({ b_id: '-3', b_parent_id: null, b_xh: 10 } as TreeRow)
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tree.markUnsaved('-3')
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await tree.reload()
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expect(tree.findNode('-3')).toBeNull()
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})
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it('重载丢弃的草稿其未保存标记也一并清掉', async () => {
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const tree = useBizTree({ table: 's_module', preserveDrafts: false })
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await tree.reload()
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tree.markUnsaved('no-such-node')
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await tree.reload()
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expect(tree.unsavedIds.has('no-such-node')).toBe(false)
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})
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})
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describe('节点查询与草稿标记', () => {
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it('findNode 对空 id 返回 null（不把空串当合法键）', async () => {
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// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
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// 用全量模式一次性建好整棵树，才能查到深层节点 d1
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const tree = useBizTree({ table: 't', lazy: false })
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await tree.reload()
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expect(tree.findNode(null)).toBeNull()
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expect(tree.findNode(undefined)).toBeNull()
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expect(tree.findNode('')).toBeNull()
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})
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it('findNode 能查到深层子节点', async () => {
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// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
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// 用全量模式一次性建好整棵树，才能查到深层节点 d1
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const tree = useBizTree({ table: 't', lazy: false })
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await tree.reload()
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expect((tree.findNode('d1') as TreeRow).b_name).toBe('数据一')
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})
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it('collectSubtreeIds 收集自身与全部后代', async () => {
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// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
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// 用全量模式一次性建好整棵树，才能查到深层节点 d1
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const tree = useBizTree({ table: 't', lazy: false })
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await tree.reload()
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// m1 → d1 → d2，三层都要收进来
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expect([...tree.collectSubtreeIds(tree.findNode('m1') as TreeRow)].sort()).toEqual([
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'd1',
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'd2',
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'm1',
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])
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})
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it('hasSavedDescendant：子孙里有已落库节点才为 true', async () => {
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// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
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// 用全量模式一次性建好整棵树，才能查到深层节点 d1
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const tree = useBizTree({ table: 't', lazy: false })
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await tree.reload()
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// d1 未标草稿 → 视为已落库
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expect(tree.hasSavedDescendant(tree.findNode('m1') as TreeRow)).toBe(true)
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// 整条子孙链都标成草稿（d1 与更深一层的 d2）后，m1 才算没有已落库的下级
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tree.markUnsaved('d1')
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tree.markUnsaved('d2')
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expect(tree.hasSavedDescendant(tree.findNode('m1') as TreeRow)).toBe(false)
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})
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it('unmarkUnsavedSubtree 连带清掉整棵子树的草稿标记', async () => {
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// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
|
||||
// 用全量模式一次性建好整棵树，才能查到深层节点 d1
|
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const tree = useBizTree({ table: 't', lazy: false })
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await tree.reload()
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tree.markUnsaved('m1')
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tree.markUnsaved('d1')
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tree.unmarkUnsavedSubtree(tree.findNode('m1') as TreeRow)
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expect(tree.unsavedIds.has('m1')).toBe(false)
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expect(tree.unsavedIds.has('d1')).toBe(false)
|
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})
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||||
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||||
it('unmarkUnsaved 只清单个节点，不动其子节点', async () => {
|
||||
// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
|
||||
// 用全量模式一次性建好整棵树，才能查到深层节点 d1
|
||||
const tree = useBizTree({ table: 't', lazy: false })
|
||||
await tree.reload()
|
||||
|
||||
tree.markUnsaved('m1')
|
||||
tree.markUnsaved('d1')
|
||||
tree.unmarkUnsaved('m1')
|
||||
|
||||
expect(tree.unsavedIds.has('m1')).toBe(false)
|
||||
expect(tree.unsavedIds.has('d1')).toBe(true)
|
||||
})
|
||||
|
||||
it('unmarkUnsavedSubtree 传空值时不报错', () => {
|
||||
// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
|
||||
// 用全量模式一次性建好整棵树，才能查到深层节点 d1
|
||||
const tree = useBizTree({ table: 't', lazy: false })
|
||||
expect(() => tree.unmarkUnsavedSubtree(null)).not.toThrow()
|
||||
})
|
||||
|
||||
it('syncSubtreePosition 递归重算整棵子树的派生列', () => {
|
||||
// 这组用例验证的是「树内查询 / 草稿标记」，不是加载行为：
|
||||
// 用全量模式一次性建好整棵树，才能查到深层节点 d1
|
||||
const tree = useBizTree({ table: 't', lazy: false })
|
||||
const parent = { b_id: 'p', b_depth: 0, b_path: '/p/' } as TreeRow
|
||||
const child = { b_id: 'c', b_parent_id: 'p' } as TreeRow
|
||||
const grandchild = { b_id: 'g', b_parent_id: 'c' } as TreeRow
|
||||
child.children = [grandchild]
|
||||
;(parent as TreeRow).children = [child]
|
||||
|
||||
tree.syncSubtreePosition(child as never, parent)
|
||||
|
||||
expect(child.b_depth).toBe(1)
|
||||
expect(child.b_path).toBe('/p/c/')
|
||||
expect(grandchild.b_depth).toBe(2)
|
||||
expect(grandchild.b_path).toBe('/p/c/g/')
|
||||
})
|
||||
})
|
||||
Reference in new issue
Block a user