From 91ffdbfca60386017c30a668ce0ff682b2ad4f0f Mon Sep 17 00:00:00 2001
From: Anod Chow <110156942+a92126@users.noreply.github.com>
Date: Sun, 27 Apr 2025 16:47:35 +0800
Subject: [PATCH] fix(components): [tree] filter update scheduling error
 (#20267)

* Update tree-store.ts

fix: the bug #20259
Ensure the sequence for the traverse step.

* fix(components): [tree] filter update scheduling error

fix(components): [tree] fix bug #20259
Ensure the sequence for the traverse step. If call the traverse without await, the code below will run before the children had been processed, making the parent node invisible.
---
 packages/components/tree/__tests__/tree.test.ts  | 2 +-
 packages/components/tree/src/model/tree-store.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/components/tree/__tests__/tree.test.ts b/packages/components/tree/__tests__/tree.test.ts
index a97b68d338..9af7a96f81 100644
--- a/packages/components/tree/__tests__/tree.test.ts
+++ b/packages/components/tree/__tests__/tree.test.ts
@@ -350,7 +350,7 @@ describe('Tree.vue', () => {
     const treeWrapper = wrapper.findComponent(Tree)
     ;(treeWrapper.vm as InstanceType<typeof Tree>).filter('2-1')
 
-    await nextTick()
+    await sleep()
     expect(treeWrapper.findAll('.el-tree-node.is-hidden').length).toEqual(3)
   })
   test('lazy load with filter expand loaded node', async () => {
diff --git a/packages/components/tree/src/model/tree-store.ts b/packages/components/tree/src/model/tree-store.ts
index 82371bb613..c3a98eaff0 100644
--- a/packages/components/tree/src/model/tree-store.ts
+++ b/packages/components/tree/src/model/tree-store.ts
@@ -79,7 +79,7 @@ export default class TreeStore {
         if (index % 80 === 0 && index > 0) {
           await nextTick()
         }
-        traverse(child)
+        await traverse(child)
       }
 
       if (!(node as Node).visible && childNodes.length) {