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pnpm add https://pkg.pr.new/element-plus/element-plus@18578

commit: 8138e63

🧪 Playground Preview: https://element-plus.run/?pr=18578
Please comment the example via this playground if needed.

@momei-LJM Can you add this code to tree.test.ts file?

data() {
   return {
+   currentId: null,

test('update tree-data after current-node-key', async () => {
    const { wrapper, vm } = getTreeVm(
      `:props="defaultProps" :expand-on-click-node="false" default-expand-all highlight-current node-key="id" :current-node-key="currentId"`
    )

    vm.currentId = 22
    await nextTick()
    const currentNodeLabelWrapper = wrapper.find(
      '.is-current .el-tree-node__label'
    )
    expect(wrapper.find('.el-tree--highlight-current').exists()).toBe(true)
    expect(currentNodeLabelWrapper.text()).toEqual('二级 2-2')
    const _data = [...vm.data]
    await nextTick()
    vm.data = [..._data]
    await nextTick()
    const currentNodeLabelWrapper2 = wrapper.find(
      '.is-current .el-tree-node__label'
    )
    expect(currentNodeLabelWrapper2.exists()).toBe(true)
    expect(currentNodeLabelWrapper2.text()).toEqual('二级 2-2')
    expect(wrapper.find('.el-tree--highlight-current').exists()).toBe(true)
})

@momei-LJM Can you add this code to tree.test.ts file?

data() {
   return {
+   currentId: null,

test('update tree-data after current-node-key', async () => {
    const { wrapper, vm } = getTreeVm(
      `:props="defaultProps" :expand-on-click-node="false" default-expand-all highlight-current node-key="id" :current-node-key="currentId"`
    )

    vm.currentId = 22
    await nextTick()
    const currentNodeLabelWrapper = wrapper.find(
      '.is-current .el-tree-node__label'
    )
    expect(wrapper.find('.el-tree--highlight-current').exists()).toBe(true)
    expect(currentNodeLabelWrapper.text()).toEqual('二级 2-2')
    const _data = [...vm.data]
    await nextTick()
    vm.data = [..._data]
    await nextTick()
    const currentNodeLabelWrapper2 = wrapper.find(
      '.is-current .el-tree-node__label'
    )
    expect(currentNodeLabelWrapper2.exists()).toBe(true)
    expect(currentNodeLabelWrapper2.text()).toEqual('二级 2-2')
    expect(wrapper.find('.el-tree--highlight-current').exists()).toBe(true)
})

added

Could you add a test case?

done