fix(frontend): 修复文件树点击切换竞态

frontend/src/features/workspace/WorkspaceView.spec.ts

@@ -0,0 +1,32 @@
+// @vitest-environment happy-dom
+import { afterEach, beforeEach, describe, expect, it } from 'vitest'
+import { mount, type VueWrapper } from '@vue/test-utils'
+import { createPinia, setActivePinia } from 'pinia'
+import WorkspaceView from './WorkspaceView.vue'
+import { useWorkspaceStore } from '@/stores/workspace'
+
+let wrapper: VueWrapper | null = null
+
+beforeEach(() => {
+  localStorage.clear()
+  setActivePinia(createPinia())
+})
+
+afterEach(() => {
+  wrapper?.unmount()
+  wrapper = null
+})
+
+describe('WorkspaceView initial file', () => {
+  it('does not overwrite a file selected while the welcome note is loading', async () => {
+    const workspaceStore = useWorkspaceStore()
+    wrapper = mount(WorkspaceView, {
+      global: { stubs: { EditorHeader: true, EditorPane: true } },
+    })
+
+    workspaceStore.openFile('/数据结构/红黑树.md')
+    await new Promise((resolve) => setTimeout(resolve, 0))
+
+    expect(workspaceStore.activeFilePath).toBe('/数据结构/红黑树.md')
+  })
+})