修复小程序内嵌页面标题同步

tests/unit/ExplainListNavigation.spec.ts

@@ -112,7 +112,7 @@ describe('讲解展厅列表返回', () => {
     window.history.replaceState({}, '', window.location.href)
     const wrapper = mountExplainList()
 
-    expect(wrapper.getComponent(ExplainHallSelectStub).props('forceInternalHeader')).toBe(true)
+    expect(wrapper.getComponent(ExplainHallSelectStub).props('forceInternalHeader')).toBe(false)
     await wrapper.get('[data-testid="explain-list-back"]').trigger('click')
 
     expect(uni.navigateBack).not.toHaveBeenCalled()

tests/unit/hostNavigationTitle.spec.ts

@@ -0,0 +1,61 @@
+// @vitest-environment happy-dom
+
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import {
+  MINI_PROGRAM_NAVIGATION_TITLE_MESSAGE,
+  syncHostNavigationTitle
+} from '@/utils/hostNavigationTitle'
+
+const hostEnvironmentMocks = vi.hoisted(() => ({
+  embeddedInWechatMiniProgram: false
+}))
+
+vi.mock('@/utils/hostEnvironment', () => ({
+  isEmbeddedInWechatMiniProgram: () => hostEnvironmentMocks.embeddedInWechatMiniProgram
+}))
+
+afterEach(() => {
+  hostEnvironmentMocks.embeddedInWechatMiniProgram = false
+  vi.unstubAllGlobals()
+})
+
+describe('小程序宿主标题同步', () => {
+  it('嵌入态同步免费讲解标题并通知小程序宿主', () => {
+    const postMessage = vi.fn()
+    const setNavigationBarTitle = vi.fn()
+    hostEnvironmentMocks.embeddedInWechatMiniProgram = true
+    vi.stubGlobal('uni', { setNavigationBarTitle })
+    vi.stubGlobal('window', {
+      ...window,
+      wx: {
+        miniProgram: { postMessage }
+      }
+    })
+
+    syncHostNavigationTitle('免费讲解')
+
+    expect(document.title).toBe('免费讲解')
+    expect(setNavigationBarTitle).toHaveBeenCalledWith({ title: '免费讲解' })
+    expect(postMessage).toHaveBeenCalledWith({
+      data: {
+        type: MINI_PROGRAM_NAVIGATION_TITLE_MESSAGE,
+        title: '免费讲解'
+      }
+    })
+  })
+
+  it('非嵌入态不向小程序桥接发送标题', () => {
+    const postMessage = vi.fn()
+    vi.stubGlobal('window', {
+      ...window,
+      wx: {
+        miniProgram: { postMessage }
+      }
+    })
+
+    syncHostNavigationTitle('免费讲解')
+
+    expect(document.title).toBe('免费讲解')
+    expect(postMessage).not.toHaveBeenCalled()
+  })
+})