test: 建立桌面端自动化回归测试体系并完善跨平台 CI

(cherry picked from commit 74267ae2f63f8256c3da84b04f5b330e6e9d4c67)

tests/unit/bootstrap-cache.test.ts

@@ -0,0 +1,81 @@
+import { mkdtempSync, readFileSync, readdirSync, rmSync, writeFileSync } from 'fs'
+import { tmpdir } from 'os'
+import { join } from 'path'
+import { afterAll, beforeAll, beforeEach, describe, expect, it, vi } from 'vitest'
+import type { Contact, Message } from '../../src/shared/types'
+
+const userData = mkdtempSync(join(tmpdir(), 'wxe-bootstrap-test-'))
+
+vi.mock('electron', () => ({
+  app: { getPath: () => userData }
+}))
+
+import {
+  clearBootstrapCache,
+  flushBootstrapCacheWritesSync,
+  getBootstrapCache,
+  getCachedMessages,
+  saveBootstrapContacts,
+  saveCachedMessages
+} from '../../src/main/services/bootstrap-cache'
+
+const accountRoot = 'fixture-account-root'
+const contact: Contact = {
+  m_nsUsrName: 'fixture-user',
+  m_nsNickName: '脱敏联系人',
+  md5: 'fixture-md5',
+  type: 'user'
+}
+
+function findFile(name: string): string {
+  const visit = (directory: string): string | null => {
+    for (const entry of readdirSync(directory, { withFileTypes: true })) {
+      const file = join(directory, entry.name)
+      if (entry.isDirectory()) {
+        const nested = visit(file)
+        if (nested) return nested
+      } else if (entry.name === name) return file
+    }
+    return null
+  }
+  const result = visit(userData)
+  if (!result) throw new Error(`${name} was not written`)
+  return result
+}
+
+describe('bootstrap cache', () => {
+  beforeAll(() => rmSync(userData, { recursive: true, force: true }))
+  beforeEach(() => clearBootstrapCache())
+  afterAll(() => rmSync(userData, { recursive: true, force: true }))
+
+  it('persists contacts and caps each message bucket', () => {
+    saveBootstrapContacts(accountRoot, [contact])
+    const messages: Message[] = Array.from({ length: 140 }, (_, index) => ({
+      id: String(index),
+      from: 'user',
+      type: '文本',
+      datetime: '2026-08-01 10:00:00',
+      content: `fixture-${index}`,
+      isSender: false,
+      createTime: index + 1
+    }))
+    saveCachedMessages(accountRoot, contact.md5, undefined, undefined, messages)
+    flushBootstrapCacheWritesSync()
+    clearBootstrapCache()
+
+    expect(getBootstrapCache(accountRoot)?.contacts).toEqual([contact])
+    const cached = getCachedMessages(accountRoot, contact.md5)
+    expect(cached).toHaveLength(120)
+    expect(cached[0].id).toBe('20')
+  })
+
+  it('degrades to a cache miss when persisted JSON is corrupted', () => {
+    saveBootstrapContacts(accountRoot, [contact])
+    flushBootstrapCacheWritesSync()
+    const startup = findFile('startup.json')
+    expect(readFileSync(startup, 'utf8')).toContain('fixture-user')
+    writeFileSync(startup, '{broken', 'utf8')
+    clearBootstrapCache()
+    expect(getBootstrapCache(accountRoot)).toBeNull()
+  })
+})