chore: 保存工作副本——客户端授权新契约(双端点/验签/令牌/周检)与桌面会话可靠性改进

test/utils/disconnectReason.test.ts

@@ -0,0 +1,38 @@
+import { describe, expect, it } from 'vitest'
+import {
+  classifyDisconnectReason,
+  reconnectDelayMs,
+  shouldAutoReconnect,
+  shouldForgetNativeConnection,
+} from '../../src/utils/disconnectReason'
+
+describe('classifyDisconnectReason', () => {
+  it('treats keepalive failure as a link drop that should reconnect', () => {
+    expect(classifyDisconnectReason('keepalive failed')).toBe('keepalive')
+    expect(shouldAutoReconnect('keepalive')).toBe(true)
+  })
+
+  it('does not treat the legacy native default as a user click', () => {
+    expect(classifyDisconnectReason('closed by user')).toBe('unexpected')
+    expect(classifyDisconnectReason('connection closed')).toBe('unexpected')
+    expect(shouldAutoReconnect('unexpected')).toBe(true)
+  })
+
+  it('skips auto-reconnect for local policy and teardown', () => {
+    expect(classifyDisconnectReason('idle suspend')).toBe('idle-suspend')
+    expect(shouldAutoReconnect('idle-suspend')).toBe(false)
+    expect(shouldForgetNativeConnection('idle-suspend')).toBe(false)
+
+    expect(classifyDisconnectReason('manual')).toBe('user')
+    expect(classifyDisconnectReason('no refs')).toBe('user')
+    expect(classifyDisconnectReason('auto reconnect cleanup')).toBe('cleanup')
+    expect(shouldAutoReconnect('user')).toBe(false)
+    expect(shouldAutoReconnect('cleanup')).toBe(false)
+  })
+
+  it('backs off reconnect delay', () => {
+    expect(reconnectDelayMs(1, 1000)).toBe(1000)
+    expect(reconnectDelayMs(2, 1000)).toBe(1600)
+    expect(reconnectDelayMs(20, 1000, 5000)).toBe(5000)
+  })
+})