MailUI4Agents/plugins/dsh-mail-bridge/test/relay-policy.test.mjs

/**
 * 自动转发适用范围的判定（lib/relay-policy.js）。
 *
 * 三个函数是同一件事的三个出口，必须一起看：
 *   - autoRelayDecision  插件该不该替模型把结论发出去
 *   - replyInstruction   提示词里怎么跟模型说这件事
 *   - inboundHeadline    进来的这封是新活、是回复、还是补投
 *
 * 分开写必然分叉，而分叉的代价是模型被骗：以为插件会替它回信，于是把话说完
 * 就停手，那封信却永远不会发出去。所以这里逐条钉住它们的一致性。
 */

import { test } from 'node:test';
import assert from 'node:assert/strict';

import {
  addrName,
  autoRelayDecision,
  replyInstruction,
  inboundHeadline,
} from '../lib/relay-policy.js';

// ─── addrName ───

test('addrName 取三维地址的名字段', () => {
  assert.equal(addrName('pi@/home/program/agentmail.某别名'), 'pi');
  assert.equal(addrName('jianf'), 'jianf');
  assert.equal(addrName('  dsh@/x  '), 'dsh');
  assert.equal(addrName(''), '');
  assert.equal(addrName(undefined), '');
});

// ─── autoRelayDecision ───

test('人类来信 → 自动转发', () => {
  const d = autoRelayDecision({ fromHuman: true, replyTo: 'jianf' });
  assert.equal(d.relay, true);
});

test('Agent 来信 → 不自动转发', () => {
  const d = autoRelayDecision({ fromHuman: false, replyTo: 'dsh' });
  assert.equal(d.relay, false,
    'Agent 间通信必须由模型主动 send_mail —— 两边都自动回会无休止互相唤醒');
  assert.match(d.reason, /dsh/, '日志要说清是谁');
  assert.match(d.reason, /Agent/);
});

test('不知道回给谁 → 不转发，且理由与「对方是 Agent」区分得开', () => {
  const d = autoRelayDecision({ fromHuman: true, replyTo: '' });
  assert.equal(d.relay, false);
  assert.match(d.reason, /不知道回给谁/,
    '「本轮没有回信」有三种原因，日志里必须能分辨');
});

test('replyTo 带三维地址时也能认出 Agent 名', () => {
  const d = autoRelayDecision({ fromHuman: false, replyTo: 'opencode@/home/x.别名' });
  assert.equal(d.relay, false);
  assert.match(d.reason, /opencode/);
});

test('缺省参数不抛错（畸形事件不该弄死投递）', () => {
  assert.equal(autoRelayDecision().relay, false);
  assert.equal(autoRelayDecision({}).relay, false);
});

// ─── replyInstruction 与 autoRelayDecision 的一致性 ───

test('人类来信的提示词承诺「插件会替你发」，且这与决策一致', () => {
  const lines = replyInstruction({ fromHuman: true });
  const text = lines.join('\n');
  assert.match(text, /回信不用你自己发/);
  assert.equal(autoRelayDecision({ fromHuman: true, replyTo: 'jianf' }).relay, true,
    '承诺了就必须真的做');
});

test('Agent 来信的提示词必须明说「插件不会替你回信」', () => {
  const text = replyInstruction({ fromHuman: false }).join('\n');
  assert.match(text, /不会替你回信/);
  assert.match(text, /send_mail/, '必须给出唯一可行的做法');
  assert.doesNotMatch(text, /回信不用你自己发/,
    '这句话在 Agent → Agent 时是假的 —— 说了它模型就会把话说完然后停手');
});

test('Agent 来信的提示词要劝阻纯客套', () => {
  const text = replyInstruction({ fromHuman: false }).join('\n');
  assert.match(text, /收到|确认/, '要点名那种没有信息量的回复');
  assert.match(text, /互相客套|无休止/, '要说清后果，否则模型不知道为什么被劝阻');
});

test('Agent 来信时把回信地址带进提示词（有就带）', () => {
  const withAddr = replyInstruction({ fromHuman: false, replyAddress: 'dsh@/x.别名' }).join('\n');
  assert.match(withAddr, /dsh@\/x\.别名/,
    '要它自己发信却不给地址，它会拼一个 .new 出来 —— 那会静默开新会话');
  const without = replyInstruction({ fromHuman: false }).join('\n');
  assert.doesNotMatch(without, /（回信地址：）/, '没有地址时不该留一个空括号');
});

// ─── inboundHeadline ───

test('回复到了 → 明说「这不是新任务」', () => {
  const h = inboundHeadline({ inReplyTo: 'm-1', fromHuman: false });
  assert.match(h, /回复/);
  assert.match(h, /不是新任务/,
    '把回复当新任务处理正是互相客套的起点');
});

test('回复的标题优先于续谈/补投标记', () => {
  const h = inboundHeadline({ inReplyTo: 'm-1', fromHuman: true, reused: true, catchup: true });
  assert.match(h, /回复/, 'in_reply_to 是最强信号');
});

test('Agent 来信在标题里就标出来', () => {
  assert.match(inboundHeadline({ fromHuman: false }), /Agent/);
  assert.doesNotMatch(inboundHeadline({ fromHuman: true }), /Agent/,
    '人类来信不该带这个括号 —— 那是噪音');
});

test('补投要说明，否则模型按「刚到的」语气回', () => {
  const h = inboundHeadline({ fromHuman: true, catchup: true });
  assert.match(h, /积压|补投/);
});

test('续谈与新会话的措辞不同', () => {
  assert.match(inboundHeadline({ fromHuman: true, reused: true }), /本会话/);
  assert.match(inboundHeadline({ fromHuman: true, reused: false }), /你收到/);
});

test('缺省参数不抛错', () => {
  assert.equal(typeof inboundHeadline(), 'string');
  assert.equal(typeof inboundHeadline({}), 'string');
});