余额为 0 时改为发探针，不再无条件全部跳过
balance 只有前端上报这一条上升通道，没升级小程序的老用户在微信侧仍在 真实累积额度却永远不上报，记账会系统性低估。低估到 0 就一条不发，比 改造前更糟——改造前至少还会试。 改为：余额为 0 时仍发出优先级最高的那一条当探针。成功则证实微信侧有 额度，本轮继续发；43101 则立即中止（与原行为一致）；非额度错误记 failed 且不再重复探。每用户每轮最多探一次。 探针成功仍走 quota.consume：内部 MAX(0, balance-1) 扣不出负数，净效果是 balance 保持 0、sentTotal +1。不趁机把 balance 调高——探针只证明「至少 还有 1 条」，凭空补猜出来的数字会让首页风险预告变成乐观的假话。 注：三个原有用例断言的是「余额 0 就一个请求都不发」这一被本次刻意推翻的 旧契约，已按新行为改写；改写后仍用变异测试确认能抓到探针被关掉。 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
yuming
+157
-34
@@ -47,35 +47,132 @@ test('额度够时全部发出', async () => {
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test('额度不足时当天优先、同级按重要程度', async () => {
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resetLogs()
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quota.grant('uB', 1)
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const attempts = [] // 所有真正打出去的请求
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const sent = [] // 其中发送成功的
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const restore = wx.sendSubscribeMessage
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// 第一条放行、之后一律 43101。
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// Why 要让微信亲口说 43101：记账余额只有 1，但第二条会被当作「探针」发出去（见探针机制），
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// 只有微信侧确认没额度，「额度不足时的取舍」才真正成立。
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wx.sendSubscribeMessage = async (p) => {
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attempts.push(p.data.name1.value)
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if (attempts.length > 1) {
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const e = new Error('发送订阅消息失败')
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e.errcode = 43101
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throw e
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}
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sent.push(p.data.name1.value)
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return { errcode: 0 }
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}
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try {
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const items = [
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makeAnniv('B1', 'uB', '提前的', 'high', 3, 3), // 提前事件（daysUntil=3=remindDays）
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makeAnniv('B2', 'uB', '当天低', 'low', 0, 3), // 当天事件
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makeAnniv('B3', 'uB', '当天高', 'high', 0, 3) // 当天事件，重要程度更高
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]
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const r = await reminder.runForUser('uB', items, TODAY)
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assert.strictEqual(r.ok, 1)
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assert.strictEqual(r.skipped, 2)
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assert.deepStrictEqual(sent, ['当天高'], '应当只发出当天且最重要的那条')
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assert.deepStrictEqual(attempts, ['当天高', '当天低'], '探针也要按优先级挑下一条，且被拒后不再打第三个请求')
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} finally {
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wx.sendSubscribeMessage = restore
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}
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})
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test('记账余额为 0 但微信侧仍有额度：探针成功后本轮继续发送', async () => {
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resetLogs()
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// uP1 从未 grant 过，记账余额为 0——模拟「没升级小程序、授权从不上报」的老用户
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assert.strictEqual(quota.getBalance('uP1'), 0)
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const sent = []
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const restore = wx.sendSubscribeMessage
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wx.sendSubscribeMessage = async (p) => { sent.push(p.data.name1.value); return { errcode: 0 } }
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const items = [
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makeAnniv('B1', 'uB', '提前的', 'high', 3, 3), // 提前事件（daysUntil=3=remindDays）
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makeAnniv('B2', 'uB', '当天低', 'low', 0, 3), // 当天事件
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makeAnniv('B3', 'uB', '当天高', 'high', 0, 3) // 当天事件，重要程度更高
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]
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const r = await reminder.runForUser('uB', items, TODAY)
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wx.sendSubscribeMessage = restore
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try {
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const items = [
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makeAnniv('P1', 'uP1', '甲', 'high', 0, 3),
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makeAnniv('P2', 'uP1', '乙', 'medium', 0, 3),
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makeAnniv('P3', 'uP1', '丙', 'low', 0, 3)
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]
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const r = await reminder.runForUser('uP1', items, TODAY)
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assert.strictEqual(r.ok, 1)
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assert.strictEqual(r.skipped, 2)
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assert.deepStrictEqual(sent, ['当天高'], '应当只发出当天且最重要的那条')
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assert.strictEqual(r.ok, 3, '探针证实微信侧有额度后，剩下两条也应照常发出')
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assert.strictEqual(r.skipped, 0)
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assert.deepStrictEqual(sent, ['甲', '乙', '丙'])
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assert.strictEqual(quota.getBalance('uP1'), 0, '探针成功不凭空补余额，账面保持保守的 0')
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const row = db.prepare('SELECT sentTotal FROM subscribe_quota WHERE openid = ?').get('uP1')
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assert.strictEqual(row.sentTotal, 3, 'sentTotal 要如实记录每一次成功发送，便于排查')
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} finally {
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wx.sendSubscribeMessage = restore
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}
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})
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test('余额为 0 时不发任何请求', async () => {
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test('记账余额为 0 且微信侧确实没额度：探针被 43101 拒绝后立即中止', async () => {
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resetLogs()
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const WX_ERROR_MESSAGE = '发送订阅消息失败: {"errcode":43101}'
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let called = 0
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const restore = wx.sendSubscribeMessage
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wx.sendSubscribeMessage = async () => {
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called++
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const e = new Error(WX_ERROR_MESSAGE)
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e.errcode = 43101
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throw e
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}
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try {
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const items = [
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makeAnniv('Q1', 'uP2', '甲', 'high', 0, 3),
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makeAnniv('Q2', 'uP2', '乙', 'high', 0, 3),
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makeAnniv('Q3', 'uP2', '丙', 'high', 0, 3)
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]
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const r = await reminder.runForUser('uP2', items, TODAY)
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assert.strictEqual(called, 1, '只探一次，被拒后不该继续打请求')
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assert.strictEqual(r.ok, 0)
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assert.strictEqual(r.skipped, 3, '含探针那条在内全部计为 skipped')
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assert.strictEqual(quota.getBalance('uP2'), 0)
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const q1 = db.prepare("SELECT * FROM remind_logs WHERE anniversaryId = 'Q1'").get()
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const q2 = db.prepare("SELECT * FROM remind_logs WHERE anniversaryId = 'Q2'").get()
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assert.strictEqual(q1.error, WX_ERROR_MESSAGE, '探针那条真打了请求，应保留微信原始错误信息')
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assert.strictEqual(q2.error, 'quota_exhausted', '后续条目根本没发请求，记兜底文案')
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} finally {
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wx.sendSubscribeMessage = restore
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}
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})
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test('探针遇非额度错误：记 failed、不动余额、本轮不再重复探', async () => {
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resetLogs()
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let called = 0
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const restore = wx.sendSubscribeMessage
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wx.sendSubscribeMessage = async () => { called++; return { errcode: 0 } }
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wx.sendSubscribeMessage = async () => {
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called++
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const e = new Error('网络炸了')
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e.errcode = 40003
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throw e
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}
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const items = [makeAnniv('C1', 'uC', '丙', 'high', 0, 3)]
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const r = await reminder.runForUser('uC', items, TODAY)
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wx.sendSubscribeMessage = restore
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try {
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const items = [
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makeAnniv('R1', 'uP3', '甲', 'high', 0, 3),
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makeAnniv('R2', 'uP3', '乙', 'high', 0, 3),
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makeAnniv('R3', 'uP3', '丙', 'high', 0, 3)
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]
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const r = await reminder.runForUser('uP3', items, TODAY)
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assert.strictEqual(called, 0, '没额度就不该打请求')
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assert.strictEqual(r.skipped, 1)
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// 网络/配置错误什么都没证明，既不能当作「有额度」继续发，也不该反复赌请求
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assert.strictEqual(called, 1, '探针机会用掉就没了，不该对同一个用户反复重试')
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assert.strictEqual(r.fail, 1, '探针那条记 failed，不是 skipped')
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assert.strictEqual(r.skipped, 2)
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assert.strictEqual(quota.getBalance('uP3'), 0, '非额度错误不动余额')
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const r1 = db.prepare("SELECT * FROM remind_logs WHERE anniversaryId = 'R1'").get()
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assert.strictEqual(r1.status, 'failed')
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assert.strictEqual(r1.error, '网络炸了')
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} finally {
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wx.sendSubscribeMessage = restore
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}
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})
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test('遇到 43101 立即归零并中止本用户剩余发送', async () => {
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@@ -145,11 +242,26 @@ test('非额度类错误只记 failed，不中止后续发送，也不动余额'
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test('skipped 会写入 remind_logs 便于排查', async () => {
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resetLogs()
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const items = [makeAnniv('F1', 'uF', '甲', 'high', 0, 3)]
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await reminder.runForUser('uF', items, TODAY)
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const row = db.prepare("SELECT * FROM remind_logs WHERE status = 'skipped'").get()
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assert.ok(row, '应写入 skipped 日志')
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assert.strictEqual(row.error, 'quota_exhausted')
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// 余额为 0 时第一条会被当探针发出去，所以要放两条，第二条才是「压根没发请求」的 skipped
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const restore = wx.sendSubscribeMessage
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wx.sendSubscribeMessage = async () => {
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const e = new Error('发送订阅消息失败')
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e.errcode = 43101
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throw e
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}
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try {
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const items = [
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makeAnniv('F1', 'uF', '甲', 'high', 0, 3),
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makeAnniv('F2', 'uF', '乙', 'high', 0, 3)
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]
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await reminder.runForUser('uF', items, TODAY)
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const row = db.prepare("SELECT * FROM remind_logs WHERE anniversaryId = 'F2'").get()
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assert.ok(row, '应写入 skipped 日志')
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assert.strictEqual(row.status, 'skipped')
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assert.strictEqual(row.error, 'quota_exhausted')
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} finally {
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wx.sendSubscribeMessage = restore
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}
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})
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// runOnce 是从数据库读数据的（SELECT * FROM anniversaries WHERE remindEnabled = 1），
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@@ -170,23 +282,34 @@ test('runOnce 按 openid 分组结算，各用户额度互不影响', async () =
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db.prepare('DELETE FROM anniversaries').run()
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quota.grant('uG', 5) // uG 有额度
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// uH 不 grant，余额保持 0
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// uH 不 grant，余额保持 0，且微信侧也确实没额度（下面 mock 里对 uH 回 43101）
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insertAnniv('G1', 'uG', '甲', 0, 3) // 今天到期
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insertAnniv('H1', 'uH', '乙', 0, 3) // 今天到期
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let called = 0
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const attempts = []
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const restore = wx.sendSubscribeMessage
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wx.sendSubscribeMessage = async () => { called++; return { errcode: 0 } }
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wx.sendSubscribeMessage = async (p) => {
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attempts.push(p.touser)
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if (p.touser === 'uH') {
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const e = new Error('发送订阅消息失败')
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e.errcode = 43101
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throw e
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}
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return { errcode: 0 }
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}
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const r = await reminder.runOnce()
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wx.sendSubscribeMessage = restore
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try {
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const r = await reminder.runOnce()
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assert.strictEqual(r.total, 2)
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assert.strictEqual(r.ok, 1, '有额度的 uG 应正常发出')
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assert.strictEqual(r.skipped, 1, '没额度的 uH 应被跳过')
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assert.strictEqual(r.fail, 0)
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assert.strictEqual(called, 1, '没额度的用户不该真的发起请求，两用户不能互相借额度')
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assert.strictEqual(quota.getBalance('uG'), 4, 'uG 消费后余额正确减少')
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assert.strictEqual(quota.getBalance('uH'), 0, 'uH 的余额不受 uG 影响')
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assert.strictEqual(r.total, 2)
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assert.strictEqual(r.ok, 1, '有额度的 uG 应正常发出')
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assert.strictEqual(r.skipped, 1, '微信侧确认没额度的 uH 应被跳过')
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assert.strictEqual(r.fail, 0)
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assert.deepStrictEqual(attempts, ['uG', 'uH'], 'uH 只有一次探针请求，不能借用 uG 的额度')
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assert.strictEqual(quota.getBalance('uG'), 4, 'uG 消费后余额正确减少')
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assert.strictEqual(quota.getBalance('uH'), 0, 'uH 的余额不受 uG 影响')
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} finally {
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wx.sendSubscribeMessage = restore
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}
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})
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