JefferyandClaude Opus 4.8
a0ef76d9d2
涵蓋 isRetryableStatus、deleteWithRetry(成功/暫時性重試/永久性即止/網路例外用盡) 與 runWithConcurrency(順序、併發上限、空陣列)。測試共 75 項全數通過。 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
98 lines
2.6 KiB
JavaScript
98 lines
2.6 KiB
JavaScript
import { test } from 'node:test'
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import assert from 'node:assert/strict'
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import {
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isRetryableStatus,
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deleteWithRetry,
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runWithConcurrency,
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} from '../delete-utils.js'
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const noSleep = () => Promise.resolve()
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test('isRetryableStatus 僅對暫時性狀態碼回傳 true', () => {
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for (const s of [429, 502, 503, 504]) assert.equal(isRetryableStatus(s), true)
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for (const s of [200, 204, 400, 401, 403, 404, 500]) {
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assert.equal(isRetryableStatus(s), false)
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}
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})
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test('deleteWithRetry 成功(204)時不重試', async () => {
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let calls = 0
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const client = {
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async deleteResource() {
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calls += 1
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return 204
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},
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}
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const result = await deleteWithRetry(client, 'u', { sleep: noSleep })
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assert.equal(result.status, 204)
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assert.equal(calls, 1)
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})
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test('deleteWithRetry 對暫時性錯誤重試後成功', async () => {
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const statuses = [503, 503, 204]
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let i = 0
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const client = {
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async deleteResource() {
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return statuses[i++]
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},
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}
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const result = await deleteWithRetry(client, 'u', { sleep: noSleep })
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assert.equal(result.status, 204)
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assert.equal(result.attempts, 3)
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})
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test('deleteWithRetry 對永久性錯誤(403)立即停止重試', async () => {
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let calls = 0
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const client = {
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async deleteResource() {
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calls += 1
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return 403
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},
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}
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const result = await deleteWithRetry(client, 'u', { sleep: noSleep })
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assert.equal(result.status, 403)
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assert.equal(calls, 1)
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})
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test('deleteWithRetry 對網路例外重試至次數用盡並回傳 error', async () => {
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let calls = 0
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const client = {
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async deleteResource() {
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calls += 1
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throw new Error('network down')
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},
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}
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const result = await deleteWithRetry(client, 'u', { attempts: 3, sleep: noSleep })
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assert.equal(result.status, 0)
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assert.match(result.error.message, /network down/)
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assert.equal(calls, 3)
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})
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test('runWithConcurrency 回傳對應輸入順序的結果', async () => {
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const items = [1, 2, 3, 4, 5]
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const out = await runWithConcurrency(items, async (n) => n * 2, 2)
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assert.deepEqual(out, [2, 4, 6, 8, 10])
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})
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test('runWithConcurrency 不超過併發上限', async () => {
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let active = 0
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let maxActive = 0
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const items = Array.from({ length: 10 }, (_, i) => i)
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await runWithConcurrency(
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items,
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async () => {
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active += 1
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maxActive = Math.max(maxActive, active)
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await Promise.resolve()
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active -= 1
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},
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3,
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)
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assert.ok(maxActive <= 3, `maxActive=${maxActive} 應 <= 3`)
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})
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test('runWithConcurrency 對空陣列回傳空陣列', async () => {
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const out = await runWithConcurrency([], async () => 1, 4)
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assert.deepEqual(out, [])
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})
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