253 lines
7.1 KiB
TypeScript
253 lines
7.1 KiB
TypeScript
import assert from 'node:assert/strict'
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import { test } from 'node:test'
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import { submissionIntent } from '../src/api/submissionIntent.ts'
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import { boundedPoll } from '../src/api/polling.ts'
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import { ApiError, boundedFetch, unwrap } from '../src/api/transport.ts'
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function memory() {
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const values = new Map<string, string>()
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return {
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getItem: (key: string) => values.get(key) ?? null,
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setItem: (key: string, value: string) => {
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values.set(key, value)
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},
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}
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}
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const input = {
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problem_version_id: 'version',
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language: 'c17' as const,
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source: 'synthetic ordinary text, never executed',
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}
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const flush = async () => {
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await new Promise<void>((resolve) => setImmediate(resolve))
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}
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test('Python and Java retries preserve UUID and language/content changes create a new intent', async () => {
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const storage = memory()
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const keys: string[] = []
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for (const language of ['python313', 'java21'] as const) {
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const managed = { ...input, language }
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await assert.rejects(
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submissionIntent(storage, 'owner').submit(managed, async (key) => {
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keys.push(key)
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throw new Error('uncertain delivery')
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}),
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)
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const failedKey = keys.at(-1)
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await submissionIntent(storage, 'owner').submit(managed, async (key) => {
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assert.equal(key, failedKey)
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return 'saved-' + language
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})
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}
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assert.notEqual(keys[0], keys[1])
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await submissionIntent(storage, 'owner').submit(
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{ ...input, language: 'java21', source: 'changed Java' },
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async (key) => {
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assert.notEqual(key, keys[1])
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return 'changed-id'
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},
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)
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})
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test('timeout and reload reuse persisted key; double click has one flight; content and owner change key', async () => {
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const storage = memory()
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const keys: string[] = []
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const intent = submissionIntent(storage, 'owner-a')
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let respond: (id: string) => void = () => {}
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let sent: () => void = () => {}
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const sending = new Promise<void>((resolve) => {
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sent = resolve
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})
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const send = async (key: string) => {
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keys.push(key)
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sent()
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return new Promise<string>((resolve) => {
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respond = resolve
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})
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}
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const a = intent.submit(input, send)
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const b = intent.submit(input, send)
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assert.equal(a, b)
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await sending
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assert.equal(keys.length, 1)
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respond('real-id')
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assert.equal(await a, 'real-id')
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assert.equal(await submissionIntent(storage, 'owner-a').submit(input, send), 'real-id')
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const uncertain = { ...input, source: 'changed synthetic content' }
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await assert.rejects(
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intent.submit(uncertain, async (key) => {
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keys.push(key)
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throw new Error('timeout')
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}),
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)
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const failedKey = keys.at(-1)
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assert.notEqual(keys[0], failedKey)
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await submissionIntent(storage, 'owner-a').submit(uncertain, async (key) => {
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assert.equal(key, failedKey)
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return 'confirmed-id'
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})
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await submissionIntent(storage, 'owner-b').submit(uncertain, async (key) => {
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assert.notEqual(key, failedKey)
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return 'different-owner-id'
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})
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})
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test('unavailable intent storage or oversized UTF-8 source fails before POST', async () => {
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let calls = 0
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const send = async () => {
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calls++
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return 'id'
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}
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const denied = {
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getItem: () => null,
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setItem: () => {
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throw new Error('denied')
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},
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}
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await assert.rejects(submissionIntent(denied, 'a').submit(input, send))
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await assert.rejects(
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submissionIntent(memory(), 'a').submit({ ...input, source: 'é'.repeat(131073) }, send),
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)
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assert.equal(calls, 0)
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})
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test('terminal response stops polling; failure stops until manual retry; requests and time are bounded', async (t) => {
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t.mock.timers.enable({ apis: ['setTimeout', 'Date'] })
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const results: number[] = []
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let calls = 0,
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errors = 0,
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exhausted = 0
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let fail = false
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const poll = boundedPoll({
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load: async () => {
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calls++
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if (fail) throw new ApiError(401)
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return calls
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},
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terminal: (n) => n === 2,
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result: (n) => results.push(n),
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error: () => {
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errors++
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},
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exhausted: () => {
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exhausted++
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},
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interval: 10,
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maxRequests: 2,
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maxTime: 100,
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})
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poll.start()
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await flush()
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t.mock.timers.tick(10)
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await flush()
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assert.deepEqual(results, [1, 2])
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t.mock.timers.tick(1000)
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await flush()
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assert.equal(calls, 2)
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fail = true
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poll.start()
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await flush()
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t.mock.timers.tick(100)
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await flush()
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assert.equal(calls, 3)
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assert.equal(errors, 1)
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fail = false
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poll.start()
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await flush()
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t.mock.timers.tick(10)
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await flush()
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t.mock.timers.tick(10)
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await flush()
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assert.equal(calls, 5)
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assert.equal(exhausted, 1)
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poll.start()
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await flush()
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poll.visible(false)
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t.mock.timers.tick(1000)
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poll.visible(true)
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await flush()
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assert.equal(exhausted, 2)
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poll.dispose()
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})
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test('hidden and unmounted requests abort; stale responses cannot replace current route data', async () => {
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const pending: { signal: AbortSignal; done: (v: string) => void }[] = []
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const results: string[] = []
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const poll = boundedPoll({
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load: (signal) =>
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new Promise<string>((done) => {
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pending.push({ signal, done })
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}),
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terminal: () => true,
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result: (n) => results.push(n),
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error: () => assert.fail('stale error'),
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exhausted: () => {},
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})
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poll.start()
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poll.visible(false)
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assert.equal(pending[0]!.signal.aborted, true)
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poll.visible(true)
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pending[0]!.done('stale')
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await flush()
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assert.deepEqual(results, [])
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pending[1]!.done('current')
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await flush()
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assert.deepEqual(results, ['current'])
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poll.start()
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poll.dispose()
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assert.equal(pending[2]!.signal.aborted, true)
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pending[2]!.done('unmounted')
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await flush()
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assert.deepEqual(results, ['current'])
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})
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test('transport expires identity on401, preserves cancellation and never fills failure with preview data', async () => {
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let expired = 0
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const fetcher = boundedFetch(
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async (request) => {
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assert.equal((request as Request).credentials, 'same-origin')
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assert.equal((request as Request).cache, 'no-store')
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return new Response('{}', { status: 401 })
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},
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() => {
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expired++
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},
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)
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const response = await fetcher('http://localhost/api/v1/auth/me')
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assert.equal(expired, 1)
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assert.throws(() => unwrap({ response, data: {} }), ApiError)
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assert.throws(() => unwrap({ response: new Response('', { status: 200 }) }))
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const offline = boundedFetch(
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async () => {
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throw new Error('synthetic private detail')
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},
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() => {},
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)
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await assert.rejects(offline('http://localhost/api'), /网络中断/)
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})
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test('an old401 cannot expire a newly authenticated session', async () => {
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let version = 0,
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expired = 0
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let complete: (response: Response) => void = () => {}
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const transport = boundedFetch(
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async () =>
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new Promise<Response>((resolve) => {
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complete = resolve
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}),
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() => {
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expired++
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},
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() => version,
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)
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const old = transport('http://localhost/api/v1/auth/me')
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version++ // A later login owns the browser identity.
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complete(new Response('{}', { status: 401 }))
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await old
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assert.equal(expired, 0)
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const current = transport('http://localhost/api/v1/auth/me')
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complete(new Response('{}', { status: 401 }))
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await current
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assert.equal(expired, 1)
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})
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