82 lines
2.0 KiB
JavaScript
82 lines
2.0 KiB
JavaScript
import assert from 'node:assert/strict';
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import test from 'node:test';
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import { replaceFileWithRetry } from './windows-file-replace.mjs';
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const fileError = (code = 'EPERM') => Object.assign(new Error(code), { code });
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test('retries transient Windows rename failures until replacement succeeds', async () => {
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const delays = [];
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let attempts = 0;
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await replaceFileWithRetry('settings.tmp', 'settings.json', {
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platform: 'win32',
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rename: async () => {
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attempts += 1;
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if (attempts < 4) throw fileError();
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},
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wait: async (delay) => delays.push(delay),
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});
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assert.equal(attempts, 4);
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assert.deepEqual(delays, [50, 100, 200]);
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});
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test('does not retry rename errors that are not transient Windows locks', async () => {
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let attempts = 0;
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const error = fileError('ENOENT');
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await assert.rejects(
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replaceFileWithRetry('settings.tmp', 'settings.json', {
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platform: 'win32',
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rename: async () => {
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attempts += 1;
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throw error;
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},
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wait: async () => assert.fail('unexpected wait'),
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}),
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error,
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);
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assert.equal(attempts, 1);
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});
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test('does not retry transient error codes outside Windows', async () => {
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let attempts = 0;
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const error = fileError();
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await assert.rejects(
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replaceFileWithRetry('settings.tmp', 'settings.json', {
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platform: 'linux',
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rename: async () => {
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attempts += 1;
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throw error;
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},
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wait: async () => assert.fail('unexpected wait'),
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}),
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error,
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);
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assert.equal(attempts, 1);
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});
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test('returns the final Windows lock error after the retry window', async () => {
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const delays = [];
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let attempts = 0;
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await assert.rejects(
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replaceFileWithRetry('settings.tmp', 'settings.json', {
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platform: 'win32',
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rename: async () => {
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attempts += 1;
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throw fileError();
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},
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wait: async (delay) => delays.push(delay),
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}),
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{ code: 'EPERM' },
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);
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assert.equal(attempts, 8);
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assert.deepEqual(delays, [50, 100, 200, 400, 800, 1_000, 1_000]);
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});
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