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nodejs/test/parallel/test-fs-watch-recursive-assert-leaks.js
Joyee Cheung 7f3852c376
test: ensure delay in recursive fs watch tests
The recursive fs watch tests that mutate the watched folder
immediately after fs.watch() returns are all flaking in the
CI while the others that mutate the folder with a bit of delay
aren't flaking. So this patch adds a bit of delay for the rest
of the tests to deflake them.

PR-URL: https://github.com/nodejs/node/pull/51842
Refs: https://github.com/nodejs/reliability/issues/790
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
2024-02-25 07:21:50 +01:00

51 lines
1.6 KiB
JavaScript

'use strict';
const common = require('../common');
const { setTimeout } = require('timers/promises');
if (common.isIBMi)
common.skip('IBMi does not support `fs.watch()`');
// fs-watch on folders have limited capability in AIX.
// The testcase makes use of folder watching, and causes
// hang. This behavior is documented. Skip this for AIX.
if (common.isAIX)
common.skip('folder watch capability is limited in AIX.');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const tmpdir = require('../common/tmpdir');
const testDir = tmpdir.path;
tmpdir.refresh();
// Assert recursive watch does not leak handles
const rootDirectory = fs.mkdtempSync(testDir + path.sep);
const testDirectory = path.join(rootDirectory, 'test-7');
const filePath = path.join(testDirectory, 'only-file.txt');
fs.mkdirSync(testDirectory);
let watcherClosed = false;
const watcher = fs.watch(testDirectory, { recursive: true });
watcher.on('change', common.mustCallAtLeast(async (event, filename) => {
await setTimeout(common.platformTimeout(100));
if (filename === path.basename(filePath)) {
watcher.close();
watcherClosed = true;
}
await setTimeout(common.platformTimeout(100));
assert(!process._getActiveHandles().some((handle) => handle.constructor.name === 'StatWatcher'));
}));
process.on('exit', function() {
assert(watcherClosed, 'watcher Object was not closed');
});
// Do the write with a delay to ensure that the OS is ready to notify us.
(async () => {
await setTimeout(200);
fs.writeFileSync(filePath, 'content');
})().then(common.mustCall());