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'use strict';
// This test is a bit more complicated than it ideally needs to be to work
// around issues on OS X and SmartOS.
//
// On OS X, watch events are subject to peculiar timing oddities such that an
// event might fire out of order. The synchronous refreshing of the tmp
// directory might trigger an event on the watchers that are instantiated after
// it!
//
// On SmartOS, the watch events fire but the filename is null.
const common = require('../common');
// 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 fs = require('fs');
const path = require('path');
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
const fn = '新建文夹件.txt';
const a = path.join(tmpdir.path, fn);
const watchers = new Set();
function registerWatcher(watcher) {
watchers.add(watcher);
}
function unregisterWatcher(watcher) {
watcher.close();
watchers.delete(watcher);
if (watchers.size === 0) {
clearInterval(interval);
}
}
{
// Test that using the `encoding` option has the expected result.
const watcher = fs.watch(
tmpdir.path,
{ encoding: 'hex' },
(event, filename) => {
if (['e696b0e5bbbae69687e5a4b9e4bbb62e747874', null].includes(filename))
done(watcher);
}
);
registerWatcher(watcher);
}
{
// Test that in absence of `encoding` option has the expected result.
const watcher = fs.watch(
tmpdir.path,
(event, filename) => {
if ([fn, null].includes(filename))
done(watcher);
}
);
registerWatcher(watcher);
}
{
// Test that using the `encoding` option has the expected result.
const watcher = fs.watch(
tmpdir.path,
{ encoding: 'buffer' },
(event, filename) => {
if (filename instanceof Buffer && filename.toString('utf8') === fn)
done(watcher);
else if (filename === null)
done(watcher);
}
);
registerWatcher(watcher);
}
const done = common.mustCall(unregisterWatcher, watchers.size);
// OS X and perhaps other systems can have surprising race conditions with
// file events. So repeat the operation in case it is missed the first time.
const interval = setInterval(() => {
const fd = fs.openSync(a, 'w+');
fs.closeSync(fd);
fs.unlinkSync(a);
}, common.platformTimeout(100));