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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
const FILENAME = path.join(tmpdir.path, 'watch-me');
const TIMEOUT = 1300;
let nevents = 0;
try {
fs.unlinkSync(FILENAME);
} catch {
// swallow
}
fs.watchFile(FILENAME, { interval: TIMEOUT - 250 }, function(curr, prev) {
console.log([curr, prev]);
switch (++nevents) {
case 1:
assert.strictEqual(fs.existsSync(FILENAME), false);
break;
case 2:
case 3:
assert.strictEqual(fs.existsSync(FILENAME), true);
break;
case 4:
assert.strictEqual(fs.existsSync(FILENAME), false);
fs.unwatchFile(FILENAME);
break;
default:
assert(0);
}
});
process.on('exit', function() {
assert.strictEqual(nevents, 4);
});
setTimeout(createFile, TIMEOUT);
function createFile() {
console.log('creating file');
fs.writeFileSync(FILENAME, 'test');
setTimeout(touchFile, TIMEOUT);
}
function touchFile() {
console.log('touch file');
fs.writeFileSync(FILENAME, 'test');
setTimeout(removeFile, TIMEOUT);
}
function removeFile() {
console.log('remove file');
fs.unlinkSync(FILENAME);
}
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