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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';
const common = require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const tmpdir = require('../common/tmpdir');
let watchSeenOne = 0;
let watchSeenTwo = 0;
let watchSeenThree = 0;
let watchSeenFour = 0;
const testDir = tmpdir.path;
const filenameOne = 'watch.txt';
const filepathOne = path.join(testDir, filenameOne);
const filenameTwo = 'hasOwnProperty';
const filepathTwo = filenameTwo;
const filepathTwoAbs = path.join(testDir, filenameTwo);
const filenameThree = 'charm'; // Because the third time is
const filenameFour = 'get';
process.on('exit', function() {
assert.strictEqual(watchSeenOne, 1);
assert.strictEqual(watchSeenTwo, 2);
assert.strictEqual(watchSeenThree, 1);
assert.strictEqual(watchSeenFour, 1);
});
tmpdir.refresh();
fs.writeFileSync(filepathOne, 'hello');
assert.throws(
() => { fs.watchFile(filepathOne); },
{ code: 'ERR_INVALID_ARG_TYPE' }
);
// Does not throw.
fs.watchFile(filepathOne, function() {
fs.unwatchFile(filepathOne);
++watchSeenOne;
});
setTimeout(function() {
fs.writeFileSync(filepathOne, 'world');
}, 1000);
process.chdir(testDir);
fs.writeFileSync(filepathTwoAbs, 'howdy');
assert.throws(
() => { fs.watchFile(filepathTwo); },
{ code: 'ERR_INVALID_ARG_TYPE' }
);
{ // Does not throw.
function a() {
fs.unwatchFile(filepathTwo, a);
++watchSeenTwo;
}
function b() {
fs.unwatchFile(filepathTwo, b);
++watchSeenTwo;
}
fs.watchFile(filepathTwo, a);
fs.watchFile(filepathTwo, b);
}
setTimeout(function() {
fs.writeFileSync(filepathTwoAbs, 'pardner');
}, 1000);
{ // Does not throw.
function b() {
fs.unwatchFile(filenameThree, b);
++watchSeenThree;
}
const uncalledListener = common.mustNotCall();
fs.watchFile(filenameThree, uncalledListener);
fs.watchFile(filenameThree, b);
fs.unwatchFile(filenameThree, uncalledListener);
}
setTimeout(function() {
fs.writeFileSync(filenameThree, 'pardner');
}, 1000);
setTimeout(function() {
fs.writeFileSync(filenameFour, 'hey');
}, 200);
setTimeout(function() {
fs.writeFileSync(filenameFour, 'hey');
}, 500);
{ // Does not throw.
function a() {
++watchSeenFour;
assert.strictEqual(watchSeenFour, 1);
fs.unwatchFile(`.${path.sep}${filenameFour}`, a);
}
fs.watchFile(filenameFour, a);
}
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