| // 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() { |
| fs.unlinkSync(filepathOne); |
| fs.unlinkSync(filepathTwoAbs); |
| fs.unlinkSync(filenameThree); |
| fs.unlinkSync(filenameFour); |
| assert.strictEqual(watchSeenOne, 1); |
| assert.strictEqual(watchSeenTwo, 2); |
| assert.strictEqual(watchSeenThree, 1); |
| assert.strictEqual(watchSeenFour, 1); |
| }); |
| |
| |
| 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); |
| } |