| // 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'); |
| |
| 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); |
| } |