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// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
'use strict';const common = require('../common');
const assert = require('assert');const fs = require('fs');const path = require('path');
const tmpdir = require('../common/tmpdir');
// Basic usage tests.assert.throws(  () => {    fs.watchFile('./some-file');  },  {    code: 'ERR_INVALID_ARG_TYPE',    name: 'TypeError'  });
assert.throws(  () => {    fs.watchFile('./another-file', {}, 'bad listener');  },  {    code: 'ERR_INVALID_ARG_TYPE',    name: 'TypeError'  });
assert.throws(() => {  fs.watchFile(new Object(), common.mustNotCall());}, { code: 'ERR_INVALID_ARG_TYPE', name: 'TypeError' });
const enoentFile = path.join(tmpdir.path, 'non-existent-file');const expectedStatObject = new fs.Stats(  0,                                        // dev  0,                                        // mode  0,                                        // nlink  0,                                        // uid  0,                                        // gid  0,                                        // rdev  0,                                        // blksize  0,                                        // ino  0,                                        // size  0,                                        // blocks  Date.UTC(1970, 0, 1, 0, 0, 0),            // atime  Date.UTC(1970, 0, 1, 0, 0, 0),            // mtime  Date.UTC(1970, 0, 1, 0, 0, 0),            // ctime  Date.UTC(1970, 0, 1, 0, 0, 0)             // birthtime);
tmpdir.refresh();
// If the file initially didn't exist, and gets created at a later point of// time, the callback should be invoked again with proper values in stat objectlet fileExists = false;
const watcher =  fs.watchFile(enoentFile, { interval: 0 }, common.mustCall((curr, prev) => {    if (!fileExists) {      // If the file does not exist, all the fields should be zero and the date      // fields should be UNIX EPOCH time      assert.deepStrictEqual(curr, expectedStatObject);      assert.deepStrictEqual(prev, expectedStatObject);      // Create the file now, so that the callback will be called back once the      // event loop notices it.      fs.closeSync(fs.openSync(enoentFile, 'w'));      fileExists = true;    } else {      // If the ino (inode) value is greater than zero, it means that the file      // is present in the filesystem and it has a valid inode number.      assert(curr.ino > 0);      // As the file just got created, previous ino value should be lesser than      // or equal to zero (non-existent file).      assert(prev.ino <= 0);      // Stop watching the file      fs.unwatchFile(enoentFile);      watcher.stop();  // Stopping a stopped watcher should be a noop    }  }, 2));
// 'stop' should only be emitted once - stopping a stopped watcher should// not trigger a 'stop' event.watcher.on('stop', common.mustCall(function onStop() {}));
// Watch events should callback with a filename on supported systems.// Omitting AIX. It works but not reliably.if (common.isLinux || common.isOSX || common.isWindows) {  const dir = path.join(tmpdir.path, 'watch');
  fs.mkdir(dir, common.mustCall(function(err) {    if (err) assert.fail(err);
    fs.watch(dir, common.mustCall(function(eventType, filename) {      clearInterval(interval);      this._handle.close();      assert.strictEqual(filename, 'foo.txt');    }));
    const interval = setInterval(() => {      fs.writeFile(path.join(dir, 'foo.txt'), 'foo', common.mustCall((err) => {        if (err) assert.fail(err);      }));    }, 1);  }));}