1var a = require.resolve('buffer/').replace(process.cwd(), '$CWD');
2var b = require('resolve').sync('buffer/', { preserveSymlinks: true }).replace(process.cwd(), '$CWD');
3var c = require('resolve').sync('buffer/', { preserveSymlinks: false }).replace(process.cwd(), '$CWD');
4
5console.log(a, ': require.resolve, preserveSymlinks ' + (process.execArgv.indexOf('preserve-symlinks') > -1 ? 'true' : 'false'));
6console.log(b, ': preserveSymlinks true');
7console.log(c, ': preserveSymlinks false');
8
9if (a !== b && a !== c) {
10    throw 'sync: no match';
11}
12console.log('sync: success! a matched either b or c\n');
13