'use strict'; const common = require('../common'); const assert = require('assert'); const path = require('path'); const fs = require('fs'); const file = path.join(common.tmpDir, 'write.txt'); common.refreshTmpDir(); { const stream = fs.WriteStream(file); const _fs_close = fs.close; fs.close = function(fd) { assert.ok(fd, 'fs.close must not be called without an undefined fd.'); fs.close = _fs_close; }; stream.destroy(); } { const stream = fs.createWriteStream(file); stream.on('drain', function() { common.fail('\'drain\' event must not be emitted before ' + 'stream.write() has been called at least once.'); }); stream.destroy(); }