'use strict'; const common = require('../common'); const fs = require('fs'); const path = require('path'); const tmpdir = require('../common/tmpdir'); const example = path.join(tmpdir.path, 'dummy'); tmpdir.refresh(); // Should not throw. fs.createWriteStream(example, undefined); fs.createWriteStream(example, null); fs.createWriteStream(example, 'utf8'); fs.createWriteStream(example, { encoding: 'utf8' }); const createWriteStreamErr = (path, opt) => { common.expectsError( () => { fs.createWriteStream(path, opt); }, { code: 'ERR_INVALID_ARG_TYPE', type: TypeError }); }; createWriteStreamErr(example, 123); createWriteStreamErr(example, 0); createWriteStreamErr(example, true); createWriteStreamErr(example, false);