var path = require('path'); var test = require('tape'); var Buffer = require('safe-buffer').Buffer; var Writable = require('..').Writable; var inherits = require('inherits'); inherits(TestWritable, Writable); function TestWritable(opt) { if (!(this instanceof TestWritable)) return new TestWritable(opt); Writable.call(this, opt); this._written = []; } TestWritable.prototype._write = function(chunk, encoding, cb) { this._written.push(chunk); cb(); }; var buf = Buffer.from([ 88 ]); test('.writable writing ArrayBuffer', function(t) { var writable = new TestWritable(); writable.write(buf); writable.end(); t.equal(writable._written.length, 1); t.equal(writable._written[0].toString(), 'X') t.end() });