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net: don't throw on bytesWritten access #3305

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net: don't throw on bytesWritten access #3305

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3 changes: 3 additions & 0 deletions lib/net.js
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Original file line number Diff line number Diff line change
Expand Up @@ -727,6 +727,9 @@ Socket.prototype.__defineGetter__('bytesWritten', function() {
data = this._pendingData,
encoding = this._pendingEncoding;

if (!state)
return undefined;

state.getBuffer().forEach(function(el) {
if (el.chunk instanceof Buffer)
bytes += el.chunk.length;
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16 changes: 16 additions & 0 deletions test/parallel/test-net-access-byteswritten.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,16 @@
'use strict';

require('../common');
const assert = require('assert');
const net = require('net');
const tls = require('tls');
const tty = require('tty');

// Check that the bytesWritten getter doesn't crash if object isn't
// constructed.
assert.strictEqual(net.Socket.prototype.bytesWritten, undefined);
assert.strictEqual(tls.TLSSocket.super_.prototype.bytesWritten, undefined);
assert.strictEqual(tls.TLSSocket.prototype.bytesWritten, undefined);
assert.strictEqual(tty.ReadStream.super_.prototype.bytesWritten, undefined);
assert.strictEqual(tty.ReadStream.prototype.bytesWritten, undefined);
assert.strictEqual(tty.WriteStream.prototype.bytesWritten, undefined);