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test: fix flaky test-net-error-twice

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On Windows there can exist some race condition where the
notification of the client's `socket.destroy()` isn't received
before the server writes to the socket. This race condition was
more evident/reproducible on a single core system.

This commit fixes the flakiness by waiting until the server's
connection event handler has been called to destroy the client
socket and perform the server socket write.

Fixes: https://github.com/nodejs/node/issues/4057
PR-URL: https://github.com/nodejs/node/pull/4342
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: João Reis <reis@janeasystems.com>
This commit is contained in:
Brian White 2015-12-18 01:35:23 -05:00
parent a2c1799a5b
commit 4b0b991bf5
1 changed files with 18 additions and 7 deletions
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25
test/parallel/test-net-error-twice.js
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@ -1,16 +1,24 @@
'use strict';
var common = require('../common');
var assert = require('assert');
var net = require('net');
const common = require('../common');
const assert = require('assert');
const net = require('net');
var buf = new Buffer(10 * 1024 * 1024);
const buf = new Buffer(10 * 1024 * 1024);
buf.fill(0x62);
var errs = [];
const errs = [];
var clientSocket;
var serverSocket;
function ready() {
if (clientSocket && serverSocket) {
clientSocket.destroy();
serverSocket.write(buf);
}
}
var srv = net.createServer(function onConnection(conn) {
conn.write(buf);
conn.on('error', function(err) {
errs.push(err);
if (errs.length > 1 && errs[0] === errs[1])
@ -19,11 +27,14 @@ var srv = net.createServer(function onConnection(conn) {
conn.on('close', function() {
srv.unref();
});
serverSocket = conn;
ready();
}).listen(common.PORT, function() {
var client = net.connect({ port: common.PORT });
client.on('connect', function() {
client.destroy();
clientSocket = client;
ready();
});
});