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test: add cluster EADDRINUSE test

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Check that having a worker bind to a port that's already taken doesn't
leave the master process in a confused state. Releasing the port and
trying again should Just Work[TM].
This commit is contained in:
Ben Noordhuis 2013-02-06 15:10:48 +01:00
parent 01ee551e70
commit b58efe7709
1 changed files with 63 additions and 0 deletions
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test/simple/test-cluster-eaddrinuse.js Normal file
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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// Check that having a worker bind to a port that's already taken doesn't
// leave the master process in a confused state. Releasing the port and
// trying again should Just Work[TM].
var common = require('../common');
var assert = require('assert');
var cluster = require('cluster');
var fork = require('child_process').fork;
var net = require('net');
var id = '' + process.argv[2];
if (id === 'undefined') {
var server = net.createServer(assert.fail);
server.listen(common.PORT, function() {
var worker = fork(__filename, ['worker']);
worker.on('message', function(msg) {
if (msg !== 'stop-listening') return;
server.close(function() {
worker.send('stopped-listening');
});
});
});
}
else if (id === 'worker') {
var server = net.createServer(assert.fail);
server.listen(common.PORT, assert.fail);
server.on('error', common.mustCall(function(e) {
assert(e.code, 'EADDRINUSE');
process.send('stop-listening');
process.once('message', function(msg) {
if (msg !== 'stopped-listening') return;
server = net.createServer(assert.fail);
server.listen(common.PORT, common.mustCall(function() {
server.close();
}));
});
}));
}
else {
assert(0); // Bad argument.
}