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var assert = require('assert');
var common = require('../common');
var fork = require('child_process').fork;
var net = require('net');
// child
if (process.argv[2] === 'child') {
// Check that the 'disconnect' event is deferred to the next event loop tick.
var disconnect = process.disconnect;
process.disconnect = function() {
disconnect.apply(this, arguments);
// If the event is emitted synchronously, we're too late by now.
process.once('disconnect', common.mustCall(disconnectIsNotAsync));
// The funky function name makes it show up legible in mustCall errors.
function disconnectIsNotAsync() {}
};
var server = net.createServer();
server.on('connection', function(socket) {
socket.resume();
process.on('disconnect', function() {
socket.end((process.connected).toString());
});
// when the socket is closed, we will close the server
// allowing the process to self terminate
socket.on('end', function() {
server.close();
});
socket.write('ready');
});
// when the server is ready tell parent
server.on('listening', function() {
process.send('ready');
});
server.listen(common.PORT);
} else {
// testcase
var child = fork(process.argv[1], ['child']);
var childFlag = false;
var childSelfTerminate = false;
var parentEmit = false;
var parentFlag = false;
// when calling .disconnect the event should emit
// and the disconnected flag should be true.
child.on('disconnect', function() {
parentEmit = true;
parentFlag = child.connected;
});
// the process should also self terminate without using signals
child.on('exit', function() {
childSelfTerminate = true;
});
// when child is listening
child.on('message', function(msg) {
if (msg === 'ready') {
// connect to child using TCP to know if disconnect was emitted
var socket = net.connect(common.PORT);
socket.on('data', function(data) {
data = data.toString();
// ready to be disconnected
if (data === 'ready') {
child.disconnect();
assert.throws(child.disconnect.bind(child), Error);
return;
}
// disconnect is emitted
childFlag = (data === 'true');
});
}
});
process.on('exit', function() {
assert.equal(childFlag, false);
assert.equal(parentFlag, false);
assert.ok(childSelfTerminate);
assert.ok(parentEmit);
});
}
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