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var common = require('../common');
var assert = require('assert');
var net = require('net');
var tests_run = 0;
function pingPongTest(port, host) {
var N = 1000;
var count = 0;
var sentPongs = 0;
var sent_final_ping = false;
var server = net.createServer({ allowHalfOpen: true }, function(socket) {
console.log('connection: ' + socket.remoteAddress);
assert.equal(server, socket.server);
assert.equal(1, server.connections);
socket.setNoDelay();
socket.timeout = 0;
socket.setEncoding('utf8');
socket.addListener('data', function(data) {
// Since we never queue data (we're always waiting for the PING
// before sending a pong) the writeQueueSize should always be less
// than one message.
assert.ok(0 <= socket.bufferSize && socket.bufferSize <= 4);
console.log('server got: ' + data);
assert.equal(true, socket.writable);
assert.equal(true, socket.readable);
assert.equal(true, count <= N);
if (/PING/.exec(data)) {
socket.write('PONG', function () {
sentPongs++;
console.error('sent PONG');
});
}
});
socket.addListener('end', function() {
assert.equal(true, socket.writable); // because allowHalfOpen
assert.equal(false, socket.readable);
socket.end();
});
socket.addListener('error', function(e) {
throw e;
});
socket.addListener('close', function() {
console.log('server socket.endd');
assert.equal(false, socket.writable);
assert.equal(false, socket.readable);
socket.server.close();
});
});
server.listen(port, host, function() {
console.log('server listening on ' + port + ' ' + host);
var client = net.createConnection(port, host);
client.setEncoding('ascii');
client.addListener('connect', function() {
assert.equal(true, client.readable);
assert.equal(true, client.writable);
client.write('PING');
});
client.addListener('data', function(data) {
console.log('client got: ' + data);
assert.equal('PONG', data);
count += 1;
if (sent_final_ping) {
assert.equal(false, client.writable);
assert.equal(true, client.readable);
return;
} else {
assert.equal(true, client.writable);
assert.equal(true, client.readable);
}
if (count < N) {
client.write('PING');
} else {
sent_final_ping = true;
client.write('PING');
client.end();
}
});
client.addListener('close', function() {
console.log('client.end');
assert.equal(N + 1, count);
assert.equal(N + 1, sentPongs);
assert.equal(true, sent_final_ping);
tests_run += 1;
});
client.addListener('error', function(e) {
throw e;
});
});
}
/* All are run at once, so run on different ports */
pingPongTest(20989, 'localhost');
pingPongTest(20988);
pingPongTest(20997, '::1');
pingPongTest('/tmp/pingpong.sock');
process.addListener('exit', function() {
assert.equal(4, tests_run);
console.log('done');
});
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