[net2] port ping pong test

lib/net.js

@@ -392,6 +392,7 @@ function Server (listener) {
       debug('accept: ' + JSON.stringify(peerInfo));
       if (!peerInfo) return;
       var peer = new Socket(peerInfo);
+      peer.server = self;
       self.emit('connection', peer);
     }
   };

test/mjsunit/test-net-pingpong.js

@@ -0,0 +1,96 @@
+process.mixin(require("./common"));
+net = require("net");
+
+process.Buffer.prototype.toString = function () {
+  return this.utf8Slice(0, this.length);
+};
+
+var tests_run = 0;
+
+function pingPongTest (port, host, on_complete) {
+  var N = 1000;
+  var count = 0;
+  var sent_final_ping = false;
+
+  var server = net.createServer(function (socket) {
+    puts("connection: " + socket.remoteAddress);
+
+    assert.equal(true, socket.remoteAddress !== null);
+    assert.equal(true, socket.remoteAddress !== undefined);
+    assert.equal(server, socket.server);
+
+    socket.setNoDelay();
+    socket.timeout = 0;
+
+    socket.addListener("data", function (data) {
+      puts("server got: " + data);
+      assert.equal(true, socket.writable);
+      assert.equal(true, socket.readable);
+      assert.equal(true, count <= N);
+      if (/PING/.exec(data)) {
+        socket.send("PONG");
+      }
+    });
+
+    socket.addListener("eof", function () {
+      assert.equal(true, socket.writable);
+      assert.equal(false, socket.readable);
+      socket.close();
+    });
+
+    socket.addListener("close", function () {
+      assert.equal(false, socket.writable);
+      assert.equal(false, socket.readable);
+      socket.server.close();
+    });
+  });
+  server.listen(port, host);
+
+  var client = net.createConnection(port, host);
+
+  client.addListener("connect", function () {
+    assert.equal(true, client.readable);
+    assert.equal(true, client.writable);
+    client.send("PING");
+  });
+
+  client.addListener("data", function (data) {
+    puts("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.send("PING");
+    } else {
+      sent_final_ping = true;
+      client.send("PING");
+      client.close();
+    }
+  });
+
+  client.addListener("close", function () {
+    assert.equal(N+1, count);
+    assert.equal(true, sent_final_ping);
+    if (on_complete) on_complete();
+    tests_run += 1;
+  });
+}
+
+/* All are run at once, so run on different ports */
+pingPongTest(20989, "localhost");
+pingPongTest(20988, null);
+pingPongTest(20997, "::1");
+
+process.addListener("exit", function () {
+  assert.equal(3, tests_run);
+});