node/test/pummel/test-net-timeout.js

common = require("../common");
assert = common.assert
net = require("net");
exchanges = 0;
starttime = null;
timeouttime = null;
timeout = 1000;

var echo_server = net.createServer(function (socket) {
  socket.setTimeout(timeout);

  socket.addListener("timeout", function () {
    console.log("server timeout");
    timeouttime = new Date;
    console.dir(timeouttime);
    socket.destroy();
  });

  socket.addListener("error", function (e) {
    throw new Error("Server side socket should not get error. We disconnect willingly.");
  })

  socket.addListener("data", function (d) {
    console.log(d);
    socket.write(d);
  });

  socket.addListener("end", function () {
    socket.end();
  });
});

echo_server.listen(common.PORT, function () {
  console.log("server listening at " + common.PORT);

  var client = net.createConnection(common.PORT);
  client.setEncoding("UTF8");
  client.setTimeout(0); // disable the timeout for client
  client.addListener("connect", function () {
    console.log("client connected.");
    client.write("hello\r\n");
  });

  client.addListener("data", function (chunk) {
    assert.equal("hello\r\n", chunk);
    if (exchanges++ < 5) {
      setTimeout(function () {
        console.log("client write 'hello'");
        client.write("hello\r\n");
      }, 500);

      if (exchanges == 5) {
        console.log("wait for timeout - should come in " + timeout + " ms");
        starttime = new Date;
        console.dir(starttime);
      }
    }
  });

  client.addListener("timeout", function () {
    throw new Error("client timeout - this shouldn't happen");
  });

  client.addListener("end", function () {
    console.log("client end");
    client.end();
  });

  client.addListener("close", function () {
    console.log("client disconnect");
    echo_server.close();
  });
});

process.addListener("exit", function () {
  assert.ok(starttime != null);
  assert.ok(timeouttime != null);

  diff = timeouttime - starttime;
  console.log("diff = " + diff);

  assert.ok(timeout < diff);

  // Allow for 800 milliseconds more
  assert.ok(diff < timeout + 800);
});