Testing HTTP requests in node.js with express

I have a simple authentication system I've made with a few post/get/dels on '/session' using express. I'd like to test this, but I can't seem to find a good easy way to simply test http.sendPut('/session', {data}) from the server. Does anyone have suggestions for a library to use?

I'm using Mocha/should for my tests, if that helps.

Here is my super simple auth-thingy that I want to test (it hooks into some other things):

//Login
app.post("/session", function(req, res) {
  if (req.body.username === "admin" && req.body.password === "admin") {
    req.session.user = "user";
    res.send("Successfully logged in!");
  } else {
    res.send(403, "Invalid username or password.");
  }
});
//Logout
app.del("/session", function(req, res) {
  req.session.user = null;
  res.send("Successfully logged out.");
});
//Am I logged in? Check for the client
app.get("/session", function(req, res) {
  if (req.session.user) {
    res.send(req.session.user);
  } else {
    res.send(403, "You are not logged in.");
  }
});

Thanks.