vows_callback.js

// HttpClient only calls 'success' once.
var respondsWith = function (code, body) {
  var context = {
    topic: function () {
      var req    = this.context.name.split(/ +/), // ["POST", "/"]
          method = req[0].toLowerCase(),          // "post"
          path   = req[1],                        // "/"
          self   = this;

      new HttpClient({
        method: method,
        url: HOST + path,
        success: function (response) {
          self.callback(null, response);
        }
      }).end();
    }
  };

  context['should respond with ' + code + ', ' + body] = function (err, response) {
    assert.equal(code, response.statusCode);
    assert.equal(body, response.body.toString('utf8'));
  };

  return context;
}

// My tests
vow.addBatch({
  "GET /": respondsWith(200, "Some text")
});