HTML and CSS Reference
In-Depth Information
Listing 15.42
Expecting
messageListController
to be an object
(function () {
var listController = tddjs.chat.messageListController;
TestCase("MessageListControllerTest", {
"test should be object": function () {
assertObject(listController);
}
});
}());
To pass the test, create
lib/message
_
list
_
controller.js
and save it
with the contents of Listing 15.43.
Listing 15.43
Defining
messageListController
(function () {
var chat = tddjs.namespace("chat");
chat.messageListController = {};
}());
Next, we expect the controller to have a
setModel
method, as seen in Listing
15.44.
Listing 15.44
Expecting
setModel
to be a function
"test should have setModel method": function () {
assertFunction(listController.setModel);
}
Listing 15.45 adds an empty method.
Listing 15.45
Adding an empty
setModel
function setModel(model) {}
chat.messageListController = {
setModel: setModel
};
15.4.1.2 Subscribing to Messages
setModel
needs to observe the model's “message” channel. Remember, in pro-
duction, the model object will be a
cometClient
that streams messages from the
server. Listing 15.46 expects
observe
to be called.
