HTML and CSS Reference
In-Depth Information
Listing 12.24
Extracting
fakeXMLHttpRequest
var fakeXMLHttpRequest = {
open: stubFn()
};
Because the fake object relies on
stubFn
, which is defined in
lib/stub.js
,
we need to update
jsTestDriver.conf
to make sure the helper is loaded before
the fake object. Listing 12.25 shows the updated configuration file.
Listing 12.25
Updating
jsTestDriver.conf
to load files in correct order
server: http://localhost:4224
load:
- lib/stub.js
- lib/*.js
- src/*.js
- test/*.js
Next up, we update the test case by elevating the
ajax.create
stub to
setUp
. To create the
fakeXMLHttpRequest
object we will use
Object.
create
from Chapter 7,
Objects and Prototypal Inheritance,
so place this func-
tion in
lib/object.js
. Listing 12.26 shows the updated test case.
Listing 12.26
Automate stubbing of
ajax.create
and
XMLHttpRequest
TestCase("GetRequestTest", {
setUp: function () {
this.ajaxCreate = ajax.create;
this.xhr = Object.create(fakeXMLHttpRequest);
ajax.create = stubFn(this.xhr);
},
/* ... */
"test should obtain an XMLHttpRequest object":
function () {
ajax.get("/url");
assert(ajax.create.called);
},
"test should call open with method, url, async flag":
function () {
