Unit testing with AJAX

[Justin]

Is this something that we should/could add to our unit test framework?

- Justin
On 9-Feb-09, at 11:21 AM, Colin Clark wrote:

> Michelle,
>
> This is a really nifty strategy. Thanks for sharing it with the  
> list. One quick comment below...
>
> On 6-Feb-09, at 2:59 PM, Michelle D'Souza wrote:
>
>> I've spent a couple hours today trying to get the table of contents  
>> tests passing and now that they are working I thought I'd share  
>> what I learned (thanks Antranig). The problem I ran into was that  
>> the code I was testing had an AJAX call in it. I needed to run the  
>> test after the AJAX call returned. Our general test writing pattern  
>> will not work in this case, instead I used our event system to run  
>> the test. This is not a perfect solution since the test knows an  
>> implementation detail of the code (that there is an AJAX call) but  
>> I couldn't think of a better way to write this.
>
> Actually, I don't think this does reveal an implementation detail to  
> the test code, or to anyone else for that matter. You've  
> encapsulated this into a standard Infusion event ("myEvent"), so the  
> contract is clear. The specifics of the AJAX call, however, don't  
> leak out into user code. This is a good thing.
>
> Plus, generally users of this code would generally want to know  
> about the fact that an AJAX call is being made so that they can use  
> the event wisely.
>
> Colin
>
>>
>>
>> If you are going to use this strategy for code you are testing, it  
>> is important to remember that the test itself needs to start inside  
>> the event handler. This pattern looks like this:
>>
>> (function ($) {
>>   $(document).ready(function () {
>>           var tests = new jqUnit.TestCase("My Tests");
>>
>>           var myEventHandler = function () {
>>               tests.test("My Test", function () {
>>                   assertTrue("this is a test", true);
>>               });
>>           };
>>
>>           var options = {
>>               listeners: {
>>                   myEvent: myEventHandler
>>               }
>>           };
>>
>>           fluid.myComponent(container, options);
>>   });
>> })(jQuery);
>>
>>
>>
>>
>> ------------------------------------------------------
>> Michelle D'Souza
>> Software Developer, Fluid Project
>> Adaptive Technology Resource Centre
>> University of Toronto
>>
>>
>>
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>
> ---
> Colin Clark
> Technical Lead, Fluid Project
> Adaptive Technology Resource Centre, University of Toronto
> http://fluidproject.org
>
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