Moved a bunch of tests to QUnit. Added basic Discourse.Site support to test suite.

test/javascripts/models/category_test.js

@@ -0,0 +1,15 @@
+/*global module:true test:true ok:true visit:true expect:true exists:true count:true equal:true */
+
+module("Discourse.Category");
+
+test('slugFor', function(){
+
+  var slugFor = function(args, val, text) {
+    equal(Discourse.Category.slugFor(args), val, text);
+  }
+
+  slugFor({slug: 'hello'}, "hello", "It calculates the proper slug for hello");
+  slugFor({id: 123, slug: ''}, "123-category", "It returns id-category for empty strings");
+  slugFor({id: 456}, "456-category", "It returns id-category for undefined slugs");
+
+});