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

test/javascripts/test_helper.js

@@ -1,5 +1,5 @@
 /*jshint maxlen:250 */
-/*global count:true find:true document:true */
+/*global count:true find:true document:true equal:true */
 
 //= require env
 
@@ -57,4 +57,24 @@ function exists(selector) {
 
 function count(selector) {
   return find(selector).length;
-}
+}
+
+function objBlank(obj) {
+  if (obj === undefined) return true;
+
+  switch (typeof obj) {
+  case "string":
+    return obj.trim().length === 0;
+  case "object":
+    return $.isEmptyObject(obj);
+  }
+  return false;
+}
+
+function present(obj, text) {
+  equal(objBlank(obj), false, text);
+}
+
+function blank(obj, text) {
+  equal(objBlank(obj), true, text);
+}