Unit test for issue #1913 - unnecessary ajax call and duplicate DOM n…

…odes when refreshing a page with a dialog visible.

tests/unit/navigation/index.html

@@ -28,10 +28,13 @@ <h2 id="qunit-userAgent"></h2>
 <ol id="qunit-tests">
 </ol>
 
-<div id="foo"  data-nstest-role="page">
+<div id="foo"  data-nstest-role="page" class="foo-class">
 	<a href="#bar" data-nstest-transition="flip"></a>
 </div>
 
+<div id="foozball"  data-nstest-role="page">
+</div>
+
 <div id="bar"  data-nstest-role="page">
 	<a href="#baz"></a>
 </div>

tests/unit/navigation/navigation_core.js

@@ -476,4 +476,21 @@
 			}
 		]);
 	});
+
+	asyncTest( "refresh of a dialog url should not duplicate page", function(){
+
+		$.testHelper.pageSequence([
+			// open our test page
+			function(){
+				same($(".foo-class").length, 1, "should only have one instance of foo-class in the document");
+				location.hash = "#foo&ui-state=dialog";
+			},
+
+			function(){
+				same(location.hash, "#foo&ui-state=dialog", "hash should match what was loaded");
+				same($(".foo-class").length, 1, "should only have one instance of foo-class in the document");
+				start();
+			}
+		]);
+	});
 })(jQuery);