fix

tests/UserActionManager.php

@@ -0,0 +1,41 @@
+<?require($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/include/prolog_before.php");?>
+<?
+if(\Bitrix\Main\Loader::includeModule('wt.core')) {
+    app()->service()->assets()->setPlugins([
+        'kit:config',
+        'kit:flex-kit',
+        'kit:core',
+        'kit:bsCore',
+        'kit:collapse',
+        'kit:site',
+        'kit:toolkit',
+        'kit:theme',
+    ])->render();
+}
+$APPLICATION->ShowHead();
+
+?>
+<script>
+    kit.ready(['UserActionManager'], function () {
+        var m1 = new kit.UserActionManager();
+        m1.setAction('popover');
+
+    });
+</script>
+    <style>
+        .hide {
+            display: none;
+        }
+    </style>
+<div class="kit-wrapper">
+
+
+    <div id="object1" style="width: 300px; height: 50px; background-color: #eaeaea; border: 1px solid;">1</div>
+
+    <div id="object2" style="width: 300px; height: 50px; background-color: #3860ff; border: 1px solid; display: none" class="hide">2</div>
+
+    <div id="object3" style="width: 300px; height: 50px; background-color: #ff1d34; border: 1px solid; display: none" class="hide">3</div>
+
+</div>
+<?
+?>

tests/index.php

@@ -6,5 +6,6 @@
     <a href="cheatsheet.php">cheatsheet</a>
     <a href="card/block.php">card/block</a>
     <a href="kit.Collection.php">kit.Collection</a>
+    <a href="UserActionManager.php">UserActionManager</a>
 
 </div>

tests/kit.Collection.php

@@ -107,6 +107,26 @@ kit.ready(['collection'], function () {
     }), undefined, 'first');
 
     assertSame(collection.keys().count(), 3, 'keys');
+
+
+    x = new kit.Collection({1: 1, 100: 100});
+    x.push(200);
+    assertSame(x.last(), 200, 'object push last');
+    x.push(0);
+    assertSame(x.last(), 0, 'object push last');
+    x.push(undefined);
+    assertSame(x.last(), undefined, 'object push last');
+    x.push('window');
+    assertSame(x.last(), 'window', 'object push last');
+    assertSame(x.get(x.lastKey()), 'window', 'get lastKey');
+
+    x = new kit.Collection([1, 100]);
+    x.push(200);
+    assertSame(x.last(), 200, 'array push last');
+    x.push(0);
+    assertSame(x.last(), 0, 'array push last');
+
+
 });
 
 </script>