diff --git a/test/unit-tests/common.js b/test/unit-tests/common.js
index 169c3c3f83..2727b0f75b 100644
--- a/test/unit-tests/common.js
+++ b/test/unit-tests/common.js
@@ -33,8 +33,29 @@
 
 // Include and setup all the stuff for testing
 define([
-    'chai'
+    'chai',
+    'backbone'
 ],function(chai) {
     window.expect = chai.expect;
     window.assert = chai.assert;
+
+    // Components read a little ambient state at render time -- Button asks
+    // Common.UI.Scaling for the current ratio, and the menus ask Common.Locale
+    // for the text direction. Pulling in the real modules would drag 'core' and
+    // the whole application bootstrap into a unit test, so stub the two calls.
+    window.Common = window.Common || {};
+    Common.UI = Common.UI || {};
+    Common.UI.Scaling = Common.UI.Scaling || {};
+    if (!Common.UI.Scaling.currentRatio) {
+        Common.UI.Scaling.currentRatio = function() { return 1; };
+    }
+    Common.Locale = Common.Locale || {};
+    if (!Common.Locale.isCurrentLanguageRtl) {
+        Common.Locale.isCurrentLanguageRtl = function() { return false; };
+    }
+    // Components subscribe to app-wide events (uitheme:changed, modal:close)
+    // on render. Backbone.Events is the same thing the application installs.
+    if (!Common.NotificationCenter) {
+        Common.NotificationCenter = _.extend({}, Backbone.Events);
+    }
 });
\ No newline at end of file
diff --git a/test/unit-tests/common/index.html b/test/unit-tests/common/index.html
index 71de33810d..212fbb75ec 100644
--- a/test/unit-tests/common/index.html
+++ b/test/unit-tests/common/index.html
@@ -3,23 +3,29 @@
 <head>
     <meta charset="utf-8">
     <title>Unit Tests</title>
-    <link rel="stylesheet" href="../../../../web-apps%20—%20копия/build/node_modules/mocha/mocha.css" type="text/css" media="screen" title="no title" charset="utf-8">
+    <link rel="stylesheet" href="../../../build/node_modules/mocha/mocha.css" type="text/css" media="screen" title="no title" charset="utf-8">
 </head>
 <body>
 <div id="mocha"></div>
-<script src="../../../../web-apps%20—%20копия/build/node_modules/mocha/mocha.js" type="text/javascript" charset="utf-8"></script>
-<script src="../../../../web-apps%20—%20копия/vendor/requirejs/require.js" type="text/javascript" charset="utf-8"></script>
+<script src="../../../build/node_modules/mocha/mocha.js" type="text/javascript" charset="utf-8"></script>
+<script src="../../../vendor/requirejs/require.js" type="text/javascript" charset="utf-8"></script>
+
+<script type="module">
+    // chai 5.x ships ESM only, so it cannot be pulled in by requirejs.
+    // Import it here and register it under the id the test files already use,
+    // so define(['chai']) and require('chai') keep working unchanged.
+    import * as chai from '../../../build/node_modules/chai/chai.js';
+    window.chai = chai;
+    define('chai', [], function () { return chai; });
 
-<script type="text/javascript" charset="utf-8">
     // Partial config file
     require.config({
         // Base URL relative to the test runner
         // Paths are relative to this
-        baseUrl: '../../apps/',
+        baseUrl: '../../../apps/',
         paths: {
             // Testing libs
             'common'            : 'common',
-            'chai'              : '../build/node_modules/chai/chai',
             'jquery'            : '../vendor/jquery/jquery.min',
             'underscore'        : '../vendor/underscore/underscore',
             'backbone'          : '../vendor/backbone/backbone',
@@ -64,8 +70,7 @@
 
     // You can do this in the grunt config for each mocha task, see the `options` config
     mocha.setup({
-        ui: 'bdd',
-        ignoreLeaks: true
+        ui: 'bdd'
     });
 
     // Protect from barfs
@@ -79,11 +84,27 @@
         mocha.run();
     };
 
-    require([
-        '../test/common',
-        './main/lib/util/utils.js',
-        '../../test/common/main/lib/component/Button.js'
-    ], runMocha);
+    // The app modules under test read $, _ and Backbone as globals rather than
+    // declaring them as dependencies, so requirejs is free to evaluate them
+    // before the vendor libs land. Load the globals first, then the tests.
+    require(['jquery', 'underscore', 'backbone'], function ($, _, Backbone) {
+        // underscore's UMD build registers itself as an AMD module and leaves
+        // no global behind, so publish the three the app modules expect.
+        window.$ = window.jQuery = $;
+        window._ = _;
+        window.Backbone = Backbone;
+
+        // The test setup module publishes assert/expect and stubs the ambient
+        // Common.* state the components read at render time. A flat require
+        // array would let requirejs evaluate whichever module lands first, so
+        // wait for the setup to finish before the tests are pulled in.
+        require(['../test/unit-tests/common'], function () {
+            require([
+                './main/lib/util/utils.js',
+                './main/lib/component/Button.js'
+            ], runMocha);
+        });
+    });
 </script>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/test/unit-tests/common/main/lib/component/Button.js b/test/unit-tests/common/main/lib/component/Button.js
index 77afb01a05..67b9c9f86b 100644
--- a/test/unit-tests/common/main/lib/component/Button.js
+++ b/test/unit-tests/common/main/lib/component/Button.js
@@ -35,8 +35,8 @@
 
 define([
     'backbone',
-    '../../../../../../../web-apps — копия/apps/common/main/lib/component/Button.js',
-    '../../../../../apps/common/main/lib/component/Menu.js'
+    'common/main/lib/component/Button',
+    'common/main/lib/component/Menu'
 ],function() {
     var chai    = require('chai'),
         should  = chai.should();
@@ -70,7 +70,7 @@ define([
             button.caption.should.equal('update caption');
 
             // dom
-            assert.equal(button.cmpEl.find('button:first').andSelf().filter('button').text(), 'update caption', 'dom caption');
+            assert.equal(button.cmpEl.find('button:first').addBack().filter('button').text(), 'update caption', 'dom caption');
         });
 
         it('Button toggle', function(){
diff --git a/test/unit-tests/common/main/lib/util/utils.js b/test/unit-tests/common/main/lib/util/utils.js
index a356c54550..78a103ac9b 100644
--- a/test/unit-tests/common/main/lib/util/utils.js
+++ b/test/unit-tests/common/main/lib/util/utils.js
@@ -34,7 +34,7 @@
  */
 
 define([
-    '../../../../../../../web-apps — копия/apps/common/main/lib/util/utils.js'
+    'common/main/lib/util/utils'
 ],function() {
     describe('Common.Utils.String', function(){
         it('Test format', function(){
