QUnit tests: fixed ui.widgets runner stall by removing excessive tests

[juleari]

No description provided.

[Copilot]

Pull Request Overview

This PR addresses a performance issue in the QUnit test runner by reducing the number of test cases in the TreeView scrolling tests. The change removes an excessive nested loop that was generating a large number of redundant test combinations, replacing it with a more targeted set of tests.

Key changes:

• Removed the nested rtlEnabled loop that was generating 2x the number of test cases
• Reduced keysToScroll array from 6 items to 2 items for the main test configurations
• Added a single explicit test case for rtlEnabled: true with the most comprehensive settings

[Copilot]

Pull Request Overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

[Copilot]

Pull Request Overview

Copilot reviewed 4 out of 4 changed files in this pull request and generated no new comments.

Comments suppressed due to low confidence (1)

packages/devextreme/testing/tests/DevExpress.ui.widgets/drawer.scenarios.tests.js:1

• Duplicate commented-out QUnit.skip lines should be removed. The first occurrence (line 219) is sufficient if this code is being kept for reference.

import $ from 'jquery';