Function createMockWindow

tests/responsive.property.test.js:38–42

* Helper function to create a mock window object for testing * @param {number} width - Screen width in pixels * @returns {object} - Mock window-like object

(width)

   * @returns {object} - Mock window-like object
   */
  function createMockWindow(width) {
    return {
      innerWidth: width
    };
  }

  /**
   * Helper function to simulate BookUI view mode detection