ACP2E-2909: dynamic-rows.js:658 Uncaught TypeError: dataRecord.slice while editing bundle products

 - Added the jasmine test coverage.

Author: devarul

app/code/Magento/Bundle/view/adminhtml/web/js/components/bundle-dynamic-rows-grid.js

@@ -179,7 +179,7 @@ define([
         },
 
         /**
-         * Processing add child if the record index is not a number.
+         * Parse and processing the add child method to update the latest records if the record index is not a number.
          *
          * @param {Array} data
          * @param {Array} newData

dev/tests/js/jasmine/tests/app/code/Magento/Bundle/adminhtml/js/components/bundle-dynamic-rows-grid.test.js

@@ -0,0 +1,44 @@
+/************************************************************************
+ *
+ * Copyright 2024 Adobe
+ * All Rights Reserved.
+ *
+ * ************************************************************************
+ */
+/*eslint max-nested-callbacks: 0*/
+define(['Magento_Bundle/js/components/bundle-dynamic-rows-grid'],
+    function(BundleDynamicRowsGrid) {
+        'use strict';
+
+        describe('Magento_Bundle/js/components/bundle-dynamic-rows-grid', function () {
+            let dynamicRowsGrid;
+
+            beforeEach(function () {
+                dynamicRowsGrid = new BundleDynamicRowsGrid();
+            });
+
+            describe('test parseProcessingAddChild method', function() {
+                it('Check the processingAddChild method should call when recordIndex is a valid number', function () {
+                    let data = [4];
+                    let newData = [4];
+
+                    spyOn(dynamicRowsGrid, 'processingAddChild').and.callThrough();
+
+                    dynamicRowsGrid.parseProcessingAddChild(data, newData);
+
+                    expect(dynamicRowsGrid.processingAddChild).toHaveBeenCalled();
+                });
+
+                it('Check the processingAddChild method should not call when recordIndex is inValid number', function () {
+                    let data = NaN;
+                    let newData = [2];
+
+                    spyOn(dynamicRowsGrid, 'processingAddChild').and.callThrough();
+
+                    dynamicRowsGrid.parseProcessingAddChild(data, newData);
+
+                    expect(dynamicRowsGrid.processingAddChild).not.toHaveBeenCalled();
+                });
+            });
+        });
+    });