Added Jasmine test coverage for fix

Author: engcom-Dash

dev/tests/js/jasmine/tests/app/code/Magento/Ui/base/js/dynamic-rows/dynamic-rows.test.js

@@ -1,6 +1,6 @@
 /**
- * Copyright © Magento, Inc. All rights reserved.
- * See COPYING.txt for license details.
+ * Copyright 2017 Adobe
+ * All Rights Reserved.
  */
 
 /* eslint-disable max-nested-callbacks */
@@ -204,5 +204,36 @@ define([
             expect(model.pages()).toEqual(2);
             expect(model.currentPage()).toEqual(2);
         });
+
+        it('should process pages before addChild', function () {
+            var ctx = {}; // Mock context
+            var index = 5;
+            var prop = 'someProp';
+            model.pageSize = 2;
+            model.relatedData = [
+                {
+                    name: 'first'
+                },
+                {
+                    name: 'second'
+                },
+                {
+                    name: 'third'
+                },
+                {
+                    name: 'fourth'
+                },
+                {
+                    name: 'fifth'
+                }
+            ];
+            model.bubble = jasmine.createSpy();
+            model.addChild = jasmine.createSpy();
+            model.processingAddChild(ctx, index, prop);
+            expect(model.bubble).toHaveBeenCalledWith('addChild', false);
+            expect(model.pages()).toEqual(3);
+            expect(model.currentPage()).toEqual(3);
+            expect(model.addChild).toHaveBeenCalledWith(ctx, index, prop);
+        });
     });
 });