fixed #25761 - added automated test cases

Author: deepaksnair

app/code/Magento/Sitemap/Test/Unit/Model/ItemProvider/StoreUrlTest.php

@@ -0,0 +1,70 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Sitemap\Test\Unit\Model\ItemProvider;
+
+use Magento\Framework\TestFramework\Unit\Helper\ObjectManager;
+use Magento\Sitemap\Model\ItemProvider\ConfigReaderInterface;
+use Magento\Sitemap\Model\ItemProvider\StoreUrl as StoreUrlItemResolver;
+use Magento\Sitemap\Model\SitemapItem;
+use Magento\Sitemap\Model\SitemapItemInterfaceFactory;
+
+class StoreUrlTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * test for getItems method
+     */
+    public function testGetItems()
+    {
+        $configReaderMock = $this->getConfigReaderMock();
+        $itemFactoryMock = $this->getItemFactoryMock();
+        $resolver = new StoreUrlItemResolver($configReaderMock, $itemFactoryMock);
+        $items = $resolver->getItems(1);
+        
+        $this->assertTrue(count($items) == 1);
+        foreach ($items as $index => $item) {
+            $this->assertSame('daily', $items[$index]->getChangeFrequency());
+            $this->assertSame('1.0', $items[$index]->getPriority());
+        }
+    }
+    
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
+    private function getItemFactoryMock()
+    {
+        $itemFactoryMock = $this->getMockBuilder(SitemapItemInterfaceFactory::class)
+            ->setMethods(['create'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $itemFactoryMock->expects($this->any())
+            ->method('create')
+            ->willReturnCallback(function ($data) {
+                $helper = new ObjectManager($this);
+
+                return $helper->getObject(SitemapItem::class, $data);
+            });
+
+        return $itemFactoryMock;
+    }
+
+    /**
+     * @return \PHPUnit_Framework_MockObject_MockObject
+     */
+    private function getConfigReaderMock()
+    {
+        $configReaderMock = $this->getMockForAbstractClass(ConfigReaderInterface::class);
+        $configReaderMock->expects($this->any())
+            ->method('getPriority')
+            ->willReturn('1.0');
+        $configReaderMock->expects($this->any())
+            ->method('getChangeFrequency')
+            ->willReturn('daily');
+
+        return $configReaderMock;
+    }
+}