MC-37074: Create automated test for "Dynamic charts on Magento dashboard

Author: ysapiga

dev/tests/integration/testsuite/Magento/Backend/Block/Dashboard/Chart/PeriodTest.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Backend\Block\Dashboard\Chart;
+
+use Magento\Backend\ViewModel\ChartsPeriod;
+use Magento\Framework\ObjectManagerInterface;
+use Magento\Framework\View\Element\Template;
+use Magento\Framework\View\LayoutInterface;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\TestFramework\Helper\Xpath;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Checks chart periods on Magento dashboard
+ *
+ * @magentoAppArea adminhtml
+ */
+class PeriodTest extends TestCase
+{
+    /** @var ObjectManagerInterface */
+    private $objectManager;
+
+    /** @var Template */
+    private $block;
+
+    /** @var LayoutInterface */
+    private $layout;
+
+    /**
+     * @inheritdoc
+     */
+    public function setUp(): void
+    {
+        parent::setUp();
+
+        $this->objectManager = Bootstrap::getObjectManager();
+        $this->layout = $this->objectManager->get(LayoutInterface::class);
+        $this->block = $this->layout->createBlock(Template::class);
+        $this->block->setTemplate("Magento_Backend::dashboard/chart/period.phtml");
+        $this->block->setData('view_model', $this->objectManager->get(ChartsPeriod::class));
+    }
+
+    /**
+     * @return void
+     */
+    public function testChartPeriodOptions(): void
+    {
+        $html = $this->block->toHtml();
+        $dropDownList = [
+            __('Last 24 Hours'),
+            __('Last 7 Days'),
+            __('Current Month'),
+            __('YTD'),
+            __('2YTD')
+        ];
+        foreach ($dropDownList as $item) {
+            $xPath = "//select[@id='dashboard_chart_period']/option[normalize-space(text())='{$item}']";
+            $this->assertEquals(1, Xpath::getElementsCountForXpath($xPath, $html));
+        }
+    }
+}