Unit Test for \Magento\Directory\Block\Adminhtml\Frontend\Currency\Base

app/code/Magento/Directory/Test/Unit/Block/Adminhtml/Frontend/Currency/BaseTest.php

@@ -0,0 +1,110 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+declare(strict_types=1);
+
+namespace Magento\Directory\Test\Unit\Block\Adminhtml\Frontend\Currency;
+
+use Magento\Directory\Block\Adminhtml\Frontend\Currency\Base;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\App\RequestInterface;
+use Magento\Framework\Data\Form\Element\AbstractElement;
+use Magento\Framework\TestFramework\Unit\Helper\ObjectManager as ObjectManagerHelper;
+use Magento\Store\Model\Store;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Unit test for \Magento\Directory\Block\Adminhtml\Frontend\Currency\Base
+ */
+class BaseTest extends TestCase
+{
+    const STUB_WEBSITE_PARAM = 'website';
+
+    /**
+     * @var AbstractElement|MockObject
+     */
+    private $elementMock;
+
+    /**
+     * @var RequestInterface|MockObject
+     */
+    private $requestMock;
+
+    /**
+     * @var ScopeConfigInterface|MockObject
+     */
+    private $scopeConfigMock;
+
+    /**
+     * @var Base
+     */
+    private $baseCurrency;
+
+    /**
+     * @inheritDoc
+     */
+    protected function setUp()
+    {
+        $this->elementMock = $this->createMock(AbstractElement::class);
+        $this->scopeConfigMock = $this->createMock(ScopeConfigInterface::class);
+        $this->requestMock = $this->getMockBuilder(RequestInterface::class)
+            ->disableOriginalConstructor()
+            ->setMethods(['getParam'])
+            ->getMockForAbstractClass();
+
+        $this->baseCurrency = (new ObjectManagerHelper($this))->getObject(
+            Base::class,
+            ['_request' => $this->requestMock, '_scopeConfig' => $this->scopeConfigMock]
+        );
+    }
+
+    /**
+     * Test case when no Website param provided
+     */
+    public function testRenderWithoutWebsiteParam()
+    {
+        $this->requestMock->expects($this->once())
+            ->method('getParam')
+            ->willReturn('');
+        $this->scopeConfigMock->expects($this->never())->method('getValue');
+
+        $result = $this->baseCurrency->render(($this->elementMock));
+        $this->assertFalse(empty($result), 'Result should not be empty.');
+    }
+
+    /**
+     * Test case when Website param is provided and Price Scope is set to Global
+     */
+    public function testRenderWhenWebsiteParamSetAndPriceScopeGlobal()
+    {
+        $this->requestMock->expects($this->once())
+            ->method('getParam')
+            ->willReturn(self::STUB_WEBSITE_PARAM);
+        $this->scopeConfigMock->expects($this->once())
+            ->method('getValue')
+            ->willReturn(Store::PRICE_SCOPE_GLOBAL);
+
+        $result = $this->baseCurrency->render(($this->elementMock));
+        $this->assertEquals('', $result, 'Result should be an empty string.');
+    }
+
+    /**
+     * Test case when Website param is provided and Price Scope is not Global
+     */
+    public function testRenderWhenWebsiteParamSetAndPriceScopeOther()
+    {
+        $this->requestMock->expects($this->once())
+            ->method('getParam')
+            ->willReturn(self::STUB_WEBSITE_PARAM);
+        $this->scopeConfigMock->expects($this->once())
+            ->method('getValue')
+            ->willReturn(Store::PRICE_SCOPE_WEBSITE);
+
+        $result = $this->baseCurrency->render(($this->elementMock));
+        $this->assertFalse(empty($result), 'Result should not be empty.');
+    }
+}