ENGCOM-6320: [ImportExport] Cover Helper Data by Unit Test #25702

 - Merge Pull Request #25702 from edenduong/magento2:2.3-testcover/cover_helper_data_import_export
 - Merged commits:
   1. b423aaa

Author: magento-engcom-team

app/code/Magento/ImportExport/Test/Unit/Helper/DataTest.php

@@ -0,0 +1,139 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\ImportExport\Test\Unit\Helper;
+
+use Magento\Framework\TestFramework\Unit\Helper\ObjectManager as ObjectManagerHelper;
+use Magento\Framework\App\Helper\Context;
+use Magento\Framework\File\Size as FileSize;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\ImportExport\Helper\Data as HelperData;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Test class to cover Data Helper
+ *
+ * Class \Magento\ImportExport\Test\Unit\Helper\DataTest
+ */
+class DataTest extends TestCase
+{
+    /**
+     * @var ObjectManagerHelper
+     */
+    private $objectManagerHelper;
+
+    /**
+     * @var FileSize|PHPUnit_Framework_MockObject_MockObject
+     */
+    private $fileSizeMock;
+
+    /**
+     * @var Context|PHPUnit_Framework_MockObject_MockObject
+     */
+    private $contextMock;
+
+    /**
+     * @var ScopeConfigInterface|PHPUnit_Framework_MockObject_MockObject
+     */
+    private $scopeConfigMock;
+
+    /**
+     * @var HelperData|PHPUnit_Framework_MockObject_MockObject
+     */
+    private $helperData;
+
+    /**
+     * Set up environment
+     */
+    protected function setUp()
+    {
+        $this->contextMock = $this->createMock(Context::class);
+        $this->fileSizeMock = $this->createMock(FileSize::class);
+        $this->scopeConfigMock = $this->createMock(ScopeConfigInterface::class);
+        $this->contextMock->expects($this->any())->method('getScopeConfig')->willReturn($this->scopeConfigMock);
+
+        $this->objectManagerHelper = new ObjectManagerHelper($this);
+        $this->helperData = $this->objectManagerHelper->getObject(
+            HelperData::class,
+            [
+                'context' => $this->contextMock,
+                'fileSize' => $this->fileSizeMock
+            ]
+        );
+    }
+
+    /**
+     * Test getMaxUploadSizeMessage() with data provider below
+     *
+     * @param float $maxImageSize
+     * @param string $expected
+     * @return void
+     * @dataProvider getMaxUploadSizeMessageDataProvider
+     */
+    public function testGetMaxUploadSizeMessage($maxImageSize, $expected)
+    {
+        $this->fileSizeMock->expects($this->any())->method('getMaxFileSizeInMb')->willReturn($maxImageSize);
+        $this->assertEquals($expected, $this->helperData->getMaxUploadSizeMessage());
+    }
+
+    /**
+     * DataProvider for testGetMaxUploadSizeMessage() function
+     *
+     * @return array
+     */
+    public function getMaxUploadSizeMessageDataProvider()
+    {
+        return [
+            'Test with max image size = 10Mb' => [
+                'maxImageSize' => 10,
+                'expected' => 'Make sure your file isn\'t more than 10M.',
+            ],
+            'Test with max image size = 0' => [
+                'maxImageSize' => 0,
+                'expected' => 'We can\'t provide the upload settings right now.',
+            ]
+        ];
+    }
+
+    /**
+     * Test getLocalValidPaths()
+     *
+     * @return void
+     */
+    public function testGetLocalValidPaths()
+    {
+        $paths = [
+            'available' => [
+                'export_xml' => 'var/export/*/*.xml',
+                'export_csv' => 'var/export/*/*.csv',
+                'import_xml' => 'var/import/*/*.xml',
+                'import_csv' => 'var/import/*/*.csv',
+            ]
+        ];
+        $this->scopeConfigMock->expects($this->any())->method('getValue')
+            ->with(HelperData::XML_PATH_EXPORT_LOCAL_VALID_PATH)
+            ->willReturn($paths);
+
+        $this->assertEquals($paths, $this->helperData->getLocalValidPaths());
+    }
+
+    /**
+     * Test getBunchSize()
+     *
+     * @return void
+     */
+    public function testGetBunchSize()
+    {
+        $bunchSize = '100';
+
+        $this->scopeConfigMock->expects($this->any())->method('getValue')
+            ->with(HelperData::XML_PATH_BUNCH_SIZE)
+            ->willReturn($bunchSize);
+
+        $this->assertEquals(100, $this->helperData->getBunchSize());
+    }
+}