MAGETWO-35620: Implement Observer

Author: Dmytro Voskoboinikov

app/code/Magento/Sales/Test/Unit/Model/Observer/SendEmailsTest.php

@@ -0,0 +1,184 @@
+<?php
+/**
+ * Copyright © 2015 Magento. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+namespace Magento\Sales\Test\Unit\Model\Observer;
+
+use Magento\Framework\TestFramework\Unit\Helper\ObjectManager;
+
+/**
+ * Unit test of sales emails sending observer.
+ */
+class SendEmailsTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * Subject of testing.
+     *
+     * @var \Magento\Sales\Model\Observer\SendEmails
+     */
+    protected $object;
+
+    /**
+     * Email sender model mock.
+     *
+     * @var \Magento\Sales\Model\Order\Email\Sender|\PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $emailSender;
+
+    /**
+     * Entity resource model mock.
+     *
+     * @var \Magento\Sales\Model\Resource\Entity|\PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $entityResource;
+
+    /**
+     * Entity collection model mock.
+     *
+     * @var \Magento\Sales\Model\Resource\Collection\AbstractCollection|\PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $entityCollection;
+
+    /**
+     * Global configuration storage mock.
+     *
+     * @var \Magento\Framework\App\Config|\PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $globalConfig;
+
+    protected function setUp()
+    {
+        $objectManager = new ObjectManager($this);
+
+        $this->emailSender = $this->getMock(
+            'Magento\Sales\Model\Order\Email\Sender',
+            ['send'],
+            [],
+            '',
+            false
+        );
+
+        $this->entityResource = $this->getMockForAbstractClass(
+            'Magento\Sales\Model\Resource\Entity',
+            [],
+            '',
+            false,
+            false,
+            true,
+            ['save']
+        );
+
+        $this->entityCollection = $this->getMockForAbstractClass(
+            'Magento\Sales\Model\Resource\Collection\AbstractCollection',
+            [],
+            '',
+            false,
+            false,
+            true,
+            ['addFieldToFilter', 'getItems']
+        );
+
+        $this->globalConfig = $this->getMock(
+            'Magento\Framework\App\Config',
+            [],
+            [],
+            '',
+            false
+        );
+
+        $this->object = $objectManager->getObject(
+            'Magento\Sales\Model\Observer\SendEmails',
+            [
+                'emailSender' => $this->emailSender,
+                'entityResource' => $this->entityResource,
+                'entityCollection' => $this->entityCollection,
+                'globalConfig' => $this->globalConfig
+            ]
+        );
+    }
+
+    /**
+     * @param int $configValue
+     * @param array|null $collectionItems
+     * @param bool|null $emailSendingResult
+     * @dataProvider executeDataProvider
+     * @return void
+     */
+    public function testExecute($configValue, $collectionItems, $emailSendingResult)
+    {
+        $path = 'path/to/value/async_emails';
+
+        $this->globalConfig
+            ->expects($this->once())
+            ->method('getValue')
+            ->with($path)
+            ->willReturn($configValue);
+
+        if ($configValue) {
+            $this->entityCollection
+                ->expects($this->at(0))
+                ->method('addFieldToFilter')
+                ->with('send_email', ['eq' => 1]);
+
+            $this->entityCollection
+                ->expects($this->at(1))
+                ->method('addFieldToFilter')
+                ->with('email_sent', ['null' => true]);
+
+            $this->entityCollection
+                ->expects($this->any())
+                ->method('getItems')
+                ->willReturn($collectionItems);
+
+            if ($collectionItems) {
+                /** @var \Magento\Sales\Model\AbstractModel|\PHPUnit_Framework_MockObject_MockObject $collectionItem */
+                $collectionItem = $collectionItems[0];
+
+                $this->emailSender
+                    ->expects($this->once())
+                    ->method('send')
+                    ->with($collectionItem, true)
+                    ->willReturn($emailSendingResult);
+
+                if ($emailSendingResult) {
+                    $collectionItem
+                        ->expects($this->once())
+                        ->method('setEmailSent')
+                        ->with(true)
+                        ->willReturn($collectionItem);
+
+                    $this->entityResource
+                        ->expects($this->once())
+                        ->method('save')
+                        ->with($collectionItem);
+                }
+            }
+        }
+
+        $this->object->execute();
+    }
+
+    /**
+     * @return array
+     */
+    public function executeDataProvider()
+    {
+        $entityModel = $this->getMockForAbstractClass(
+            'Magento\Sales\Model\AbstractModel',
+            [],
+            '',
+            false,
+            false,
+            true,
+            ['setEmailSent']
+        );
+
+        return [
+            [1, [$entityModel], true],
+            [1, [$entityModel], false],
+            [1, [], null],
+            [0, null, null]
+        ];
+    }
+}