From ce340abe9e9cfe3734f49deb97f7bd3f957fdc76 Mon Sep 17 00:00:00 2001
From: Dmytro Cheshun <mitry@atwix.com>
Date: Fri, 12 Oct 2018 09:19:00 +0300
Subject: [PATCH 1/3] Add unit test for ModuleService

---
 .../Unit/Service/V1/ModuleServiceTest.php     | 71 +++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php

diff --git a/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php b/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
new file mode 100644
index 0000000000000..db103c0de05d5
--- /dev/null
+++ b/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Backend\Test\Unit\Model;
+
+use Magento\Backend\Service\V1\ModuleService;
+use Magento\Framework\Module\ModuleListInterface;
+use Magento\Framework\TestFramework\Unit\Helper\ObjectManager;
+
+/**
+ * Module List Service Test
+ *
+ * Covers \Magento\Sales\Model\ValidatorResultMerger
+ */
+class ValidatorResultMergerTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * Testable Object
+     *
+     * @var ModuleService
+     */
+    private $moduleService;
+
+    /**
+     * @var ModuleListInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $moduleListMock;
+
+    /**
+     * Object Manager
+     *
+     * @var ObjectManager
+     */
+    private $objectManager;
+
+    /**
+     * Set Up
+     *
+     * @return void
+     */
+    protected function setUp()
+    {
+        $this->moduleListMock = $this->createMock(ModuleListInterface::class);
+        $this->objectManager = new ObjectManager($this);
+        $this->moduleService = $this->objectManager->getObject(
+            ModuleService::class,
+            [
+                'moduleList' => $this->moduleListMock,
+            ]
+        );
+    }
+
+    /**
+     * Test getModules method
+     *
+     * @return void
+     */
+    public function testGetModules()
+    {
+        $moduleNames = ['Magento_Backend', 'Magento_Catalog', 'Magento_Customer'];
+        $this->moduleListMock->expects($this->once())->method('getNames')->willReturn($moduleNames);
+
+        $expected = $moduleNames;
+        $actual = $this->moduleService->getModules();
+        $this->assertEquals($expected, $actual);
+    }
+}

From be0e463bff4d0fcf82a923cd14ffccd70620e86b Mon Sep 17 00:00:00 2001
From: Dmytro Cheshun <mitry@atwix.com>
Date: Fri, 12 Oct 2018 09:20:10 +0300
Subject: [PATCH 2/3] Fix the class name

---
 .../Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php b/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
index db103c0de05d5..f86747aac1259 100644
--- a/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
@@ -16,7 +16,7 @@
  *
  * Covers \Magento\Sales\Model\ValidatorResultMerger
  */
-class ValidatorResultMergerTest extends \PHPUnit\Framework\TestCase
+class ModuleServiceTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Testable Object

From 7e56ae60210c2c02b343954e8c29bb6ea25b45e8 Mon Sep 17 00:00:00 2001
From: Dmytro Cheshun <mitry@atwix.com>
Date: Fri, 12 Oct 2018 13:26:05 +0300
Subject: [PATCH 3/3] Fixed the namespace

---
 .../Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php b/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
index f86747aac1259..c7ff1d95617b6 100644
--- a/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
+++ b/app/code/Magento/Backend/Test/Unit/Service/V1/ModuleServiceTest.php
@@ -5,7 +5,7 @@
  */
 declare(strict_types=1);
 
-namespace Magento\Backend\Test\Unit\Model;
+namespace Magento\Backend\Test\Unit\Service\V1;
 
 use Magento\Backend\Service\V1\ModuleService;
 use Magento\Framework\Module\ModuleListInterface;