MAGETWO-63932: Add fixtures to generate admin users

- Fixtures added

Author: epamVitaliKirychenka

setup/src/Magento/Setup/Fixtures/AdminUsersFixture.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * Copyright © 2013-2017 Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Setup\Fixtures;
+
+/**
+ * Class for generating admin users.
+ */
+class AdminUsersFixture extends Fixture
+{
+    /**
+     * @var int
+     */
+    protected $priority = 5;
+
+    /**
+     * {@inheritdoc}
+     */
+    public function execute()
+    {
+        $adminUsersNumber = $this->fixtureModel->getValue('admin_users', 0);
+        if (!$adminUsersNumber) {
+            return;
+        }
+
+        /** @var \Magento\User\Model\UserFactory $adminUserFactory */
+        $adminUserFactory = $this->fixtureModel->getObjectManager()->create(\Magento\User\Model\UserFactory::class);
+
+        /** @var \Magento\Authorization\Model\RoleFactory $roleFactory */
+        $roleFactory = $this->fixtureModel->getObjectManager()->create(\Magento\Authorization\Model\RoleFactory::class);
+
+        for ($i = 1; $i <= $adminUsersNumber; $i++) {
+            $adminUser = $adminUserFactory->create();
+            $adminUser
+                ->setEmail('admin' . $i . '@example.com')
+                ->setFirstName('Firstname')
+                ->setLastName('Lastname')
+                ->setUserName('admin' . $i)
+                ->setPassword('123123q')
+                ->setIsActive(1);
+            $adminUser->save();
+
+            $role = $roleFactory->create();
+            $role
+                ->setUserId($adminUser->getId())
+                ->setRoleName('admin')
+                ->setRoleType('U')
+                ->setUserType(2)
+                ->setTreeLevel(2)
+                ->setSortOrder(0)
+                ->setParentId(1);
+            $role->save();
+        }
+
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getActionTitle()
+    {
+        return 'Generating admin users';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function introduceParamLabels()
+    {
+        return [
+            'customers' => 'Admin Users'
+        ];
+    }
+}