refactor code to pass review

Author: edenduong

app/code/Magento/Captcha/Test/Unit/CustomerData/CaptchaTest.php

@@ -14,28 +14,19 @@
 use Magento\Captcha\Model\DefaultModel;
 use Magento\Customer\Api\Data\CustomerInterface as CustomerData;
 use Magento\Framework\TestFramework\Unit\Helper\ObjectManager as ObjectManagerHelper;
+use PHPUnit\Framework\TestCase;
 
-/**
- * Test class to cover \Magento\Captcha\CustomerData\Captcha
- *
- * Class \Magento\Captcha\Test\Unit\CustomerData\CaptchaTest
- */
-class CaptchaTest extends \PHPUnit\Framework\TestCase
+class CaptchaTest extends TestCase
 {
     /**
      * @var CaptchaHelper|\PHPUnit_Framework_MockObject_MockObject
      */
-    private $helper;
+    private $helperMock;
 
     /**
      * @var CustomerSession|\PHPUnit_Framework_MockObject_MockObject
      */
-    private $customerSession;
-
-    /**
-     * @var CustomerData|\PHPUnit_Framework_MockObject_MockObject
-     */
-    private $customerData;
+    private $customerSessionMock;
 
     /**
      * @var Captcha
@@ -57,18 +48,18 @@ class CaptchaTest extends \PHPUnit\Framework\TestCase
      */
     protected function setUp()
     {
-        $this->helper = $this->createMock(CaptchaHelper::class);
-        $this->customerSession = $this->createMock(CustomerSession::class);
+        $this->helperMock = $this->createMock(CaptchaHelper::class);
+        $this->customerSessionMock = $this->createMock(CustomerSession::class);
         $this->formIds = [
             'user_login'
         ];
         $this->objectManagerHelper = new ObjectManagerHelper($this);
         $this->model = $this->objectManagerHelper->getObject(
             Captcha::class,
             [
-                'helper' => $this->helper,
+                'helper' => $this->helperMock,
                 'formIds' => $this->formIds,
-                'customerSession' => $this->customerSession
+                'customerSession' => $this->customerSessionMock
             ]
         );
     }
@@ -83,15 +74,15 @@ public function testGetSectionDataWhenLoginAndRequireCaptcha()
         $userLoginModel = $this->createMock(DefaultModel::class);
         $userLoginModel->expects($this->any())->method('isRequired')->with($emailLogin)
             ->willReturn(true);
-        $this->helper->expects($this->any())->method('getCaptcha')->with('user_login')->willReturn($userLoginModel);
+        $this->helperMock->expects($this->any())->method('getCaptcha')->with('user_login')->willReturn($userLoginModel);
 
-        $this->customerSession->expects($this->any())->method('isLoggedIn')
+        $this->customerSessionMock->expects($this->any())->method('isLoggedIn')
             ->willReturn(true);
 
-        $this->customerData = $this->createMock(CustomerData::class);
-        $this->customerData->expects($this->any())->method('getEmail')->willReturn($emailLogin);
-        $this->customerSession->expects($this->any())->method('getCustomerData')
-            ->willReturn($this->customerData);
+        $customerDataMock = $this->createMock(CustomerData::class);
+        $customerDataMock->expects($this->any())->method('getEmail')->willReturn($emailLogin);
+        $this->customerSessionMock->expects($this->any())->method('getCustomerData')
+            ->willReturn($customerDataMock);
 
         /* Assert to test */
         $this->assertEquals(