MAGETWO-37720: Cover Tango modules w. unit tests S2 (+0.7% from current 13.6%)

- Added SuppressWarnings and some comments;

Author: Bohdan Korablov

app/code/Magento/Cms/Test/Unit/Helper/Wysiwyg/ImagesTest.php

@@ -288,6 +288,10 @@ public function testIsUsingStaticUrlsAllowed($allowedValue)
         $this->assertEquals($allowedValue, $this->imagesHelper->isUsingStaticUrlsAllowed());
     }
 
+    /**
+     * @param bool $allowedValue
+     * SuppressWarnings(PHPMD.UnusedFormalParameter)
+     */
     protected function generalSettingsIsUsingStaticUrlsAllowed($allowedValue)
     {
         $storeId = 1;
@@ -297,7 +301,7 @@ protected function generalSettingsIsUsingStaticUrlsAllowed($allowedValue)
         $this->eventManagerMock->expects($this->any())
             ->method('dispatch')
             ->with('cms_wysiwyg_images_static_urls_allowed', ['result' => $checkResult, 'store_id' => $storeId])
-            ->willReturnCallback(function($str, $arr) use ($allowedValue) {
+            ->willReturnCallback(function ($str, $arr) use ($allowedValue) {
                 $arr['result']->isAllowed = $allowedValue;
             });
     }
@@ -461,6 +465,10 @@ public function providerGetImageHtmlDeclaration()
         ];
     }
 
+    /**
+     * @param string $baseUrl
+     * @param bool $isUsingStaticUrls
+     */
     protected function generalSettingsGetImageHtmlDeclaration($baseUrl, $isUsingStaticUrls)
     {
         $storeId = 1;