Fixing static and integration tests

Author: eduard13

dev/tests/integration/testsuite/Magento/Framework/View/LayoutTest.php

@@ -274,7 +274,7 @@ public function testAddContainerInvalidHtmlTag()
     {
         $msg = 'Html tag "span" is forbidden for usage in containers. ' .
             'Consider to use one of the allowed: aside, dd, div, dl, fieldset, main, nav, ' .
-            'header, footer, ol, p, section, table, tfoot, ul.';
+            'header, footer, ol, p, section, table, tfoot, ul, article.';
         $this->expectException(\Magento\Framework\Exception\LocalizedException::class);
         $this->expectExceptionMessage($msg);
         $this->_layout->addContainer('container', 'Container', ['htmlTag' => 'span']);

lib/internal/Magento/Framework/View/Layout/Generator/Container.php

@@ -7,6 +7,9 @@
 
 use Magento\Framework\View\Layout;
 
+/**
+ * Layout Container Class
+ */
 class Container implements Layout\GeneratorInterface
 {
     /**#@+
@@ -43,7 +46,7 @@ class Container implements Layout\GeneratorInterface
     ];
 
     /**
-     * {@inheritdoc}
+     * @inheritdoc
      *
      * @return string
      */
@@ -96,8 +99,12 @@ public function generateContainer(
     }
 
     /**
+     * Validate container options
+     *
      * @param array $options
+     *
      * @return void
+     *
      * @throws \Magento\Framework\Exception\LocalizedException
      */
     protected function validateOptions($options)