Fixes #134 : add Exception on HeadeMeta::setCharset() when the doctype is Xhtml

Author: samsonasik

src/Helper/HeadMeta.php

@@ -458,10 +458,15 @@ public function set($value)
      * Not valid in a non-HTML5 doctype
      *
      * @param  string $charset
+     * @throws Exception\RuntimeException
      * @return HeadMeta Provides a fluent interface
      */
     public function setCharset($charset)
     {
+        if ($this->view->plugin('doctype')->isXhtml()) {
+            throw new Exception\RuntimeException('XHTML* doctype has no attribute charset');
+        }
+
         $item = new stdClass;
         $item->type = 'charset';
         $item->charset = $charset;

test/Helper/HeadMetaTest.php

@@ -440,6 +440,18 @@ public function testCharsetPosition()
         );
     }
 
+    public function testCarsetWithXhtmlDoctypeGotException()
+    {
+        $this->expectException(Exception\RuntimeException::class);
+        $this->expectExceptionMessage('XHTML* doctype has no attribute charset');
+
+        $view = new View();
+        $view->plugin('doctype')->__invoke('XHTML1_RDFA');
+
+        $view->plugin('headMeta')
+             ->setCharset('utf-8');
+    }
+
      /**
      * @group ZF-9743
      */