Added dump() method to element

Author: dantleech

lib/Element.php

@@ -49,4 +49,15 @@ public function evaluate($expression, \DOMNode $context = null)
     {
         return $this->ownerDocument->xpath()->evaluate($expression, $context ?: $this);
     }
+
+    /**
+     * Dump the current node
+     */
+    public function dump()
+    {
+        $document = new Document();
+        $document->appendChild($document->importNode($this, true));
+
+        return $document->dump();
+    }
 }

tests/Unit/ElementTest.php

@@ -79,6 +79,24 @@ public function testQueryOneNone()
         $this->assertNull($node);
     }
 
+    /**
+     * It should return the XML contained in the node.
+     */
+    public function testDumpNode()
+    {
+        $this->element->appendElement('boo');
+        $dump = $this->element->dump();
+
+        $this->assertEquals(<<<EOT
+<?xml version="1.0"?>
+<test>
+  <boo/>
+</test>
+
+EOT
+        , $dump);
+    }
+
     private function getXml()
     {
         $xml = <<<EOT