Add databox_descriptionStructure::toArray method

lib/classes/databox/descriptionStructure.php

@@ -118,4 +118,11 @@ class databox_descriptionStructure implements IteratorAggregate
     {
         return isset($this->elements[$id]);
     }
+
+    public function toArray()
+    {
+        return array_map(function ($element) {
+            return $element->toArray();
+        }, array_values($this->elements));
+    }
 }

tests/classes/databox/databox_descriptionStructureTest.php

@@ -0,0 +1,27 @@
+<?php
+
+class databox_descriptionStructureTest extends PhraseanetPHPUnitAbstract
+{
+    public function testToArray()
+    {
+        $structure = new \databox_descriptionStructure();
+
+        $array = array('name1' => 'value1', 'name2' => 'value2');
+
+        $element = $this->provideDataboxFieldMock();
+        $element->expects($this->once())
+            ->method('toArray')
+            ->will($this->returnValue($array));
+
+        $structure->add_element($element);
+
+        $this->assertEquals(array($array), $structure->toArray());
+    }
+
+    private function provideDataboxFieldMock()
+    {
+        return $this->getMockBuilder('databox_field')
+            ->disableOriginalConstructor()
+            ->getMock();
+    }
+}