public function testCanPerformNestedIterationsOfAFieldsCollection() { $first = $this->fields->getIterator()->current(); /* @var $field Field */ foreach ($this->fields as $field) { $this->assertEquals($first->getId(), $field->getId()); /* @var $fieldInner Field */ foreach ($this->fields as $fieldInner) { $this->assertEquals($first->getId(), $fieldInner->getId()); break; } break; } }