public function testUsesIdentifierIfNoTranslation()
{
$groups = ['slayer', 'system_of_a_down'];
$default = 'system_of_a_down';
$this->getTranslatorMock()->expects($this->any())->method('trans')->will($this->returnArgument(0));
$list = $this->buildList($groups, $default);
self::assertEquals(['slayer' => 'slayer', 'system_of_a_down' => 'system_of_a_down'], $list->getGroups());
}