/**
* All array access keys
*
* @return array
*/
public function keys()
{
return $this->services->contents();
}
public function testContents()
{
$lockbox = new LockBox();
$lockbox->set('item1', 'value1');
$lockbox->set('item2', 'value2');
$lockbox->set('item3', 'value3');
$lockbox->set('item4', 'value4');
$this->assertEquals(['item1', 'item2', 'item3', 'item4'], $lockbox->contents());
}
