public function testSetNested()
{
$structure = new Structure();
$structure->set('key 1', 'value 1');
$structure->set('key 2[key 3]', 'value 2');
$this->assertEquals('value 2', $structure->get('key 2[key 3]'));
$this->assertEquals('value 1', $structure->get('key 1'));
}
