public function testSetAndGetResult()
{
$this->agent->result('success', true);
$this->agent->result('info', 'info');
$this->agent->result('code', 'code');
$r = $this->agent->result();
$code = $this->agent->result('code');
$null = $this->agent->result('undefined');
$this->assertTrue($r['success']);
$this->assertEquals('info', $r['info']);
$this->assertEquals('code', $r['code']);
$this->assertEquals('code', $code);
$this->assertNull($null);
}