public function testFunctioning()
{
$this->parcel->setMessage("za message");
$this->parcel->setData("a", 1);
$this->parcel->setData("b", 2);
$php = json_decode($this->parcel->toJson(), true);
$this->assertEquals(1, $this->parcel->getData("a"));
$this->assertEquals(2, $this->parcel->getData("b"));
$this->assertEquals("za message", $php["message"]);
$this->assertEquals(1, $php["data"]["a"]);
$this->assertEquals(2, $php["data"]["b"]);
}
