POST — tạo booking, và 2 phát hiện thật

def test_post_01_tao_booking_hop_le(api_context):
    """POST-01: tao booking du field, khong can token -> HTTP 200, tra ve bookingid + dung du lieu da gui."""
    du_lieu = {
        "firstname": "Nguyen",
        "lastname": "Van A",
        "totalprice": 350000,
        "depositpaid": True,
        "bookingdates": {"checkin": "2026-10-01", "checkout": "2026-10-05"},
    }
    response = api_context.post("/booking", data=du_lieu)
    assert response.status == 200  # tao thanh cong
    body = response.json()
    assert "bookingid" in body  # phai tra ve id booking moi
    assert body["booking"]["firstname"] == "Nguyen"  # du lieu tra ve dung nhu da gui
    assert body["booking"]["totalprice"] == 350000  # gia tri so dung nhu da gui
 
 
def test_post_02_thieu_field_bat_buoc(api_context):
    """GOC SOI LOI (POST-02): thieu han firstname -> khong bao loi validate ro rang ma
    trả ve HTTP 500 Internal Server Error. API khong xu ly graceful cho du lieu thieu."""
    du_lieu = {
        "lastname": "User",
        "totalprice": 100,
        "depositpaid": True,
        "bookingdates": {"checkin": "2026-09-01", "checkout": "2026-09-05"},
    }
    response = api_context.post("/booking", data=du_lieu)
    assert response.status == 500  # xac nhan API loi 500 khi thieu field bat buoc
 
 
def test_post_03_totalprice_sai_kieu_du_lieu(api_context):
    """GOC SOI LOI (POST-03): gui totalprice la chuoi "mot-tram" thay vi so ->
    API KHONG tu choi (van 200) ma am tham luu totalprice thanh null. Day la loi
    thieu validate kieu du lieu, de gay sai lech du lieu that neu khong test truoc."""
    du_lieu = {
        "firstname": "Test",
        "lastname": "User",
        "totalprice": "mot-tram",
        "depositpaid": True,
        "bookingdates": {"checkin": "2026-09-01", "checkout": "2026-09-05"},
    }
    response = api_context.post("/booking", data=du_lieu)
    assert response.status == 200  # API van chap nhan, khong tu choi
    assert response.json()["booking"]["totalprice"] is None  # gia tri sai kieu bi luu thanh null