import struct
import unittest

from npkpy.npk.cntSquashFsHashSignature import CntSquashFsHashSignature
from tests.constants import DummyBasicCnt


class Test_cntSquashFsHashSignature(unittest.TestCase):
    def setUp(self) -> None:
        dummyCnt = DummyBasicCnt()
        dummyCnt._00_cnt_id = struct.pack("h", 9)

        self.cnt = CntSquashFsHashSignature(dummyCnt.binCnt, offsetInPck=0)

    def test_validateCntId(self):
        self.assertEqual(9, self.cnt.cnt_id)