def test_from_ctype(self):
ae = self.assertEqual
data = bytearray(range(20))
inst = info2_header.from_buffer_copy(data)
header = INFO2Header.from_ctype(inst)
ae(header.version, 0x03020100)
ae(header.unknown1, 0x07060504)
ae(header.unknown2, 0x0B0A0908)
ae(header.item_size, 0x0F0E0D0C)
ae(header.unknown3, 0x13121110)
