Method test_truncated_large_data

Lib/test/test_plistlib.py:1111–1137

(self)

                    plistlib.loads(b'bplist00' + data, fmt=plistlib.FMT_BINARY)

    def test_truncated_large_data(self):
        self.addCleanup(os_helper.unlink, os_helper.TESTFN)
        def check(data):
            with open(os_helper.TESTFN, 'wb') as f:
                f.write(data)
            # buffered file
            with open(os_helper.TESTFN, 'rb') as f:
                with self.assertRaises(plistlib.InvalidFileException):
                    plistlib.load(f, fmt=plistlib.FMT_BINARY)
            # unbuffered file
            with open(os_helper.TESTFN, 'rb', buffering=0) as f:
                with self.assertRaises(plistlib.InvalidFileException):
                    plistlib.load(f, fmt=plistlib.FMT_BINARY)
        for w in range(20, 64):
            s = 1 << w
            # data
            check(self.build(b'\x4f\x13' + s.to_bytes(8, 'big')))
            # ascii string
            check(self.build(b'\x5f\x13' + s.to_bytes(8, 'big')))
            # unicode string
            check(self.build(b'\x6f\x13' + s.to_bytes(8, 'big')))
            # array
            check(self.build(b'\xaf\x13' + s.to_bytes(8, 'big')))
            # dict
            check(self.build(b'\xdf\x13' + s.to_bytes(8, 'big')))
            # number of objects
            check(b'bplist00' + struct.pack('>6xBBQQQ', 1, 1, s, 0, 8))

    def test_load_aware_datetime(self):
        data = (b'bplist003B\x04>\xd0d\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00'