Method test_invalid_dict

Lib/test/test_zstd.py:1242–1286

(self)

            ZstdDict(desk333=345)

    def test_invalid_dict(self):
        DICT_MAGIC = 0xEC30A437.to_bytes(4, byteorder='little')
        dict_content = DICT_MAGIC + b'abcdefghighlmnopqrstuvwxyz'

        # corrupted
        zd = ZstdDict(dict_content, is_raw=False)
        with self.assertRaisesRegex(ZstdError, r'ZSTD_CDict.*?content\.$'):
            ZstdCompressor(zstd_dict=zd.as_digested_dict)
        with self.assertRaisesRegex(ZstdError, r'ZSTD_DDict.*?content\.$'):
            ZstdDecompressor(zd)

        # wrong type
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdCompressor(zstd_dict=[zd, 1])
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdCompressor(zstd_dict=(zd, 1.0))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdCompressor(zstd_dict=(zd,))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdCompressor(zstd_dict=(zd, 1, 2))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdCompressor(zstd_dict=(zd, -1))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdCompressor(zstd_dict=(zd, 3))
        with self.assertRaises(OverflowError):
            ZstdCompressor(zstd_dict=(zd, 2**1000))
        with self.assertRaises(OverflowError):
            ZstdCompressor(zstd_dict=(zd, -2**1000))

        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdDecompressor(zstd_dict=[zd, 1])
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdDecompressor(zstd_dict=(zd, 1.0))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdDecompressor((zd,))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdDecompressor((zd, 1, 2))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdDecompressor((zd, -1))
        with self.assertRaisesRegex(TypeError, r'should be a ZstdDict object'):
            ZstdDecompressor((zd, 3))
        with self.assertRaises(OverflowError):
            ZstdDecompressor((zd, 2**1000))
        with self.assertRaises(OverflowError):
            ZstdDecompressor((zd, -2**1000))

    def test_train_dict(self):
        TRAINED_DICT = train_dict(SAMPLES, DICT_SIZE1)