Method test_decompress_parameters

Lib/test/test_zstd.py:548–590

(self)

        lzd.decompress(empty)

    def test_decompress_parameters(self):
        d = {DecompressionParameter.window_log_max : 15}
        ZstdDecompressor(options=d)

        d1 = d.copy()
        # larger than signed int
        d1[DecompressionParameter.window_log_max] = 2**1000
        with self.assertRaises(OverflowError):
            ZstdDecompressor(None, d1)
        # smaller than signed int
        d1[DecompressionParameter.window_log_max] = -(2**1000)
        with self.assertRaises(OverflowError):
            ZstdDecompressor(None, d1)

        d1[DecompressionParameter.window_log_max] = C_INT_MAX
        with self.assertRaises(ValueError):
            ZstdDecompressor(None, d1)
        d1[DecompressionParameter.window_log_max] = C_INT_MIN
        with self.assertRaises(ValueError):
            ZstdDecompressor(None, d1)

        # out of bounds error msg
        options = {DecompressionParameter.window_log_max:100}
        with self.assertRaisesRegex(
            ValueError,
            "decompression parameter 'window_log_max' received an illegal value 100; "
            r'the valid range is \[-?\d+, -?\d+\]',
        ):
            decompress(b'', options=options)

        # out of bounds deecompression parameter
        options[DecompressionParameter.window_log_max] = C_INT_MAX
        with self.assertRaises(ValueError):
            decompress(b'', options=options)
        options[DecompressionParameter.window_log_max] = C_INT_MIN
        with self.assertRaises(ValueError):
            decompress(b'', options=options)
        options[DecompressionParameter.window_log_max] = 2**1000
        with self.assertRaises(OverflowError):
            decompress(b'', options=options)
        options[DecompressionParameter.window_log_max] = -(2**1000)
        with self.assertRaises(OverflowError):
            decompress(b'', options=options)

    def test_unknown_decompression_parameter(self):
        KEY = 100001234