annotate contrib/python-zstandard/tests/test_module_attributes.py @ 37495:b1fb341d8a61

zstandard: vendor python-zstandard 0.9.0

This was just released. It features a number of goodies. More info at
https://gregoryszorc.com/blog/2018/04/09/release-of-python-zstandard-0.9/.

The clang-format ignore list was updated to reflect the new source
of files.

The project contains a vendored copy of zstandard 1.3.4. The old
version was 1.1.3. One of the changes between those versions is that
zstandard is now dual licensed BSD + GPLv2 and the patent rights grant
has been removed. Good riddance.

The API should be backwards compatible. So no changes in core
should be needed. However, there were a number of changes in the
library that we'll want to adapt to. Those will be addressed in
subsequent commits.

Differential Revision: https://phab.mercurial-scm.org/D3198

from __future__ import unicode_literals

import unittest

import zstandard as zstd

from . common import (
    make_cffi,
)


@make_cffi
class TestModuleAttributes(unittest.TestCase):
    def test_version(self):
        self.assertEqual(zstd.ZSTD_VERSION, (1, 3, 4))

    def test_constants(self):
        self.assertEqual(zstd.MAX_COMPRESSION_LEVEL, 22)
        self.assertEqual(zstd.FRAME_HEADER, b'\x28\xb5\x2f\xfd')

    def test_hasattr(self):
        attrs = (
            'CONTENTSIZE_UNKNOWN',
            'CONTENTSIZE_ERROR',
            'COMPRESSION_RECOMMENDED_INPUT_SIZE',
            'COMPRESSION_RECOMMENDED_OUTPUT_SIZE',
            'DECOMPRESSION_RECOMMENDED_INPUT_SIZE',
            'DECOMPRESSION_RECOMMENDED_OUTPUT_SIZE',
            'MAGIC_NUMBER',
            'WINDOWLOG_MIN',
            'WINDOWLOG_MAX',
            'CHAINLOG_MIN',
            'CHAINLOG_MAX',
            'HASHLOG_MIN',
            'HASHLOG_MAX',
            'HASHLOG3_MAX',
            'SEARCHLOG_MIN',
            'SEARCHLOG_MAX',
            'SEARCHLENGTH_MIN',
            'SEARCHLENGTH_MAX',
            'TARGETLENGTH_MIN',
            'LDM_MINMATCH_MIN',
            'LDM_MINMATCH_MAX',
            'LDM_BUCKETSIZELOG_MAX',
            'STRATEGY_FAST',
            'STRATEGY_DFAST',
            'STRATEGY_GREEDY',
            'STRATEGY_LAZY',
            'STRATEGY_LAZY2',
            'STRATEGY_BTLAZY2',
            'STRATEGY_BTOPT',
            'STRATEGY_BTULTRA',
            'DICT_TYPE_AUTO',
            'DICT_TYPE_RAWCONTENT',
            'DICT_TYPE_FULLDICT',
        )

        for a in attrs:
            self.assertTrue(hasattr(zstd, a), a)