upstream/mercurial-mirror Files · contrib/python-zstandard/tests/test_module_attributes.py

sparse-revlog: fix delta validity computation...

sparse-revlog: fix delta validity computation When considering the validity of a delta with sparse-revlog, we check the size of the largest read. To do so, we use some regular logic with the extra delta information. Some of this logic was not handling this extra delta properly, confusing it with "nullrev". This confusion with nullrev lead to wrong results for this computation but preventing a crash. Changeset on default revealed this error, crashing. This changeset fixes the logic on stable so that the computation is correct (and the crash is averted). The fix is made on stable as this will impact 4.7 clients interacting with sparse-revlog repositories (eg: created by later version).

Gregory Szorc - - Load All Authors

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r37513:b1fb341d default


                r39179:3730b779

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             test_module_attributes.py
        
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      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)

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				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)