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

util: check for compression engine availability before returning...

util: check for compression engine availability before returning If a requested compression engine is registered but not available, requesting it will now abort. To be honest, I'm not sure if this is the appropriate mechanism for handling optional compression engines. I won't know until all uses of compression (bundles, wire protocol, revlogs, etc) are using the new API and zstd (our planned optional engine) is implemented. So this API could change.

Gregory Szorc - - Load All Authors

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             test_module_attributes.py
        
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      from __future__ import unicode_literals

      try:

          import unittest2 as unittest

      except ImportError:

          import unittest

      import zstd

      class TestModuleAttributes(unittest.TestCase):

          def test_version(self):

              self.assertEqual(zstd.ZSTD_VERSION, (1, 1, 1))

          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 = (

                  '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',

                  'TARGETLENGTH_MAX',

                  'STRATEGY_FAST',

                  'STRATEGY_DFAST',

                  'STRATEGY_GREEDY',

                  'STRATEGY_LAZY',

                  'STRATEGY_LAZY2',

                  'STRATEGY_BTLAZY2',

                  'STRATEGY_BTOPT',

              )

              for a in attrs:

                  self.assertTrue(hasattr(zstd, a))

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				from __future__ import unicode_literals

				try:
				import unittest2 as unittest
				except ImportError:
				import unittest

				import zstd

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

				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 = (
				'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',
				'TARGETLENGTH_MAX',
				'STRATEGY_FAST',
				'STRATEGY_DFAST',
				'STRATEGY_GREEDY',
				'STRATEGY_LAZY',
				'STRATEGY_LAZY2',
				'STRATEGY_BTLAZY2',
				'STRATEGY_BTOPT',
				)

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