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33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
import sys
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import unittest
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from test.support import import_helper
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_testcapi = import_helper.import_module('_testcapi')
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SIZEOF_PY_HASH_T = _testcapi.SIZEOF_VOID_P
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class CAPITest(unittest.TestCase):
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def test_hash_getfuncdef(self):
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# Test PyHash_GetFuncDef()
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hash_getfuncdef = _testcapi.hash_getfuncdef
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func_def = hash_getfuncdef()
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match func_def.name:
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case "fnv":
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self.assertEqual(func_def.hash_bits, 8 * SIZEOF_PY_HASH_T)
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self.assertEqual(func_def.seed_bits, 16 * SIZEOF_PY_HASH_T)
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case "siphash13":
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self.assertEqual(func_def.hash_bits, 64)
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self.assertEqual(func_def.seed_bits, 128)
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case "siphash24":
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self.assertEqual(func_def.hash_bits, 64)
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self.assertEqual(func_def.seed_bits, 128)
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case _:
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self.fail(f"unknown function name: {func_def.name!r}")
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# compare with sys.hash_info
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hash_info = sys.hash_info
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self.assertEqual(func_def.name, hash_info.algorithm)
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self.assertEqual(func_def.hash_bits, hash_info.hash_bits)
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self.assertEqual(func_def.seed_bits, hash_info.seed_bits)
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