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40 lines
1.3 KiB
Python
40 lines
1.3 KiB
Python
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import unittest
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import sys
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from test.support import import_helper
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# Skip this test if the _testcapi module isn't available.
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_testcapi = import_helper.import_module('_testcapi')
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class LongTests(unittest.TestCase):
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def test_compact(self):
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for n in {
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# Edge cases
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*(2**n for n in range(66)),
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*(-2**n for n in range(66)),
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*(2**n - 1 for n in range(66)),
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*(-2**n + 1 for n in range(66)),
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# Essentially random
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*(37**n for n in range(14)),
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*(-37**n for n in range(14)),
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}:
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with self.subTest(n=n):
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is_compact, value = _testcapi.call_long_compact_api(n)
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if is_compact:
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self.assertEqual(n, value)
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def test_compact_known(self):
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# Sanity-check some implementation details (we don't guarantee
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# that these are/aren't compact)
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self.assertEqual(_testcapi.call_long_compact_api(-1), (True, -1))
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self.assertEqual(_testcapi.call_long_compact_api(0), (True, 0))
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self.assertEqual(_testcapi.call_long_compact_api(256), (True, 256))
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self.assertEqual(_testcapi.call_long_compact_api(sys.maxsize),
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(False, -1))
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if __name__ == "__main__":
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unittest.main()
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