python (3.12.0)
1 import unittest
2 import sys
3
4 from test.support import import_helper
5
6 # Skip this test if the _testcapi module isn't available.
7 _testcapi = import_helper.import_module('_testcapi')
8
9
10 class ESC[4;38;5;81mLongTests(ESC[4;38;5;149munittestESC[4;38;5;149m.ESC[4;38;5;149mTestCase):
11
12 def test_compact(self):
13 for n in {
14 # Edge cases
15 *(2**n for n in range(66)),
16 *(-2**n for n in range(66)),
17 *(2**n - 1 for n in range(66)),
18 *(-2**n + 1 for n in range(66)),
19 # Essentially random
20 *(37**n for n in range(14)),
21 *(-37**n for n in range(14)),
22 }:
23 with self.subTest(n=n):
24 is_compact, value = _testcapi.call_long_compact_api(n)
25 if is_compact:
26 self.assertEqual(n, value)
27
28 def test_compact_known(self):
29 # Sanity-check some implementation details (we don't guarantee
30 # that these are/aren't compact)
31 self.assertEqual(_testcapi.call_long_compact_api(-1), (True, -1))
32 self.assertEqual(_testcapi.call_long_compact_api(0), (True, 0))
33 self.assertEqual(_testcapi.call_long_compact_api(256), (True, 256))
34 self.assertEqual(_testcapi.call_long_compact_api(sys.maxsize),
35 (False, -1))
36
37
38 if __name__ == "__main__":
39 unittest.main()
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