Coverage for /home/runner/work/zserio/zserio/compiler/extensions/python/runtime/tests/test_builtin.py: 100%
61 statements
« prev ^ index » next coverage.py v6.5.0, created at 2024-10-29 13:10 +0000
« prev ^ index » next coverage.py v6.5.0, created at 2024-10-29 13:10 +0000
1import unittest
3from zserio.builtin import isset, numbits
6class BuiltinOperatorsTest(unittest.TestCase):
8 def test_isset(self):
9 class DummyBitmask:
10 def __init__(self):
11 self._value = 0
13 @classmethod
14 def from_value(cls: "DummyBitmask", value: int) -> "DummyBitmask":
15 instance = cls()
16 instance._value = value
17 return instance
19 class Values:
20 READ: "DummyBitmask" = None
21 WRITE: "DummyBitmask" = None
22 CREATE: "DummyBitmask" = None
24 def __eq__(self, other: object) -> bool:
25 return self._value == other._value
27 def __and__(self, other: object) -> object:
28 return DummyBitmask.from_value(self._value & other._value)
30 def __or__(self, other: object) -> object:
31 return DummyBitmask.from_value(self._value | other._value)
33 DummyBitmask.Values.READ = DummyBitmask.from_value(1)
34 DummyBitmask.Values.WRITE = DummyBitmask.from_value(2)
35 DummyBitmask.Values.CREATE = DummyBitmask.from_value(1 | 2)
37 self.assertTrue(isset(DummyBitmask.Values.READ, DummyBitmask.Values.READ))
38 self.assertTrue(isset(DummyBitmask.Values.CREATE, DummyBitmask.Values.READ))
39 self.assertTrue(isset(DummyBitmask.Values.CREATE, DummyBitmask.Values.WRITE))
40 self.assertTrue(isset(DummyBitmask.Values.CREATE, DummyBitmask.Values.CREATE))
41 self.assertTrue(
42 isset(
43 DummyBitmask.Values.CREATE,
44 DummyBitmask.Values.READ | DummyBitmask.Values.WRITE,
45 )
46 )
47 self.assertFalse(isset(DummyBitmask.Values.READ, DummyBitmask.Values.WRITE))
48 self.assertFalse(isset(DummyBitmask.Values.READ, DummyBitmask.Values.CREATE))
50 def test_numbits(self):
51 self.assertEqual(0, numbits(0))
52 self.assertEqual(1, numbits(1))
53 self.assertEqual(1, numbits(2))
54 self.assertEqual(2, numbits(3))
55 self.assertEqual(2, numbits(4))
56 self.assertEqual(3, numbits(5))
57 self.assertEqual(3, numbits(6))
58 self.assertEqual(3, numbits(7))
59 self.assertEqual(3, numbits(8))
60 self.assertEqual(4, numbits(16))
61 self.assertEqual(5, numbits(32))
62 self.assertEqual(6, numbits(64))
63 self.assertEqual(7, numbits(128))
64 self.assertEqual(8, numbits(256))
65 self.assertEqual(9, numbits(512))
66 self.assertEqual(10, numbits(1024))
67 self.assertEqual(11, numbits(2048))
68 self.assertEqual(12, numbits(4096))
69 self.assertEqual(13, numbits(8192))
70 self.assertEqual(14, numbits(16384))
71 self.assertEqual(15, numbits(32768))
72 self.assertEqual(16, numbits(65536))
73 self.assertEqual(24, numbits(1 << 24))
74 self.assertEqual(25, numbits((1 << 24) + 1))
75 self.assertEqual(32, numbits(1 << 32))
76 self.assertEqual(33, numbits((1 << 32) + 1))
77 self.assertEqual(63, numbits(1 << 63))
78 self.assertEqual(64, numbits((1 << 63) + 1))