1import pytest
2from pybind11_tests import enums as m
3
4
5def test_unscoped_enum():
6 assert str(m.UnscopedEnum.EOne) == "UnscopedEnum.EOne"
7 assert str(m.UnscopedEnum.ETwo) == "UnscopedEnum.ETwo"
8 assert str(m.EOne) == "UnscopedEnum.EOne"
9 # __members__ property
10 assert m.UnscopedEnum.__members__ == \
11 {"EOne": m.UnscopedEnum.EOne, "ETwo": m.UnscopedEnum.ETwo}
12 # __members__ readonly
13 with pytest.raises(AttributeError):
14 m.UnscopedEnum.__members__ = {}
15 # __members__ returns a copy
16 foo = m.UnscopedEnum.__members__
17 foo["bar"] = "baz"
18 assert m.UnscopedEnum.__members__ == \
19 {"EOne": m.UnscopedEnum.EOne, "ETwo": m.UnscopedEnum.ETwo}
20
21 # no TypeError exception for unscoped enum ==/!= int comparisons
22 y = m.UnscopedEnum.ETwo
23 assert y == 2
24 assert y != 3
25
26 assert int(m.UnscopedEnum.ETwo) == 2
27 assert str(m.UnscopedEnum(2)) == "UnscopedEnum.ETwo"
28
29 # order
30 assert m.UnscopedEnum.EOne < m.UnscopedEnum.ETwo
31 assert m.UnscopedEnum.EOne < 2
32 assert m.UnscopedEnum.ETwo > m.UnscopedEnum.EOne
33 assert m.UnscopedEnum.ETwo > 1
34 assert m.UnscopedEnum.ETwo <= 2
35 assert m.UnscopedEnum.ETwo >= 2
36 assert m.UnscopedEnum.EOne <= m.UnscopedEnum.ETwo
37 assert m.UnscopedEnum.EOne <= 2
38 assert m.UnscopedEnum.ETwo >= m.UnscopedEnum.EOne
39 assert m.UnscopedEnum.ETwo >= 1
40 assert not (m.UnscopedEnum.ETwo < m.UnscopedEnum.EOne)
41 assert not (2 < m.UnscopedEnum.EOne)
42
43
44def test_scoped_enum():
45 assert m.test_scoped_enum(m.ScopedEnum.Three) == "ScopedEnum::Three"
46 z = m.ScopedEnum.Two
47 assert m.test_scoped_enum(z) == "ScopedEnum::Two"
48
49 # expected TypeError exceptions for scoped enum ==/!= int comparisons
50 with pytest.raises(TypeError):
51 assert z == 2
52 with pytest.raises(TypeError):
53 assert z != 3
54
55 # order
56 assert m.ScopedEnum.Two < m.ScopedEnum.Three
57 assert m.ScopedEnum.Three > m.ScopedEnum.Two
58 assert m.ScopedEnum.Two <= m.ScopedEnum.Three
59 assert m.ScopedEnum.Two <= m.ScopedEnum.Two
60 assert m.ScopedEnum.Two >= m.ScopedEnum.Two
61 assert m.ScopedEnum.Three >= m.ScopedEnum.Two
62
63
64def test_implicit_conversion():
65 assert str(m.ClassWithUnscopedEnum.EMode.EFirstMode) == "EMode.EFirstMode"
66 assert str(m.ClassWithUnscopedEnum.EFirstMode) == "EMode.EFirstMode"
67
68 f = m.ClassWithUnscopedEnum.test_function
69 first = m.ClassWithUnscopedEnum.EFirstMode
70 second = m.ClassWithUnscopedEnum.ESecondMode
71
72 assert f(first) == 1
73
74 assert f(first) == f(first)
75 assert not f(first) != f(first)
76
77 assert f(first) != f(second)
78 assert not f(first) == f(second)
79

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87 x = {f(first): 1, f(second): 2}
88 x[f(first)] = 3
89 x[f(second)] = 4
90 # Hashing test
91 assert str(x) == "{EMode.EFirstMode: 3, EMode.ESecondMode: 4}"
92
93
94def test_binary_operators():
95 assert int(m.Flags.Read) == 4
96 assert int(m.Flags.Write) == 2
97 assert int(m.Flags.Execute) == 1
98 assert int(m.Flags.Read | m.Flags.Write | m.Flags.Execute) == 7
99 assert int(m.Flags.Read | m.Flags.Write) == 6
100 assert int(m.Flags.Read | m.Flags.Execute) == 5
101 assert int(m.Flags.Write | m.Flags.Execute) == 3
102 assert int(m.Flags.Write | 1) == 3
103
104 state = m.Flags.Read | m.Flags.Write
105 assert (state & m.Flags.Read) != 0
106 assert (state & m.Flags.Write) != 0
107 assert (state & m.Flags.Execute) == 0
108 assert (state & 1) == 0
109
110 state2 = ~state
111 assert state2 == -7
112 assert int(state ^ state2) == -1
113
114
115def test_enum_to_int():
116 m.test_enum_to_int(m.Flags.Read)
117 m.test_enum_to_int(m.ClassWithUnscopedEnum.EMode.EFirstMode)
118 m.test_enum_to_uint(m.Flags.Read)
119 m.test_enum_to_uint(m.ClassWithUnscopedEnum.EMode.EFirstMode)
120 m.test_enum_to_long_long(m.Flags.Read)
121 m.test_enum_to_long_long(m.ClassWithUnscopedEnum.EMode.EFirstMode)