1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
// Copyright 2017 The Native Object Protocols Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <gtest/gtest.h>
#include <nop/types/enum_flags.h>
using nop::IsEnumFlags;
namespace {
enum class NonFlags {};
enum class Flags {
None = 0b00,
A = 0b01,
B = 0b10,
C = 0b11,
};
NOP_ENUM_FLAGS(Flags);
struct UserType {
enum class Flags {
Foo = 0b001,
Bar = 0b010,
Baz = 0b100,
};
};
NOP_ENUM_FLAGS(UserType::Flags);
} // anonymous namespace
TEST(EnumFlags, IsEnumFlags) {
EXPECT_TRUE(IsEnumFlags<Flags>::value);
EXPECT_TRUE(IsEnumFlags<UserType::Flags>::value);
EXPECT_FALSE(IsEnumFlags<NonFlags>::value);
}
TEST(EnumFlags, Operators) {
EXPECT_EQ(Flags::A, Flags::A & Flags::C);
EXPECT_EQ(Flags::B, Flags::A ^ Flags::C);
EXPECT_EQ(Flags::C, Flags::A | Flags::B);
EXPECT_NE(Flags::None, ~Flags::C);
EXPECT_EQ(Flags::B, Flags::C & ~Flags::A);
Flags value;
value = Flags::A;
value &= Flags::C;
EXPECT_EQ(Flags::A, value);
value = Flags::A;
value ^= Flags::C;
EXPECT_EQ(Flags::B, value);
value = Flags::A;
value |= Flags::B;
EXPECT_EQ(Flags::C, value);
EXPECT_FALSE(!!Flags::None);
EXPECT_TRUE(!!Flags::A);
}
|
