test/zserio/BuiltInOperatorsTest.cpp
Line | Count | Source |
1 | | #include "zserio/BuiltInOperators.h" |
2 | | |
3 | | #include "gtest/gtest.h" |
4 | | |
5 | | namespace zserio |
6 | | { |
7 | | |
8 | | namespace builtin |
9 | | { |
10 | | |
11 | | namespace |
12 | | { |
13 | | |
14 | | class DummyBitmask |
15 | | { |
16 | | public: |
17 | | using underlying_type = uint8_t; |
18 | | |
19 | | enum class Values : underlying_type |
20 | | { |
21 | | READ = 1U, |
22 | | WRITE = 2U, |
23 | | CREATE = 1U | 2U |
24 | | }; |
25 | | |
26 | | constexpr DummyBitmask(Values value) noexcept : |
27 | | m_value(static_cast<underlying_type>(value)) |
28 | 11 | {} |
29 | | |
30 | | constexpr explicit DummyBitmask(underlying_type value) noexcept : |
31 | | m_value(value) |
32 | 8 | {} |
33 | | |
34 | | constexpr underlying_type getValue() const |
35 | 22 | { |
36 | 22 | return m_value; |
37 | 22 | } |
38 | | |
39 | | private: |
40 | | underlying_type m_value; |
41 | | }; |
42 | | |
43 | | inline bool operator==(const DummyBitmask& lhs, const DummyBitmask& rhs) |
44 | 7 | { |
45 | 7 | return lhs.getValue() == rhs.getValue(); |
46 | 7 | } |
47 | | |
48 | | inline DummyBitmask operator|(DummyBitmask::Values lhs, DummyBitmask::Values rhs) |
49 | 1 | { |
50 | 1 | return DummyBitmask(static_cast<DummyBitmask::underlying_type>(lhs) | |
51 | 1 | static_cast<DummyBitmask::underlying_type>(rhs)); |
52 | 1 | } |
53 | | |
54 | | |
55 | | inline DummyBitmask operator&(DummyBitmask::Values lhs, DummyBitmask::Values rhs) |
56 | 3 | { |
57 | 3 | return DummyBitmask(static_cast<DummyBitmask::underlying_type>(lhs) & |
58 | 3 | static_cast<DummyBitmask::underlying_type>(rhs)); |
59 | 3 | } |
60 | | |
61 | | inline DummyBitmask operator&(const DummyBitmask& lhs, const DummyBitmask& rhs) |
62 | 4 | { |
63 | 4 | return DummyBitmask(lhs.getValue() & rhs.getValue()); |
64 | 4 | } |
65 | | |
66 | | } // namespace |
67 | | |
68 | | TEST(BuiltInOperatorsTest, isSet) |
69 | 1 | { |
70 | | // randomly mix bitmask instances with DummyBitmask::Values enum values to check that all variants work |
71 | 1 | ASSERT_TRUE(isSet(DummyBitmask(DummyBitmask::Values::READ), DummyBitmask::Values::READ)); |
72 | 1 | ASSERT_TRUE(isSet(DummyBitmask::Values::CREATE, DummyBitmask::Values::READ)); |
73 | 1 | ASSERT_TRUE(isSet(DummyBitmask::Values::CREATE, DummyBitmask(DummyBitmask::Values::WRITE))); |
74 | 1 | ASSERT_TRUE(isSet(DummyBitmask::Values::CREATE, DummyBitmask::Values::CREATE)); |
75 | 1 | ASSERT_TRUE(isSet(DummyBitmask::Values::CREATE, DummyBitmask::Values::READ | DummyBitmask::Values::WRITE)); |
76 | 1 | ASSERT_FALSE(isSet(DummyBitmask(DummyBitmask::Values::READ), DummyBitmask(DummyBitmask::Values::WRITE))); |
77 | 1 | ASSERT_FALSE(isSet(DummyBitmask::Values::READ, DummyBitmask::Values::CREATE)); |
78 | 1 | } |
79 | | |
80 | | TEST(BuiltInOperatorsTest, numBits) |
81 | 1 | { |
82 | 1 | EXPECT_EQ(0, numBits(0)); |
83 | 1 | EXPECT_EQ(1, numBits(1)); |
84 | 1 | EXPECT_EQ(1, numBits(2)); |
85 | 1 | EXPECT_EQ(2, numBits(3)); |
86 | 1 | EXPECT_EQ(2, numBits(4)); |
87 | 1 | EXPECT_EQ(3, numBits(5)); |
88 | 1 | EXPECT_EQ(3, numBits(6)); |
89 | 1 | EXPECT_EQ(3, numBits(7)); |
90 | 1 | EXPECT_EQ(3, numBits(8)); |
91 | 1 | EXPECT_EQ(4, numBits(16)); |
92 | 1 | EXPECT_EQ(5, numBits(32)); |
93 | 1 | EXPECT_EQ(6, numBits(64)); |
94 | 1 | EXPECT_EQ(7, numBits(128)); |
95 | 1 | EXPECT_EQ(8, numBits(256)); |
96 | 1 | EXPECT_EQ(9, numBits(512)); |
97 | 1 | EXPECT_EQ(10, numBits(1024)); |
98 | 1 | EXPECT_EQ(11, numBits(2048)); |
99 | 1 | EXPECT_EQ(12, numBits(4096)); |
100 | 1 | EXPECT_EQ(13, numBits(8192)); |
101 | 1 | EXPECT_EQ(14, numBits(16384)); |
102 | 1 | EXPECT_EQ(15, numBits(32768)); |
103 | 1 | EXPECT_EQ(16, numBits(65536)); |
104 | 1 | EXPECT_EQ(24, numBits(UINT64_C(1) << 24U)); |
105 | 1 | EXPECT_EQ(25, numBits((UINT64_C(1) << 24U) + 1)); |
106 | 1 | EXPECT_EQ(32, numBits(UINT64_C(1) << 32U)); |
107 | 1 | EXPECT_EQ(33, numBits((UINT64_C(1) << 32U) + 1)); |
108 | 1 | EXPECT_EQ(63, numBits(UINT64_C(1) << 63U)); |
109 | 1 | EXPECT_EQ(64, numBits((UINT64_C(1) << 63U) + 1)); |
110 | 1 | } |
111 | | |
112 | | } // namespace builtin |
113 | | |
114 | | } // namespace zserio |