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