1 #include <vector>
2
3 #include "../src/benchmark_register.h"
4 #include "gmock/gmock.h"
5 #include "gtest/gtest.h"
6
7 namespace benchmark {
8 namespace internal {
9 namespace {
10
TEST(AddRangeTest,Simple)11 TEST(AddRangeTest, Simple) {
12 std::vector<int> dst;
13 AddRange(&dst, 1, 2, 2);
14 EXPECT_THAT(dst, testing::ElementsAre(1, 2));
15 }
16
TEST(AddRangeTest,Simple64)17 TEST(AddRangeTest, Simple64) {
18 std::vector<int64_t> dst;
19 AddRange(&dst, static_cast<int64_t>(1), static_cast<int64_t>(2), 2);
20 EXPECT_THAT(dst, testing::ElementsAre(1, 2));
21 }
22
TEST(AddRangeTest,Advanced)23 TEST(AddRangeTest, Advanced) {
24 std::vector<int> dst;
25 AddRange(&dst, 5, 15, 2);
26 EXPECT_THAT(dst, testing::ElementsAre(5, 8, 15));
27 }
28
TEST(AddRangeTest,Advanced64)29 TEST(AddRangeTest, Advanced64) {
30 std::vector<int64_t> dst;
31 AddRange(&dst, static_cast<int64_t>(5), static_cast<int64_t>(15), 2);
32 EXPECT_THAT(dst, testing::ElementsAre(5, 8, 15));
33 }
34
TEST(AddRangeTest,FullRange8)35 TEST(AddRangeTest, FullRange8) {
36 std::vector<int8_t> dst;
37 AddRange(&dst, int8_t{1}, std::numeric_limits<int8_t>::max(), 8);
38 EXPECT_THAT(dst, testing::ElementsAre(1, 8, 64, 127));
39 }
40
TEST(AddRangeTest,FullRange64)41 TEST(AddRangeTest, FullRange64) {
42 std::vector<int64_t> dst;
43 AddRange(&dst, int64_t{1}, std::numeric_limits<int64_t>::max(), 1024);
44 EXPECT_THAT(
45 dst, testing::ElementsAre(1LL, 1024LL, 1048576LL, 1073741824LL,
46 1099511627776LL, 1125899906842624LL,
47 1152921504606846976LL, 9223372036854775807LL));
48 }
49
TEST(AddRangeTest,NegativeRanges)50 TEST(AddRangeTest, NegativeRanges) {
51 std::vector<int> dst;
52 AddRange(&dst, -8, 0, 2);
53 EXPECT_THAT(dst, testing::ElementsAre(-8, -4, -2, -1, 0));
54 }
55
TEST(AddRangeTest,StrictlyNegative)56 TEST(AddRangeTest, StrictlyNegative) {
57 std::vector<int> dst;
58 AddRange(&dst, -8, -1, 2);
59 EXPECT_THAT(dst, testing::ElementsAre(-8, -4, -2, -1));
60 }
61
TEST(AddRangeTest,SymmetricNegativeRanges)62 TEST(AddRangeTest, SymmetricNegativeRanges) {
63 std::vector<int> dst;
64 AddRange(&dst, -8, 8, 2);
65 EXPECT_THAT(dst, testing::ElementsAre(-8, -4, -2, -1, 0, 1, 2, 4, 8));
66 }
67
TEST(AddRangeTest,SymmetricNegativeRangesOddMult)68 TEST(AddRangeTest, SymmetricNegativeRangesOddMult) {
69 std::vector<int> dst;
70 AddRange(&dst, -30, 32, 5);
71 EXPECT_THAT(dst, testing::ElementsAre(-30, -25, -5, -1, 0, 1, 5, 25, 32));
72 }
73
TEST(AddRangeTest,NegativeRangesAsymmetric)74 TEST(AddRangeTest, NegativeRangesAsymmetric) {
75 std::vector<int> dst;
76 AddRange(&dst, -3, 5, 2);
77 EXPECT_THAT(dst, testing::ElementsAre(-3, -2, -1, 0, 1, 2, 4, 5));
78 }
79
TEST(AddRangeTest,NegativeRangesLargeStep)80 TEST(AddRangeTest, NegativeRangesLargeStep) {
81 // Always include -1, 0, 1 when crossing zero.
82 std::vector<int> dst;
83 AddRange(&dst, -8, 8, 10);
84 EXPECT_THAT(dst, testing::ElementsAre(-8, -1, 0, 1, 8));
85 }
86
TEST(AddRangeTest,ZeroOnlyRange)87 TEST(AddRangeTest, ZeroOnlyRange) {
88 std::vector<int> dst;
89 AddRange(&dst, 0, 0, 2);
90 EXPECT_THAT(dst, testing::ElementsAre(0));
91 }
92
TEST(AddRangeTest,NegativeRange64)93 TEST(AddRangeTest, NegativeRange64) {
94 std::vector<int64_t> dst;
95 AddRange<int64_t>(&dst, -4, 4, 2);
96 EXPECT_THAT(dst, testing::ElementsAre(-4, -2, -1, 0, 1, 2, 4));
97 }
98
TEST(AddRangeTest,NegativeRangePreservesExistingOrder)99 TEST(AddRangeTest, NegativeRangePreservesExistingOrder) {
100 // If elements already exist in the range, ensure we don't change
101 // their ordering by adding negative values.
102 std::vector<int64_t> dst = {1, 2, 3};
103 AddRange<int64_t>(&dst, -2, 2, 2);
104 EXPECT_THAT(dst, testing::ElementsAre(1, 2, 3, -2, -1, 0, 1, 2));
105 }
106
TEST(AddRangeTest,FullNegativeRange64)107 TEST(AddRangeTest, FullNegativeRange64) {
108 std::vector<int64_t> dst;
109 const auto min = std::numeric_limits<int64_t>::min();
110 const auto max = std::numeric_limits<int64_t>::max();
111 AddRange(&dst, min, max, 1024);
112 EXPECT_THAT(
113 dst, testing::ElementsAreArray(std::vector<int64_t>{
114 min, -1152921504606846976LL, -1125899906842624LL,
115 -1099511627776LL, -1073741824LL, -1048576LL, -1024LL, -1LL, 0LL,
116 1LL, 1024LL, 1048576LL, 1073741824LL, 1099511627776LL,
117 1125899906842624LL, 1152921504606846976LL, max}));
118 }
119
TEST(AddRangeTest,Simple8)120 TEST(AddRangeTest, Simple8) {
121 std::vector<int8_t> dst;
122 AddRange<int8_t>(&dst, 1, 8, 2);
123 EXPECT_THAT(dst, testing::ElementsAre(1, 2, 4, 8));
124 }
125
126 } // namespace
127 } // namespace internal
128 } // namespace benchmark
129