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gbench-stream/benchmark/test/benchmark_gtest.cc
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benchmark_gtest.cc
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#include <map>
#include <string>
#include <vector>
#include "../src/benchmark_register.h"
#include "benchmark/benchmark.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace benchmark {
namespace internal {
namespace {
TEST(AddRangeTest, Simple) {
std::vector<int> dst;
AddRange(&dst, 1, 2, 2);
EXPECT_THAT(dst, testing::ElementsAre(1, 2));
}
TEST(AddRangeTest, Simple64) {
std::vector<int64_t> dst;
AddRange(&dst, static_cast<int64_t>(1), static_cast<int64_t>(2), 2);
EXPECT_THAT(dst, testing::ElementsAre(1, 2));
}
TEST(AddRangeTest, Advanced) {
std::vector<int> dst;
AddRange(&dst, 5, 15, 2);
EXPECT_THAT(dst, testing::ElementsAre(5, 8, 15));
}
TEST(AddRangeTest, Advanced64) {
std::vector<int64_t> dst;
AddRange(&dst, static_cast<int64_t>(5), static_cast<int64_t>(15), 2);
EXPECT_THAT(dst, testing::ElementsAre(5, 8, 15));
}
TEST(AddRangeTest, FullRange8) {
std::vector<int8_t> dst;
AddRange(&dst, int8_t{1}, std::numeric_limits<int8_t>::max(), int8_t{8});
EXPECT_THAT(
dst, testing::ElementsAre(int8_t{1}, int8_t{8}, int8_t{64}, int8_t{127}));
}
TEST(AddRangeTest, FullRange64) {
std::vector<int64_t> dst;
AddRange(&dst, int64_t{1}, std::numeric_limits<int64_t>::max(), 1024);
EXPECT_THAT(
dst, testing::ElementsAre(1LL, 1024LL, 1048576LL, 1073741824LL,
1099511627776LL, 1125899906842624LL,
1152921504606846976LL, 9223372036854775807LL));
}
TEST(AddRangeTest, NegativeRanges) {
std::vector<int> dst;
AddRange(&dst, -8, 0, 2);
EXPECT_THAT(dst, testing::ElementsAre(-8, -4, -2, -1, 0));
}
TEST(AddRangeTest, StrictlyNegative) {
std::vector<int> dst;
AddRange(&dst, -8, -1, 2);
EXPECT_THAT(dst, testing::ElementsAre(-8, -4, -2, -1));
}
TEST(AddRangeTest, SymmetricNegativeRanges) {
std::vector<int> dst;
AddRange(&dst, -8, 8, 2);
EXPECT_THAT(dst, testing::ElementsAre(-8, -4, -2, -1, 0, 1, 2, 4, 8));
}
TEST(AddRangeTest, SymmetricNegativeRangesOddMult) {
std::vector<int> dst;
AddRange(&dst, -30, 32, 5);
EXPECT_THAT(dst, testing::ElementsAre(-30, -25, -5, -1, 0, 1, 5, 25, 32));
}
TEST(AddRangeTest, NegativeRangesAsymmetric) {
std::vector<int> dst;
AddRange(&dst, -3, 5, 2);
EXPECT_THAT(dst, testing::ElementsAre(-3, -2, -1, 0, 1, 2, 4, 5));
}
TEST(AddRangeTest, NegativeRangesLargeStep) {
// Always include -1, 0, 1 when crossing zero.
std::vector<int> dst;
AddRange(&dst, -8, 8, 10);
EXPECT_THAT(dst, testing::ElementsAre(-8, -1, 0, 1, 8));
}
TEST(AddRangeTest, ZeroOnlyRange) {
std::vector<int> dst;
AddRange(&dst, 0, 0, 2);
EXPECT_THAT(dst, testing::ElementsAre(0));
}
TEST(AddRangeTest, ZeroStartingRange) {
std::vector<int> dst;
AddRange(&dst, 0, 2, 2);
EXPECT_THAT(dst, testing::ElementsAre(0, 1, 2));
}
TEST(AddRangeTest, NegativeRange64) {
std::vector<int64_t> dst;
AddRange<int64_t>(&dst, -4, 4, 2);
EXPECT_THAT(dst, testing::ElementsAre(-4, -2, -1, 0, 1, 2, 4));
}
TEST(AddRangeTest, NegativeRangePreservesExistingOrder) {
// If elements already exist in the range, ensure we don't change
// their ordering by adding negative values.
std::vector<int64_t> dst = {1, 2, 3};
AddRange<int64_t>(&dst, -2, 2, 2);
EXPECT_THAT(dst, testing::ElementsAre(1, 2, 3, -2, -1, 0, 1, 2));
}
TEST(AddRangeTest, FullNegativeRange64) {
std::vector<int64_t> dst;
const auto min = std::numeric_limits<int64_t>::min();
const auto max = std::numeric_limits<int64_t>::max();
AddRange(&dst, min, max, 1024);
EXPECT_THAT(
dst, testing::ElementsAreArray(std::vector<int64_t>{
min, -1152921504606846976LL, -1125899906842624LL,
-1099511627776LL, -1073741824LL, -1048576LL, -1024LL, -1LL, 0LL,
1LL, 1024LL, 1048576LL, 1073741824LL, 1099511627776LL,
1125899906842624LL, 1152921504606846976LL, max}));
}
TEST(AddRangeTest, Simple8) {
std::vector<int8_t> dst;
AddRange<int8_t>(&dst, int8_t{1}, int8_t{8}, int8_t{2});
EXPECT_THAT(dst,
testing::ElementsAre(int8_t{1}, int8_t{2}, int8_t{4}, int8_t{8}));
}
TEST(AddCustomContext, Simple) {
std::map<std::string, std::string> *&global_context = GetGlobalContext();
EXPECT_THAT(global_context, nullptr);
AddCustomContext("foo", "bar");
AddCustomContext("baz", "qux");
EXPECT_THAT(*global_context,
testing::UnorderedElementsAre(testing::Pair("foo", "bar"),
testing::Pair("baz", "qux")));
delete global_context;
global_context = nullptr;
}
TEST(AddCustomContext, DuplicateKey) {
std::map<std::string, std::string> *&global_context = GetGlobalContext();
EXPECT_THAT(global_context, nullptr);
AddCustomContext("foo", "bar");
AddCustomContext("foo", "qux");
EXPECT_THAT(*global_context,
testing::UnorderedElementsAre(testing::Pair("foo", "bar")));
delete global_context;
global_context = nullptr;
}
} // namespace
} // namespace internal
} // namespace benchmark
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