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gbench-stream/benchmark/test/args_product_test.cc
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args_product_test.cc
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#include <cassert>
#include <iostream>
#include <set>
#include <vector>
#include "benchmark/benchmark.h"
class ArgsProductFixture : public ::benchmark::Fixture {
public:
ArgsProductFixture()
: expectedValues({{0, 100, 2000, 30000},
{1, 15, 3, 8},
{1, 15, 3, 9},
{1, 15, 7, 8},
{1, 15, 7, 9},
{1, 15, 10, 8},
{1, 15, 10, 9},
{2, 15, 3, 8},
{2, 15, 3, 9},
{2, 15, 7, 8},
{2, 15, 7, 9},
{2, 15, 10, 8},
{2, 15, 10, 9},
{4, 5, 6, 11}}) {}
void SetUp(const ::benchmark::State& state) BENCHMARK_OVERRIDE {
std::vector<int64_t> ranges = {state.range(0), state.range(1),
state.range(2), state.range(3)};
assert(expectedValues.find(ranges) != expectedValues.end());
actualValues.insert(ranges);
}
// NOTE: This is not TearDown as we want to check after _all_ runs are
// complete.
virtual ~ArgsProductFixture() {
if (actualValues != expectedValues) {
std::cout << "EXPECTED\n";
for (const auto& v : expectedValues) {
std::cout << "{";
for (int64_t iv : v) {
std::cout << iv << ", ";
}
std::cout << "}\n";
}
std::cout << "ACTUAL\n";
for (const auto& v : actualValues) {
std::cout << "{";
for (int64_t iv : v) {
std::cout << iv << ", ";
}
std::cout << "}\n";
}
}
}
std::set<std::vector<int64_t>> expectedValues;
std::set<std::vector<int64_t>> actualValues;
};
BENCHMARK_DEFINE_F(ArgsProductFixture, Empty)(benchmark::State& state) {
for (auto _ : state) {
int64_t product =
state.range(0) * state.range(1) * state.range(2) * state.range(3);
for (int64_t x = 0; x < product; x++) {
benchmark::DoNotOptimize(x);
}
}
}
BENCHMARK_REGISTER_F(ArgsProductFixture, Empty)
->Args({0, 100, 2000, 30000})
->ArgsProduct({{1, 2}, {15}, {3, 7, 10}, {8, 9}})
->Args({4, 5, 6, 11});
BENCHMARK_MAIN();
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