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#undef NDEBUG
#include "benchmark/benchmark.h"
#include "../src/check.h" // NOTE: check.h is for internal use only!
#include <cassert>
#include <vector>
namespace {
class TestReporter : public benchmark::ConsoleReporter {
public:
virtual void ReportRuns(const std::vector<Run>& report) {
all_runs_.insert(all_runs_.end(), begin(report), end(report));
ConsoleReporter::ReportRuns(report);
}
std::vector<Run> all_runs_;
};
struct TestCase {
std::string name;
const char* label;
TestCase(const char* xname) : name(xname), label(nullptr) {}
TestCase(const char* xname, const char* xlabel)
: name(xname), label(xlabel) {}
typedef benchmark::BenchmarkReporter::Run Run;
void CheckRun(Run const& run) const {
CHECK(name == run.benchmark_name) << "expected " << name
<< " got " << run.benchmark_name;
if (label) {
CHECK(run.report_label == label) << "expected " << label
<< " got " << run.report_label;
} else {
CHECK(run.report_label == "");
}
}
};
std::vector<TestCase> ExpectedResults;
int AddCases(std::initializer_list<TestCase> const& v) {
for (auto N : v) {
ExpectedResults.push_back(N);
}
return 0;
}
#define CONCAT(x, y) CONCAT2(x, y)
#define CONCAT2(x, y) x##y
#define ADD_CASES(...) \
int CONCAT(dummy, __LINE__) = AddCases({__VA_ARGS__})
} // end namespace
typedef benchmark::internal::Benchmark* ReturnVal;
//----------------------------------------------------------------------------//
// Test RegisterBenchmark with no additional arguments
//----------------------------------------------------------------------------//
void BM_function(benchmark::State& state) { while (state.KeepRunning()) {} }
BENCHMARK(BM_function);
ReturnVal dummy = benchmark::RegisterBenchmark(
"BM_function_manual_registration",
BM_function);
ADD_CASES({"BM_function"}, {"BM_function_manual_registration"});
//----------------------------------------------------------------------------//
// Test RegisterBenchmark with additional arguments
// Note: GCC <= 4.8 do not support this form of RegisterBenchmark because they
// reject the variadic pack expansion of lambda captures.
//----------------------------------------------------------------------------//
#ifndef BENCHMARK_HAS_NO_VARIADIC_REGISTER_BENCHMARK
void BM_extra_args(benchmark::State& st, const char* label) {
while (st.KeepRunning()) {}
st.SetLabel(label);
}
int RegisterFromFunction() {
std::pair<const char*, const char*> cases[] = {
{"test1", "One"},
{"test2", "Two"},
{"test3", "Three"}
};
for (auto& c : cases)
benchmark::RegisterBenchmark(c.first, &BM_extra_args, c.second);
return 0;
}
int dummy2 = RegisterFromFunction();
ADD_CASES(
{"test1", "One"},
{"test2", "Two"},
{"test3", "Three"}
);
#endif // BENCHMARK_HAS_NO_VARIADIC_REGISTER_BENCHMARK
//----------------------------------------------------------------------------//
// Test RegisterBenchmark with different callable types
//----------------------------------------------------------------------------//
struct CustomFixture {
void operator()(benchmark::State& st) {
while (st.KeepRunning()) {}
}
};
void TestRegistrationAtRuntime() {
#ifdef BENCHMARK_HAS_CXX11
{
CustomFixture fx;
benchmark::RegisterBenchmark("custom_fixture", fx);
AddCases({"custom_fixture"});
}
#endif
#ifndef BENCHMARK_HAS_NO_VARIADIC_REGISTER_BENCHMARK
{
int x = 42;
auto capturing_lam = [=](benchmark::State& st) {
while (st.KeepRunning()) {}
st.SetLabel(std::to_string(x));
};
benchmark::RegisterBenchmark("lambda_benchmark", capturing_lam);
AddCases({{"lambda_benchmark", "42"}});
}
#endif
}
int main(int argc, char* argv[]) {
TestRegistrationAtRuntime();
benchmark::Initialize(&argc, argv);
TestReporter test_reporter;
benchmark::RunSpecifiedBenchmarks(&test_reporter);
typedef benchmark::BenchmarkReporter::Run Run;
auto EB = ExpectedResults.begin();
for (Run const& run : test_reporter.all_runs_) {
assert(EB != ExpectedResults.end());
EB->CheckRun(run);
++EB;
}
assert(EB == ExpectedResults.end());
return 0;
}
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