6 #include "../src/check.h" // NOTE: check.h is for internal use only!
7 #include "benchmark/benchmark.h"
11 class TestReporter : public benchmark::ConsoleReporter {
13 virtual void ReportRuns(const std::vector<Run>& report) {
14 all_runs_.insert(all_runs_.end(), begin(report), end(report));
15 ConsoleReporter::ReportRuns(report);
18 std::vector<Run> all_runs_;
24 // Note: not explicit as we rely on it being converted through ADD_CASES.
25 TestCase(const char* xname) : TestCase(xname, nullptr) {}
26 TestCase(const char* xname, const char* xlabel)
27 : name(xname), label(xlabel) {}
29 typedef benchmark::BenchmarkReporter::Run Run;
31 void CheckRun(Run const& run) const {
32 CHECK(name == run.benchmark_name) << "expected " << name << " got "
33 << run.benchmark_name;
35 CHECK(run.report_label == label) << "expected " << label << " got "
38 CHECK(run.report_label == "");
43 std::vector<TestCase> ExpectedResults;
45 int AddCases(std::initializer_list<TestCase> const& v) {
47 ExpectedResults.push_back(N);
52 #define CONCAT(x, y) CONCAT2(x, y)
53 #define CONCAT2(x, y) x##y
54 #define ADD_CASES(...) int CONCAT(dummy, __LINE__) = AddCases({__VA_ARGS__})
58 typedef benchmark::internal::Benchmark* ReturnVal;
60 //----------------------------------------------------------------------------//
61 // Test RegisterBenchmark with no additional arguments
62 //----------------------------------------------------------------------------//
63 void BM_function(benchmark::State& state) {
64 while (state.KeepRunning()) {
67 BENCHMARK(BM_function);
68 ReturnVal dummy = benchmark::RegisterBenchmark(
69 "BM_function_manual_registration", BM_function);
70 ADD_CASES({"BM_function"}, {"BM_function_manual_registration"});
72 //----------------------------------------------------------------------------//
73 // Test RegisterBenchmark with additional arguments
74 // Note: GCC <= 4.8 do not support this form of RegisterBenchmark because they
75 // reject the variadic pack expansion of lambda captures.
76 //----------------------------------------------------------------------------//
77 #ifndef BENCHMARK_HAS_NO_VARIADIC_REGISTER_BENCHMARK
79 void BM_extra_args(benchmark::State& st, const char* label) {
80 while (st.KeepRunning()) {
84 int RegisterFromFunction() {
85 std::pair<const char*, const char*> cases[] = {
86 {"test1", "One"}, {"test2", "Two"}, {"test3", "Three"}};
87 for (auto const& c : cases)
88 benchmark::RegisterBenchmark(c.first, &BM_extra_args, c.second);
91 int dummy2 = RegisterFromFunction();
92 ADD_CASES({"test1", "One"}, {"test2", "Two"}, {"test3", "Three"});
94 #endif // BENCHMARK_HAS_NO_VARIADIC_REGISTER_BENCHMARK
96 //----------------------------------------------------------------------------//
97 // Test RegisterBenchmark with different callable types
98 //----------------------------------------------------------------------------//
100 struct CustomFixture {
101 void operator()(benchmark::State& st) {
102 while (st.KeepRunning()) {
107 void TestRegistrationAtRuntime() {
108 #ifdef BENCHMARK_HAS_CXX11
111 benchmark::RegisterBenchmark("custom_fixture", fx);
112 AddCases({"custom_fixture"});
115 #ifndef BENCHMARK_HAS_NO_VARIADIC_REGISTER_BENCHMARK
118 auto capturing_lam = [=](benchmark::State& st) {
119 while (st.KeepRunning()) {
121 st.SetLabel(std::to_string(x));
123 benchmark::RegisterBenchmark("lambda_benchmark", capturing_lam);
124 AddCases({{"lambda_benchmark", "42"}});
129 int main(int argc, char* argv[]) {
130 TestRegistrationAtRuntime();
132 benchmark::Initialize(&argc, argv);
134 TestReporter test_reporter;
135 benchmark::RunSpecifiedBenchmarks(&test_reporter);
137 typedef benchmark::BenchmarkReporter::Run Run;
138 auto EB = ExpectedResults.begin();
140 for (Run const& run : test_reporter.all_runs_) {
141 assert(EB != ExpectedResults.end());
145 assert(EB == ExpectedResults.end());