| 1 | #include <algorithm> |
|---|---|
| 2 | #include <cassert> |
| 3 | #include <cmath> |
| 4 | #include <cstdint> |
| 5 | #include <cstdlib> |
| 6 | #include <iostream> |
| 7 | #include <limits> |
| 8 | #include <sstream> |
| 9 | #include <string> |
| 10 | |
| 11 | #include "benchmark/benchmark.h" |
| 12 | |
| 13 | namespace { |
| 14 | |
| 15 | class TestReporter : public benchmark::ConsoleReporter { |
| 16 | public: |
| 17 | bool ReportContext(const Context& context) override { |
| 18 | return ConsoleReporter::ReportContext(context); |
| 19 | }; |
| 20 | |
| 21 | void ReportRuns(const std::vector<Run>& report) override { |
| 22 | ++count_; |
| 23 | max_family_index_ = std::max(a: max_family_index_, b: report[0].family_index); |
| 24 | ConsoleReporter::ReportRuns(reports: report); |
| 25 | }; |
| 26 | |
| 27 | TestReporter() : count_(0), max_family_index_(0) {} |
| 28 | |
| 29 | ~TestReporter() override {} |
| 30 | |
| 31 | int GetCount() const { return count_; } |
| 32 | |
| 33 | int64_t GetMaxFamilyIndex() const { return max_family_index_; } |
| 34 | |
| 35 | private: |
| 36 | mutable int count_; |
| 37 | mutable int64_t max_family_index_; |
| 38 | }; |
| 39 | |
| 40 | } // end namespace |
| 41 | |
| 42 | static void NoPrefix(benchmark::State& state) { |
| 43 | for (auto _ : state) { |
| 44 | } |
| 45 | } |
| 46 | BENCHMARK(NoPrefix); |
| 47 | |
| 48 | static void BM_Foo(benchmark::State& state) { |
| 49 | for (auto _ : state) { |
| 50 | } |
| 51 | } |
| 52 | BENCHMARK(BM_Foo); |
| 53 | |
| 54 | static void BM_Bar(benchmark::State& state) { |
| 55 | for (auto _ : state) { |
| 56 | } |
| 57 | } |
| 58 | BENCHMARK(BM_Bar); |
| 59 | |
| 60 | static void BM_FooBar(benchmark::State& state) { |
| 61 | for (auto _ : state) { |
| 62 | } |
| 63 | } |
| 64 | BENCHMARK(BM_FooBar); |
| 65 | |
| 66 | static void BM_FooBa(benchmark::State& state) { |
| 67 | for (auto _ : state) { |
| 68 | } |
| 69 | } |
| 70 | BENCHMARK(BM_FooBa); |
| 71 | |
| 72 | int main(int argc, char** argv) { |
| 73 | bool list_only = false; |
| 74 | for (int i = 0; i < argc; ++i) |
| 75 | list_only |= std::string(argv[i]).find(s: "--benchmark_list_tests") != |
| 76 | std::string::npos; |
| 77 | |
| 78 | benchmark::Initialize(argc: &argc, argv); |
| 79 | |
| 80 | TestReporter test_reporter; |
| 81 | const int64_t returned_count = |
| 82 | static_cast<int64_t>(benchmark::RunSpecifiedBenchmarks(display_reporter: &test_reporter)); |
| 83 | |
| 84 | if (argc == 2) { |
| 85 | // Make sure we ran all of the tests |
| 86 | std::stringstream ss(argv[1]); |
| 87 | int64_t expected_return; |
| 88 | ss >> expected_return; |
| 89 | |
| 90 | if (returned_count != expected_return) { |
| 91 | std::cerr << "ERROR: Expected "<< expected_return |
| 92 | << " tests to match the filter but returned_count = " |
| 93 | << returned_count << std::endl; |
| 94 | return -1; |
| 95 | } |
| 96 | |
| 97 | const int64_t expected_reports = list_only ? 0 : expected_return; |
| 98 | const int64_t reports_count = test_reporter.GetCount(); |
| 99 | if (reports_count != expected_reports) { |
| 100 | std::cerr << "ERROR: Expected "<< expected_reports |
| 101 | << " tests to be run but reported_count = "<< reports_count |
| 102 | << std::endl; |
| 103 | return -1; |
| 104 | } |
| 105 | |
| 106 | const int64_t max_family_index = test_reporter.GetMaxFamilyIndex(); |
| 107 | const int64_t num_families = reports_count == 0 ? 0 : 1 + max_family_index; |
| 108 | if (num_families != expected_reports) { |
| 109 | std::cerr << "ERROR: Expected "<< expected_reports |
| 110 | << " test families to be run but num_families = " |
| 111 | << num_families << std::endl; |
| 112 | return -1; |
| 113 | } |
| 114 | } |
| 115 | |
| 116 | return 0; |
| 117 | } |
| 118 |