| 1 | // Testing: |
|---|---|
| 2 | // State::PauseTiming() |
| 3 | // State::ResumeTiming() |
| 4 | // Test that CHECK's within these function diagnose when they are called |
| 5 | // outside of the KeepRunning() loop. |
| 6 | // |
| 7 | // NOTE: Users should NOT include or use src/check.h. This is only done in |
| 8 | // order to test library internals. |
| 9 | |
| 10 | #include <cstdlib> |
| 11 | #include <stdexcept> |
| 12 | |
| 13 | #include "../src/check.h" |
| 14 | #include "benchmark/benchmark.h" |
| 15 | |
| 16 | #if defined(__GNUC__) && !defined(__EXCEPTIONS) |
| 17 | #define TEST_HAS_NO_EXCEPTIONS |
| 18 | #endif |
| 19 | |
| 20 | void TestHandler() { |
| 21 | #ifndef TEST_HAS_NO_EXCEPTIONS |
| 22 | throw std::logic_error(""); |
| 23 | #else |
| 24 | std::abort(); |
| 25 | #endif |
| 26 | } |
| 27 | |
| 28 | void try_invalid_pause_resume(benchmark::State& state) { |
| 29 | #if !defined(TEST_BENCHMARK_LIBRARY_HAS_NO_ASSERTIONS) && \ |
| 30 | !defined(TEST_HAS_NO_EXCEPTIONS) |
| 31 | try { |
| 32 | state.PauseTiming(); |
| 33 | std::abort(); |
| 34 | } catch (std::logic_error const&) { |
| 35 | } |
| 36 | try { |
| 37 | state.ResumeTiming(); |
| 38 | std::abort(); |
| 39 | } catch (std::logic_error const&) { |
| 40 | } |
| 41 | #else |
| 42 | (void)state; // avoid unused warning |
| 43 | #endif |
| 44 | } |
| 45 | |
| 46 | void BM_diagnostic_test(benchmark::State& state) { |
| 47 | static bool called_once = false; |
| 48 | |
| 49 | if (called_once == false) try_invalid_pause_resume(state); |
| 50 | |
| 51 | for (auto _ : state) { |
| 52 | auto iterations = double(state.iterations()) * double(state.iterations()); |
| 53 | benchmark::DoNotOptimize(value&: iterations); |
| 54 | } |
| 55 | |
| 56 | if (called_once == false) try_invalid_pause_resume(state); |
| 57 | |
| 58 | called_once = true; |
| 59 | } |
| 60 | BENCHMARK(BM_diagnostic_test); |
| 61 | |
| 62 | void BM_diagnostic_test_keep_running(benchmark::State& state) { |
| 63 | static bool called_once = false; |
| 64 | |
| 65 | if (called_once == false) try_invalid_pause_resume(state); |
| 66 | |
| 67 | while (state.KeepRunning()) { |
| 68 | auto iterations = double(state.iterations()) * double(state.iterations()); |
| 69 | benchmark::DoNotOptimize(value&: iterations); |
| 70 | } |
| 71 | |
| 72 | if (called_once == false) try_invalid_pause_resume(state); |
| 73 | |
| 74 | called_once = true; |
| 75 | } |
| 76 | BENCHMARK(BM_diagnostic_test_keep_running); |
| 77 | |
| 78 | int main(int argc, char* argv[]) { |
| 79 | #ifdef NDEBUG |
| 80 | // This test is exercising functionality for debug builds, which are not |
| 81 | // available in release builds. Skip the test if we are in that environment |
| 82 | // to avoid a test failure. |
| 83 | std::cout << "Diagnostic test disabled in release build"<< std::endl; |
| 84 | (void)argc; |
| 85 | (void)argv; |
| 86 | #else |
| 87 | benchmark::internal::GetAbortHandler() = &TestHandler; |
| 88 | benchmark::Initialize(argc: &argc, argv); |
| 89 | benchmark::RunSpecifiedBenchmarks(); |
| 90 | #endif |
| 91 | } |
| 92 |