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