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92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
// Testing:
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// State::PauseTiming()
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// State::ResumeTiming()
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// Test that CHECK's within these function diagnose when they are called
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// outside of the KeepRunning() loop.
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//
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// NOTE: Users should NOT include or use src/check.h. This is only done in
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// order to test library internals.
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#include <cstdlib>
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#include <stdexcept>
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#include "../src/check.h"
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#include "benchmark/benchmark.h"
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#if defined(__GNUC__) && !defined(__EXCEPTIONS)
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#define TEST_HAS_NO_EXCEPTIONS
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#endif
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void TestHandler() {
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#ifndef TEST_HAS_NO_EXCEPTIONS
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throw std::logic_error("");
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#else
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std::abort();
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#endif
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}
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void try_invalid_pause_resume(benchmark::State& state) {
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#if !defined(TEST_BENCHMARK_LIBRARY_HAS_NO_ASSERTIONS) && \
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!defined(TEST_HAS_NO_EXCEPTIONS)
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try {
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state.PauseTiming();
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std::abort();
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} catch (std::logic_error const&) {
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}
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try {
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state.ResumeTiming();
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std::abort();
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} catch (std::logic_error const&) {
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}
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#else
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(void)state; // avoid unused warning
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#endif
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}
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void BM_diagnostic_test(benchmark::State& state) {
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static bool called_once = false;
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if (called_once == false) try_invalid_pause_resume(state);
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for (auto _ : state) {
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auto iterations = state.iterations();
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benchmark::DoNotOptimize(iterations);
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}
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if (called_once == false) try_invalid_pause_resume(state);
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called_once = true;
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}
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BENCHMARK(BM_diagnostic_test);
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void BM_diagnostic_test_keep_running(benchmark::State& state) {
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static bool called_once = false;
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if (called_once == false) try_invalid_pause_resume(state);
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while (state.KeepRunning()) {
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auto iterations = state.iterations();
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benchmark::DoNotOptimize(iterations);
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}
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if (called_once == false) try_invalid_pause_resume(state);
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called_once = true;
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}
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BENCHMARK(BM_diagnostic_test_keep_running);
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int main(int argc, char* argv[]) {
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#ifdef NDEBUG
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// This test is exercising functionality for debug builds, which are not
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// available in release builds. Skip the test if we are in that environment
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// to avoid a test failure.
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std::cout << "Diagnostic test disabled in release build" << std::endl;
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(void)argc;
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(void)argv;
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#else
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benchmark::internal::GetAbortHandler() = &TestHandler;
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benchmark::Initialize(&argc, argv);
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benchmark::RunSpecifiedBenchmarks();
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#endif
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}
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