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#undef NDEBUG
#include <cassert>
#include <vector>
#include "../src/check.h" // NOTE: check.h is for internal use only!
#include "benchmark/benchmark.h"
namespace {
class TestReporter : public benchmark::ConsoleReporter {
public:
virtual bool ReportContext(const Context& context) {
return ConsoleReporter::ReportContext(context);
};
virtual void ReportRuns(const std::vector<Run>& report) {
all_runs_.insert(all_runs_.end(), begin(report), end(report));
ConsoleReporter::ReportRuns(report);
}
TestReporter() {}
virtual ~TestReporter() {}
mutable std::vector<Run> all_runs_;
};
struct TestCase {
std::string name;
bool error_occurred;
std::string error_message;
typedef benchmark::BenchmarkReporter::Run Run;
void CheckRun(Run const& run) const {
CHECK(name == run.benchmark_name) << "expected " << name << " got "
<< run.benchmark_name;
CHECK(error_occurred == run.error_occurred);
CHECK(error_message == run.error_message);
if (error_occurred) {
// CHECK(run.iterations == 0);
} else {
CHECK(run.iterations != 0);
}
}
};
std::vector<TestCase> ExpectedResults;
int AddCases(const char* base_name, std::initializer_list<TestCase> const& v) {
for (auto TC : v) {
TC.name = base_name + TC.name;
ExpectedResults.push_back(std::move(TC));
}
return 0;
}
#define CONCAT(x, y) CONCAT2(x, y)
#define CONCAT2(x, y) x##y
#define ADD_CASES(...) int CONCAT(dummy, __LINE__) = AddCases(__VA_ARGS__)
} // end namespace
void BM_error_before_running(benchmark::State& state) {
state.SkipWithError("error message");
while (state.KeepRunning()) {
assert(false);
}
}
BENCHMARK(BM_error_before_running);
ADD_CASES("BM_error_before_running", {{"", true, "error message"}});
void BM_error_before_running_range_for(benchmark::State& state) {
state.SkipWithError("error message");
for (auto _ : state) {
assert(false);
}
}
BENCHMARK(BM_error_before_running_range_for);
ADD_CASES("BM_error_before_running_range_for", {{"", true, "error message"}});
void BM_error_during_running(benchmark::State& state) {
int first_iter = true;
while (state.KeepRunning()) {
if (state.range(0) == 1 && state.thread_index <= (state.threads / 2)) {
assert(first_iter);
first_iter = false;
state.SkipWithError("error message");
} else {
state.PauseTiming();
state.ResumeTiming();
}
}
}
BENCHMARK(BM_error_during_running)->Arg(1)->Arg(2)->ThreadRange(1, 8);
ADD_CASES("BM_error_during_running", {{"/1/threads:1", true, "error message"},
{"/1/threads:2", true, "error message"},
{"/1/threads:4", true, "error message"},
{"/1/threads:8", true, "error message"},
{"/2/threads:1", false, ""},
{"/2/threads:2", false, ""},
{"/2/threads:4", false, ""},
{"/2/threads:8", false, ""}});
void BM_error_during_running_ranged_for(benchmark::State& state) {
assert(state.max_iterations > 3 && "test requires at least a few iterations");
int first_iter = true;
// NOTE: Users should not write the for loop explicitly.
for (auto It = state.begin(), End = state.end(); It != End; ++It) {
if (state.range(0) == 1) {
assert(first_iter);
first_iter = false;
state.SkipWithError("error message");
// Test the unfortunate but documented behavior that the ranged-for loop
// doesn't automatically terminate when SkipWithError is set.
assert(++It != End);
break; // Required behavior
}
}
}
BENCHMARK(BM_error_during_running_ranged_for)->Arg(1)->Arg(2)->Iterations(5);
ADD_CASES("BM_error_during_running_ranged_for",
{{"/1/iterations:5", true, "error message"},
{"/2/iterations:5", false, ""}});
void BM_error_after_running(benchmark::State& state) {
for (auto _ : state) {
benchmark::DoNotOptimize(state.iterations());
}
if (state.thread_index <= (state.threads / 2))
state.SkipWithError("error message");
}
BENCHMARK(BM_error_after_running)->ThreadRange(1, 8);
ADD_CASES("BM_error_after_running", {{"/threads:1", true, "error message"},
{"/threads:2", true, "error message"},
{"/threads:4", true, "error message"},
{"/threads:8", true, "error message"}});
void BM_error_while_paused(benchmark::State& state) {
bool first_iter = true;
while (state.KeepRunning()) {
if (state.range(0) == 1 && state.thread_index <= (state.threads / 2)) {
assert(first_iter);
first_iter = false;
state.PauseTiming();
state.SkipWithError("error message");
} else {
state.PauseTiming();
state.ResumeTiming();
}
}
}
BENCHMARK(BM_error_while_paused)->Arg(1)->Arg(2)->ThreadRange(1, 8);
ADD_CASES("BM_error_while_paused", {{"/1/threads:1", true, "error message"},
{"/1/threads:2", true, "error message"},
{"/1/threads:4", true, "error message"},
{"/1/threads:8", true, "error message"},
{"/2/threads:1", false, ""},
{"/2/threads:2", false, ""},
{"/2/threads:4", false, ""},
{"/2/threads:8", false, ""}});
int main(int argc, char* argv[]) {
benchmark::Initialize(&argc, argv);
TestReporter test_reporter;
benchmark::RunSpecifiedBenchmarks(&test_reporter);
typedef benchmark::BenchmarkReporter::Run Run;
auto EB = ExpectedResults.begin();
for (Run const& run : test_reporter.all_runs_) {
assert(EB != ExpectedResults.end());
EB->CheckRun(run);
++EB;
}
assert(EB == ExpectedResults.end());
return 0;
}
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