1
2 #undef NDEBUG
3 #include <cassert>
4 #include <vector>
5
6 #include "../src/check.h" // NOTE: check.h is for internal use only!
7 #include "benchmark/benchmark.h"
8
9 namespace {
10
11 class TestReporter : public benchmark::ConsoleReporter {
12 public:
ReportContext(const Context & context)13 virtual bool ReportContext(const Context& context) {
14 return ConsoleReporter::ReportContext(context);
15 };
16
ReportRuns(const std::vector<Run> & report)17 virtual void ReportRuns(const std::vector<Run>& report) {
18 all_runs_.insert(all_runs_.end(), begin(report), end(report));
19 ConsoleReporter::ReportRuns(report);
20 }
21
TestReporter()22 TestReporter() {}
~TestReporter()23 virtual ~TestReporter() {}
24
25 mutable std::vector<Run> all_runs_;
26 };
27
28 struct TestCase {
29 std::string name;
30 bool error_occurred;
31 std::string error_message;
32
33 typedef benchmark::BenchmarkReporter::Run Run;
34
CheckRun__anonbc35288b0111::TestCase35 void CheckRun(Run const& run) const {
36 CHECK(name == run.benchmark_name())
37 << "expected " << name << " got " << run.benchmark_name();
38 CHECK(error_occurred == run.error_occurred);
39 CHECK(error_message == run.error_message);
40 if (error_occurred) {
41 // CHECK(run.iterations == 0);
42 } else {
43 CHECK(run.iterations != 0);
44 }
45 }
46 };
47
48 std::vector<TestCase> ExpectedResults;
49
AddCases(const char * base_name,std::initializer_list<TestCase> const & v)50 int AddCases(const char* base_name, std::initializer_list<TestCase> const& v) {
51 for (auto TC : v) {
52 TC.name = base_name + TC.name;
53 ExpectedResults.push_back(std::move(TC));
54 }
55 return 0;
56 }
57
58 #define CONCAT(x, y) CONCAT2(x, y)
59 #define CONCAT2(x, y) x##y
60 #define ADD_CASES(...) int CONCAT(dummy, __LINE__) = AddCases(__VA_ARGS__)
61
62 } // end namespace
63
BM_error_before_running(benchmark::State & state)64 void BM_error_before_running(benchmark::State& state) {
65 state.SkipWithError("error message");
66 while (state.KeepRunning()) {
67 assert(false);
68 }
69 }
70 BENCHMARK(BM_error_before_running);
71 ADD_CASES("BM_error_before_running", {{"", true, "error message"}});
72
BM_error_before_running_batch(benchmark::State & state)73 void BM_error_before_running_batch(benchmark::State& state) {
74 state.SkipWithError("error message");
75 while (state.KeepRunningBatch(17)) {
76 assert(false);
77 }
78 }
79 BENCHMARK(BM_error_before_running_batch);
80 ADD_CASES("BM_error_before_running_batch", {{"", true, "error message"}});
81
BM_error_before_running_range_for(benchmark::State & state)82 void BM_error_before_running_range_for(benchmark::State& state) {
83 state.SkipWithError("error message");
84 for (auto _ : state) {
85 assert(false);
86 }
87 }
88 BENCHMARK(BM_error_before_running_range_for);
89 ADD_CASES("BM_error_before_running_range_for", {{"", true, "error message"}});
90
BM_error_during_running(benchmark::State & state)91 void BM_error_during_running(benchmark::State& state) {
92 int first_iter = true;
93 while (state.KeepRunning()) {
94 if (state.range(0) == 1 && state.thread_index <= (state.threads / 2)) {
95 assert(first_iter);
96 first_iter = false;
97 state.SkipWithError("error message");
98 } else {
99 state.PauseTiming();
100 state.ResumeTiming();
101 }
102 }
103 }
104 BENCHMARK(BM_error_during_running)->Arg(1)->Arg(2)->ThreadRange(1, 8);
105 ADD_CASES("BM_error_during_running", {{"/1/threads:1", true, "error message"},
106 {"/1/threads:2", true, "error message"},
107 {"/1/threads:4", true, "error message"},
108 {"/1/threads:8", true, "error message"},
109 {"/2/threads:1", false, ""},
110 {"/2/threads:2", false, ""},
111 {"/2/threads:4", false, ""},
112 {"/2/threads:8", false, ""}});
113
BM_error_during_running_ranged_for(benchmark::State & state)114 void BM_error_during_running_ranged_for(benchmark::State& state) {
115 assert(state.max_iterations > 3 && "test requires at least a few iterations");
116 int first_iter = true;
117 // NOTE: Users should not write the for loop explicitly.
118 for (auto It = state.begin(), End = state.end(); It != End; ++It) {
119 if (state.range(0) == 1) {
120 assert(first_iter);
121 first_iter = false;
122 state.SkipWithError("error message");
123 // Test the unfortunate but documented behavior that the ranged-for loop
124 // doesn't automatically terminate when SkipWithError is set.
125 assert(++It != End);
126 break; // Required behavior
127 }
128 }
129 }
130 BENCHMARK(BM_error_during_running_ranged_for)->Arg(1)->Arg(2)->Iterations(5);
131 ADD_CASES("BM_error_during_running_ranged_for",
132 {{"/1/iterations:5", true, "error message"},
133 {"/2/iterations:5", false, ""}});
134
BM_error_after_running(benchmark::State & state)135 void BM_error_after_running(benchmark::State& state) {
136 for (auto _ : state) {
137 benchmark::DoNotOptimize(state.iterations());
138 }
139 if (state.thread_index <= (state.threads / 2))
140 state.SkipWithError("error message");
141 }
142 BENCHMARK(BM_error_after_running)->ThreadRange(1, 8);
143 ADD_CASES("BM_error_after_running", {{"/threads:1", true, "error message"},
144 {"/threads:2", true, "error message"},
145 {"/threads:4", true, "error message"},
146 {"/threads:8", true, "error message"}});
147
BM_error_while_paused(benchmark::State & state)148 void BM_error_while_paused(benchmark::State& state) {
149 bool first_iter = true;
150 while (state.KeepRunning()) {
151 if (state.range(0) == 1 && state.thread_index <= (state.threads / 2)) {
152 assert(first_iter);
153 first_iter = false;
154 state.PauseTiming();
155 state.SkipWithError("error message");
156 } else {
157 state.PauseTiming();
158 state.ResumeTiming();
159 }
160 }
161 }
162 BENCHMARK(BM_error_while_paused)->Arg(1)->Arg(2)->ThreadRange(1, 8);
163 ADD_CASES("BM_error_while_paused", {{"/1/threads:1", true, "error message"},
164 {"/1/threads:2", true, "error message"},
165 {"/1/threads:4", true, "error message"},
166 {"/1/threads:8", true, "error message"},
167 {"/2/threads:1", false, ""},
168 {"/2/threads:2", false, ""},
169 {"/2/threads:4", false, ""},
170 {"/2/threads:8", false, ""}});
171
main(int argc,char * argv[])172 int main(int argc, char* argv[]) {
173 benchmark::Initialize(&argc, argv);
174
175 TestReporter test_reporter;
176 benchmark::RunSpecifiedBenchmarks(&test_reporter);
177
178 typedef benchmark::BenchmarkReporter::Run Run;
179 auto EB = ExpectedResults.begin();
180
181 for (Run const& run : test_reporter.all_runs_) {
182 assert(EB != ExpectedResults.end());
183 EB->CheckRun(run);
184 ++EB;
185 }
186 assert(EB == ExpectedResults.end());
187
188 return 0;
189 }
190