third-party/benchmark/test/display_aggregates_only_test.cc

   1
   2 #undef NDEBUG
   3 #include <cstdio>
   4 #include <string>
   5
   6 #include "benchmark/benchmark.h"
   7 #include "output_test.h"
   8
   9 // Ok this test is super ugly. We want to check what happens with the file
  10 // reporter in the presence of DisplayAggregatesOnly().
  11 // We do not care about console output, the normal tests check that already.
  12
  13 void BM_SummaryRepeat(benchmark::State& state) {
  14   for (auto _ : state) {
  15   }
  16 }
  17 BENCHMARK(BM_SummaryRepeat)->Repetitions(3)->DisplayAggregatesOnly();
  18
  19 int main(int argc, char* argv[]) {
  20   const std::string output = GetFileReporterOutput(argc, argv);
  21
  22   if (SubstrCnt(output, "\"name\": \"BM_SummaryRepeat/repeats:3") != 7 ||
  23       SubstrCnt(output, "\"name\": \"BM_SummaryRepeat/repeats:3\"") != 3 ||
  24       SubstrCnt(output, "\"name\": \"BM_SummaryRepeat/repeats:3_mean\"") != 1 ||
  25       SubstrCnt(output, "\"name\": \"BM_SummaryRepeat/repeats:3_median\"") !=
  26           1 ||
  27       SubstrCnt(output, "\"name\": \"BM_SummaryRepeat/repeats:3_stddev\"") !=
  28           1 ||
  29       SubstrCnt(output, "\"name\": \"BM_SummaryRepeat/repeats:3_cv\"") != 1) {
  30     std::cout << "Precondition mismatch. Expected to only find 8 "
  31                  "occurrences of \"BM_SummaryRepeat/repeats:3\" substring:\n"
  32                  "\"name\": \"BM_SummaryRepeat/repeats:3\", "
  33                  "\"name\": \"BM_SummaryRepeat/repeats:3\", "
  34                  "\"name\": \"BM_SummaryRepeat/repeats:3\", "
  35                  "\"name\": \"BM_SummaryRepeat/repeats:3_mean\", "
  36                  "\"name\": \"BM_SummaryRepeat/repeats:3_median\", "
  37                  "\"name\": \"BM_SummaryRepeat/repeats:3_stddev\", "
  38                  "\"name\": \"BM_SummaryRepeat/repeats:3_cv\"\nThe entire "
  39                  "output:\n";
  40     std::cout << output;
  41     return 1;
  42   }
  43
  44   return 0;
  45 }