benchmark/test/statistics_gtest.cc
Roman Lebedev 1e96bb0ab5
Support windows MSYS2 environments (#1704)
* [CI] Attempt to add windows MSYS2-based coverage

* Mark decl of `State::KeepRunningInternal()` as `inline`

Maybe helps with
```
D:\a\_temp\msys64\ucrt64\bin\g++.exe -DHAVE_STD_REGEX -DHAVE_STEADY_CLOCK -DTEST_BENCHMARK_LIBRARY_HAS_NO_ASSERTIONS -ID:/a/benchmark/benchmark/include -Wall  -Wextra  -Wshadow  -Wfloat-equal  -Wold-style-cast  -Werror  -pedantic  -pedantic-errors  -fstrict-aliasing  -Wno-deprecated-declarations  -Wno-deprecated  -Wstrict-aliasing  -Wno-unused-variable -std=c++11 -fvisibility=hidden -fno-keep-inline-dllexport   -UNDEBUG -MD -MT test/CMakeFiles/benchmark_test.dir/benchmark_test.cc.obj -MF test\CMakeFiles\benchmark_test.dir\benchmark_test.cc.obj.d -o test/CMakeFiles/benchmark_test.dir/benchmark_test.cc.obj -c D:/a/benchmark/benchmark/test/benchmark_test.cc
In file included from D:/a/benchmark/benchmark/test/benchmark_test.cc:1:
D:/a/benchmark/benchmark/include/benchmark/benchmark.h:1007:37: error: 'bool benchmark::State::KeepRunningInternal(benchmark::IterationCount, bool)' redeclared without dllimport attribute after being referenced with dll linkage [-Werror]
 1007 | inline BENCHMARK_ALWAYS_INLINE bool State::KeepRunningInternal(IterationCount n,
      |                                     ^~~~~
```

* Mark more `State`'s member function decls as `inline`

```
[27/110] Building CXX object test/CMakeFiles/spec_arg_verbosity_test.dir/spec_arg_verbosity_test.cc.obj
FAILED: test/CMakeFiles/spec_arg_verbosity_test.dir/spec_arg_verbosity_test.cc.obj
D:\a\_temp\msys64\clang32\bin\clang++.exe -DHAVE_STD_REGEX -DHAVE_STEADY_CLOCK -DHAVE_THREAD_SAFETY_ATTRIBUTES -DTEST_BENCHMARK_LIBRARY_HAS_NO_ASSERTIONS -ID:/a/benchmark/benchmark/include -Wall  -Wextra  -Wshadow  -Wfloat-equal  -Wold-style-cast  -Werror  -pedantic  -pedantic-errors  -Wshorten-64-to-32  -fstrict-aliasing  -Wno-deprecated-declarations  -Wno-deprecated  -Wstrict-aliasing  -Wthread-safety  -Wno-unused-variable -std=c++11 -fvisibility=hidden -fvisibility-inlines-hidden   -UNDEBUG -MD -MT test/CMakeFiles/spec_arg_verbosity_test.dir/spec_arg_verbosity_test.cc.obj -MF test\CMakeFiles\spec_arg_verbosity_test.dir\spec_arg_verbosity_test.cc.obj.d -o test/CMakeFiles/spec_arg_verbosity_test.dir/spec_arg_verbosity_test.cc.obj -c D:/a/benchmark/benchmark/test/spec_arg_verbosity_test.cc
In file included from D:/a/benchmark/benchmark/test/spec_arg_verbosity_test.cc:5:
D:/a/benchmark/benchmark/include/benchmark/benchmark.h:999:44: error: 'benchmark::State::KeepRunning' redeclared inline; 'dllimport' attribute ignored [-Werror,-Wignored-attributes]
  999 | inline BENCHMARK_ALWAYS_INLINE bool State::KeepRunning() {
      |                                            ^
D:/a/benchmark/benchmark/include/benchmark/benchmark.h:1003:44: error: 'benchmark::State::KeepRunningBatch' redeclared inline; 'dllimport' attribute ignored [-Werror,-Wignored-attributes]
 1003 | inline BENCHMARK_ALWAYS_INLINE bool State::KeepRunningBatch(IterationCount n) {
      |                                            ^
D:/a/benchmark/benchmark/include/benchmark/benchmark.h:1075:60: error: 'benchmark::State::begin' redeclared inline; 'dllimport' attribute ignored [-Werror,-Wignored-attributes]
 1075 | inline BENCHMARK_ALWAYS_INLINE State::StateIterator State::begin() {
      |                                                            ^
D:/a/benchmark/benchmark/include/benchmark/benchmark.h:1078:60: error: 'benchmark::State::end' redeclared inline; 'dllimport' attribute ignored [-Werror,-Wignored-attributes]

 1078 | inline BENCHMARK_ALWAYS_INLINE State::StateIterator State::end() {

      |                                                            ^

```

* StatisticsTest.CV: don't require precise FP match, tolerate some abs error

We get ever so slightly different results on windows with GCC.
```
71: Test command: D:\a\benchmark\benchmark\_build\test\statistics_gtest.exe
71: Working Directory: D:/a/benchmark/benchmark/_build/test
71: Test timeout computed to be: 10000000
71: Running main() from gmock_main.cc
71: [==========] Running 4 tests from 1 test suite.
71: [----------] Global test environment set-up.
71: [----------] 4 tests from StatisticsTest
71: [ RUN      ] StatisticsTest.Mean
71: [       OK ] StatisticsTest.Mean (0 ms)
71: [ RUN      ] StatisticsTest.Median
71: [       OK ] StatisticsTest.Median (0 ms)
71: [ RUN      ] StatisticsTest.StdDev
71: [       OK ] StatisticsTest.StdDev (0 ms)
71: [ RUN      ] StatisticsTest.CV
71: D:/a/benchmark/benchmark/test/statistics_gtest.cc:31: Failure
71: Expected equality of these values:
71:   benchmark::StatisticsCV({2.5, 2.4, 3.3, 4.2, 5.1})
71:     Which is: 0.32888184094918088
71:   0.32888184094918121
71: [  FAILED  ] StatisticsTest.CV (0 ms)
71: [----------] 4 tests from StatisticsTest (0 ms total)
```

* Fix DLL path discovery for tests
2023-11-23 17:47:04 +03:00

36 lines
1.3 KiB
C++

//===---------------------------------------------------------------------===//
// statistics_test - Unit tests for src/statistics.cc
//===---------------------------------------------------------------------===//
#include "../src/statistics.h"
#include "gtest/gtest.h"
namespace {
TEST(StatisticsTest, Mean) {
EXPECT_DOUBLE_EQ(benchmark::StatisticsMean({42, 42, 42, 42}), 42.0);
EXPECT_DOUBLE_EQ(benchmark::StatisticsMean({1, 2, 3, 4}), 2.5);
EXPECT_DOUBLE_EQ(benchmark::StatisticsMean({1, 2, 5, 10, 10, 14}), 7.0);
}
TEST(StatisticsTest, Median) {
EXPECT_DOUBLE_EQ(benchmark::StatisticsMedian({42, 42, 42, 42}), 42.0);
EXPECT_DOUBLE_EQ(benchmark::StatisticsMedian({1, 2, 3, 4}), 2.5);
EXPECT_DOUBLE_EQ(benchmark::StatisticsMedian({1, 2, 5, 10, 10}), 5.0);
}
TEST(StatisticsTest, StdDev) {
EXPECT_DOUBLE_EQ(benchmark::StatisticsStdDev({101, 101, 101, 101}), 0.0);
EXPECT_DOUBLE_EQ(benchmark::StatisticsStdDev({1, 2, 3}), 1.0);
EXPECT_DOUBLE_EQ(benchmark::StatisticsStdDev({2.5, 2.4, 3.3, 4.2, 5.1}),
1.151086443322134);
}
TEST(StatisticsTest, CV) {
EXPECT_DOUBLE_EQ(benchmark::StatisticsCV({101, 101, 101, 101}), 0.0);
EXPECT_DOUBLE_EQ(benchmark::StatisticsCV({1, 2, 3}), 1. / 2.);
ASSERT_NEAR(benchmark::StatisticsCV({2.5, 2.4, 3.3, 4.2, 5.1}),
0.32888184094918121, 1e-15);
}
} // end namespace