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