1*4d6fc14bSjoerg //===---------------------------------------------------------------------===//
2*4d6fc14bSjoerg // statistics_test - Unit tests for src/statistics.cc
3*4d6fc14bSjoerg //===---------------------------------------------------------------------===//
4*4d6fc14bSjoerg
5*4d6fc14bSjoerg #include "../src/statistics.h"
6*4d6fc14bSjoerg #include "gtest/gtest.h"
7*4d6fc14bSjoerg
8*4d6fc14bSjoerg namespace {
TEST(StatisticsTest,Mean)9*4d6fc14bSjoerg TEST(StatisticsTest, Mean) {
10*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsMean({42, 42, 42, 42}), 42.0);
11*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsMean({1, 2, 3, 4}), 2.5);
12*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsMean({1, 2, 5, 10, 10, 14}), 7.0);
13*4d6fc14bSjoerg }
14*4d6fc14bSjoerg
TEST(StatisticsTest,Median)15*4d6fc14bSjoerg TEST(StatisticsTest, Median) {
16*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsMedian({42, 42, 42, 42}), 42.0);
17*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsMedian({1, 2, 3, 4}), 2.5);
18*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsMedian({1, 2, 5, 10, 10}), 5.0);
19*4d6fc14bSjoerg }
20*4d6fc14bSjoerg
TEST(StatisticsTest,StdDev)21*4d6fc14bSjoerg TEST(StatisticsTest, StdDev) {
22*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsStdDev({101, 101, 101, 101}), 0.0);
23*4d6fc14bSjoerg EXPECT_DOUBLE_EQ(benchmark::StatisticsStdDev({1, 2, 3}), 1.0);
24*4d6fc14bSjoerg EXPECT_FLOAT_EQ(benchmark::StatisticsStdDev({1.5, 2.4, 3.3, 4.2, 5.1}),
25*4d6fc14bSjoerg 1.42302495);
26*4d6fc14bSjoerg }
27*4d6fc14bSjoerg
28*4d6fc14bSjoerg } // end namespace
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