test_random.cpp

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#include <boost/random/mersenne_twister.hpp>
#include <gtest/gtest.h>
#include <swri_math_util/random.h>

#include <ros/ros.h>

#ifdef BOOST_1_46
namespace boost_random = boost;
#else
namespace boost_random = boost::random;
#endif

TEST(RandomTests, GetUniformRandomSample)
{
  boost_random::mt19937 gen;

  std::vector<int32_t> sample;
  swri_math_util::GetUniformRandomSample<boost_random::mt19937>(gen, 0, 100, 10, sample);
  
  EXPECT_EQ(10, sample.size());
  
  swri_math_util::GetUniformRandomSample<boost_random::mt19937>(gen, 0, 100, 90, sample);
  EXPECT_EQ(90, sample.size());
}

TEST(RandomTests, RandomGenerator)
{
  swri_math_util::RandomGenerator gen;
  
  std::vector<int32_t> sample;
  gen.GetUniformRandomSample(0, 100, 10, sample);
  
  EXPECT_EQ(10, sample.size());
  
  gen.GetUniformRandomSample(0, 100, 90, sample);
  EXPECT_EQ(90, sample.size());
}

// Run all the tests that were declared with TEST()
int main(int argc, char **argv)
{
  testing::InitGoogleTest(&argc, argv);

  return RUN_ALL_TESTS();
}