1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout synced 2024-11-12 21:09:01 +00:00
Sprout/libs/random/test/distribution_generic.hpp
2019-01-15 15:37:09 +09:00

81 lines
2 KiB
C++

#ifndef SPROUT_LIBS_RANDOM_TEST_DISTRIBUTION_GENERIC_HPP
#define SPROUT_LIBS_RANDOM_TEST_DISTRIBUTION_GENERIC_HPP
#include <string>
#include <sstream>
#include <sprout/random/linear_congruential.hpp>
#include <sprout/random/unique_seed.hpp>
#include <testspr/tools.hpp>
namespace testspr {
template<typename Distribution, typename Engine = sprout::random::minstd_rand0>
void random_distribution_test_generic() {
using namespace sprout;
{
SPROUT_STATIC_CONSTEXPR auto parm = typename Distribution::param_type();
SPROUT_STATIC_CONSTEXPR auto dist1 = Distribution(parm);
SPROUT_STATIC_CONSTEXPR auto dist2 = Distribution(parm);
// min
// max
TESTSPR_BOTH_ASSERT(dist1.min() <= dist1.max());
// param
TESTSPR_BOTH_ASSERT(parm == dist1.param());
{
auto dist_temp = Distribution();
dist_temp.param(parm);
TESTSPR_ASSERT(dist_temp == dist1);
}
// operator==
// operator!=
TESTSPR_BOTH_ASSERT(dist1 == dist2);
TESTSPR_BOTH_ASSERT(!(dist1 != dist2));
{
std::string s;
// operator<<
{
std::ostringstream os;
os << dist1;
TESTSPR_ASSERT(!!os);
s = os.str();
}
auto dist_temp = Distribution();
// operator>>
{
std::istringstream is(s);
is >> dist_temp;
TESTSPR_ASSERT(!!is);
}
TESTSPR_ASSERT(dist_temp == dist1);
}
// operator()
{
SPROUT_STATIC_CONSTEXPR auto eng = Engine(SPROUT_UNIQUE_SEED);
{
SPROUT_STATIC_CONSTEXPR auto rnd = dist1(eng);
// result
TESTSPR_BOTH_ASSERT(dist1.min() <= rnd.result());
TESTSPR_BOTH_ASSERT(rnd.result() <= dist1.max());
// engine
TESTSPR_BOTH_ASSERT(rnd.engine().min() <= rnd.engine().max());
// distribution
TESTSPR_BOTH_ASSERT(rnd.distribution().min() <= rnd.distribution().max());
}
}
}
}
} // namespace testspr
#endif // #ifndef SPROUT_LIBS_RANDOM_TEST_DISTRIBUTION_GENERIC_HPP