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// Copyright 2022 Hans Dembinski
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/core/lightweight_test.hpp>
#include <boost/histogram/accumulators/fraction.hpp>
#include <boost/histogram/utility/wilson_interval.hpp>
#include <cmath>
#include <limits>
#include "is_close.hpp"
#include "throw_exception.hpp"
using namespace boost::histogram::utility;
using namespace boost::histogram::accumulators;
template <class T>
void test() {
const double atol = std::numeric_limits<T>::epsilon();
wilson_interval<T> iv;
{
const auto x = iv(0, 0);
BOOST_TEST(std::isnan(x.first));
BOOST_TEST(std::isnan(x.second));
}
{
const auto x = iv(0, 1);
BOOST_TEST_IS_CLOSE(x.first, 0.0, atol);
BOOST_TEST_IS_CLOSE(x.second, 0.5, atol);
fraction<T> f(0, 1);
const auto y = iv(f);
BOOST_TEST_IS_CLOSE(y.first, 0.0, atol);
BOOST_TEST_IS_CLOSE(y.second, 0.5, atol);
}
{
const auto x = iv(1, 0);
BOOST_TEST_IS_CLOSE(x.first, 0.5, atol);
BOOST_TEST_IS_CLOSE(x.second, 1.0, atol);
fraction<T> f(1, 0);
const auto y = iv(f);
BOOST_TEST_IS_CLOSE(y.first, 0.5, atol);
BOOST_TEST_IS_CLOSE(y.second, 1.0, atol);
}
{
const auto x = iv(5, 5);
BOOST_TEST_IS_CLOSE(x.first, 0.3492443277111182, atol);
BOOST_TEST_IS_CLOSE(x.second, 0.6507556722888819, atol);
}
{
const auto x = iv(1, 9);
BOOST_TEST_IS_CLOSE(x.first, 0.03887449732033081, atol);
BOOST_TEST_IS_CLOSE(x.second, 0.23385277540694188, atol);
}
{
const auto x = iv(9, 1);
BOOST_TEST_IS_CLOSE(x.first, 0.7661472245930581, atol);
BOOST_TEST_IS_CLOSE(x.second, 0.9611255026796692, atol);
}
}
int main() {
test<float>();
test<double>();
return boost::report_errors();
}
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