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// Copyright 2019 Przemyslaw Bartosik
// Copyright 2019 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/mean.hpp>
#include <boost/histogram/accumulators/ostream.hpp>
#include <boost/histogram/axis/category.hpp>
#include <boost/histogram/axis/integer.hpp>
#include <boost/histogram/axis/option.hpp>
#include <boost/histogram/axis/regular.hpp>
#include <boost/histogram/make_histogram.hpp>
#include <boost/histogram/ostream.hpp>
#include <limits>
#include <sstream>
#include <string>
#include "throw_exception.hpp"
#include "utility_histogram.hpp"
using namespace boost::histogram;
template <class Histogram>
auto str(const Histogram& h, const unsigned width = 0) {
std::ostringstream os;
// BEGIN and END make nicer error messages
os << "BEGIN\n" << std::setw(width) << h << "END";
return os.str();
}
template <class Tag>
void run_tests() {
using R = axis::regular<>;
using R2 =
axis::regular<double, boost::use_default, axis::null_type, axis::option::none_t>;
using R3 = axis::regular<double, axis::transform::log>;
using C = axis::category<std::string>;
using I = axis::integer<>;
// regular
{
auto h = make(Tag(), R(3, -0.5, 1.0));
h.at(0) = 1;
h.at(1) = 10;
h.at(2) = 5;
const auto expected =
"BEGIN\n"
"histogram(regular(3, -0.5, 1, options=underflow | overflow))\n"
" +------------------------------------------------------------+\n"
"[-inf, -0.5) 0 | |\n"
"[-0.5, 0) 1 |====== |\n"
"[ 0, 0.5) 10 |=========================================================== |\n"
"[ 0.5, 1) 5 |============================== |\n"
"[ 1, inf) 0 | |\n"
" +------------------------------------------------------------+\n"
"END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
// regular, narrow
{
auto h = make(Tag(), R2(3, -0.5, 1.0));
h.at(0) = 1;
h.at(1) = 10;
h.at(2) = 2;
const auto expected = "BEGIN\n"
"histogram(regular(3, -0.5, 1, options=none))\n"
" +-----------------------+\n"
"[-0.5, 0) 1 |== |\n"
"[ 0, 0.5) 10 |====================== |\n"
"[ 0.5, 1) 2 |==== |\n"
" +-----------------------+\n"
"END";
BOOST_TEST_CSTR_EQ(str(h, 40).c_str(), expected);
// too narrow
BOOST_TEST_CSTR_EQ(str(h, 10).c_str(),
"BEGIN\n"
"histogram(regular(3, -0.5, 1, options=none))END");
}
// regular2
{
auto h = make(Tag(), R2(3, -0.5, 1.0));
h.at(0) = 1;
h.at(1) = -5;
h.at(2) = 2;
const auto expected =
"BEGIN\n"
"histogram(regular(3, -0.5, 1, options=none))\n"
" +-------------------------------------------------------------+\n"
"[-0.5, 0) 1 | ========= |\n"
"[ 0, 0.5) -5 |=========================================== |\n"
"[ 0.5, 1) 2 | ================= |\n"
" +-------------------------------------------------------------+\n"
"END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
// regular with log
{
auto h = make(Tag(), R3(6, 1e-3, 1e3, "foo"));
const auto expected =
"BEGIN\n"
"histogram(regular(transform::log{}, 6, 0.001, 1000, metadata=\"foo\", "
"options=underflow | overflow))\n"
" +-----------------------------------------------------------+\n"
"[ 0, 0.001) 0 | |\n"
"[0.001, 0.01) 0 | |\n"
"[ 0.01, 0.1) 0 | |\n"
"[ 0.1, 1) 0 | |\n"
"[ 1, 10) 0 | |\n"
"[ 10, 100) 0 | |\n"
"[ 100, 1000) 0 | |\n"
"[ 1000, inf) 0 | |\n"
" +-----------------------------------------------------------+\n"
"END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
// integer
{
auto h = make(Tag(), I(0, 1));
h.at(0) = -10;
h.at(1) = 5;
const auto expected =
"BEGIN\n"
"histogram(integer(0, 1, options=underflow | overflow))\n"
" +---------------------------------------------------------------------+\n"
"-1 0 | |\n"
" 0 -10 |============================================= |\n"
" 1 5 | ======================= |\n"
" +---------------------------------------------------------------------+\n"
"END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
// catorgy<string>
{
auto h = make(Tag(), C({"a", "bb", "ccc", "dddd"}));
h.at(0) = 1.23;
h.at(1) = 1;
h.at(2) = 1.2345789e-3;
h.at(3) = 1.2345789e-12;
h.at(4) = std::numeric_limits<double>::quiet_NaN();
const auto expected =
"BEGIN\n"
"histogram(category(\"a\", \"bb\", \"ccc\", \"dddd\", options=overflow))\n"
" +------------------------------------------------------------+\n"
" a 1.23 |=========================================================== |\n"
" bb 1 |================================================ |\n"
" ccc 0.001235 | |\n"
" dddd 1.235e-12 | |\n"
"other nan | |\n"
" +------------------------------------------------------------+\n"
"END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
// histogram with axis that has no value method
{
struct minimal_axis {
int index(int x) const { return x % 2; }
int size() const { return 2; }
};
auto h = make(Tag(), minimal_axis{});
h.at(0) = 3;
h.at(1) = 4;
const auto expected =
"BEGIN\n"
"histogram(" +
detail::type_name<minimal_axis>() +
")\n"
" +------------------------------------------------------------------------+\n"
"0 3 |===================================================== |\n"
"1 4 |======================================================================= |\n"
" +------------------------------------------------------------------------+\n"
"END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected.c_str());
}
// fallback for 2D
{
auto h = make(Tag(), R(1, -1, 1), R(2, -4, 7));
h.at(-1, 0) = 1000;
h.at(-1, -1) = 123;
h.at(1, 0) = 1.23456789;
h.at(-1, 2) = std::numeric_limits<double>::quiet_NaN();
const auto expected =
"BEGIN\n"
"histogram(\n"
" regular(1, -1, 1, options=underflow | overflow)\n"
" regular(2, -4, 7, options=underflow | overflow)\n"
" (-1 -1): 123 ( 0 -1): 0 ( 1 -1): 0 (-1 0): 1000 \n"
" ( 0 0): 0 ( 1 0): 1.235 (-1 1): 0 ( 0 1): 0 \n"
" ( 1 1): 0 (-1 2): nan ( 0 2): 0 ( 1 2): 0 \n"
")END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
// fallback for profile
{
auto h = make_s(Tag(), profile_storage(), R(1, -1, 1));
h.at(0) = accumulators::mean<>(10, 100, 1000);
const auto expected = "BEGIN\n"
"histogram(\n"
" regular(1, -1, 1, options=underflow | overflow)\n"
" (-1): mean(0, 0, -0) ( 0): mean(10, 100, 1000)\n"
" ( 1): mean(0, 0, -0) \n"
")END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
}
int main() {
run_tests<static_tag>();
run_tests<dynamic_tag>();
{
// cannot make empty static histogram
auto h = histogram<std::vector<axis::regular<>>>();
const auto expected = "BEGIN\n"
"histogram()END";
BOOST_TEST_CSTR_EQ(str(h).c_str(), expected);
}
return boost::report_errors();
}
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