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histogram/test/axis_test.cpp
Hans Dembinski d4dbae92f5 clang-format everything
2018-07-21 17:27:18 +02:00

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// Copyright 2015-2017 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/axis/any.hpp>
#include <boost/histogram/axis/ostream_operators.hpp>
#include <boost/histogram/axis/types.hpp>
#include <boost/histogram/detail/axis_visitor.hpp>
#include <boost/histogram/detail/utility.hpp>
#include <boost/histogram/histogram_fwd.hpp>
#include <limits>
#include <sstream>
#include <string>
using namespace boost::histogram;
#define BOOST_TEST_NOT(expr) BOOST_TEST(!(expr))
#define BOOST_TEST_IS_CLOSE(a, b, eps) BOOST_TEST(std::abs(a - b) < eps)
template <typename Axis>
void test_axis_iterator(const Axis& a, int begin, int end) {
for (auto bin : a) {
BOOST_TEST_EQ(bin.idx(), begin);
BOOST_TEST_EQ(bin, a[begin]);
++begin;
}
BOOST_TEST_EQ(begin, end);
auto rit = a.rbegin();
for (; rit != a.rend(); ++rit) {
BOOST_TEST_EQ(rit->idx(), --begin);
BOOST_TEST_EQ(*rit, a[begin]);
}
}
int main() {
// bad_ctors
{
BOOST_TEST_THROWS(axis::regular<>(0, 0, 1), std::logic_error);
BOOST_TEST_THROWS(axis::regular<>(1, 1, -1), std::logic_error);
BOOST_TEST_THROWS(axis::circular<>(0), std::logic_error);
BOOST_TEST_THROWS(axis::variable<>({}), std::logic_error);
BOOST_TEST_THROWS(axis::variable<>({1.0}), std::logic_error);
BOOST_TEST_THROWS(axis::integer<>(1, -1), std::logic_error);
BOOST_TEST_THROWS(axis::category<>({}), std::logic_error);
}
// axis::regular
{
axis::regular<> a{4, -2, 2};
BOOST_TEST_EQ(a[-1].lower(), -std::numeric_limits<double>::infinity());
BOOST_TEST_EQ(a[a.size()].upper(),
std::numeric_limits<double>::infinity());
axis::regular<> b;
BOOST_TEST_NOT(a == b);
b = a;
BOOST_TEST_EQ(a, b);
b = b;
BOOST_TEST_EQ(a, b);
axis::regular<> c = std::move(b);
BOOST_TEST(c == a);
BOOST_TEST_NOT(b == a);
axis::regular<> d;
BOOST_TEST_NOT(c == d);
d = std::move(c);
BOOST_TEST_EQ(d, a);
BOOST_TEST_EQ(a.index(-10.), -1);
BOOST_TEST_EQ(a.index(-2.1), -1);
BOOST_TEST_EQ(a.index(-2.0), 0);
BOOST_TEST_EQ(a.index(-1.1), 0);
BOOST_TEST_EQ(a.index(0.0), 2);
BOOST_TEST_EQ(a.index(0.9), 2);
BOOST_TEST_EQ(a.index(1.0), 3);
BOOST_TEST_EQ(a.index(10.), 4);
BOOST_TEST_EQ(a.index(std::numeric_limits<double>::infinity()), 4);
BOOST_TEST_EQ(a.index(-std::numeric_limits<double>::infinity()), -1);
BOOST_TEST_EQ(a.index(std::numeric_limits<double>::quiet_NaN()), -1);
}
// axis::regular with log transform
{
axis::regular<double, axis::transform::log> b{2, 1e0, 1e2};
BOOST_TEST_EQ(b[-1].lower(), 0.0);
BOOST_TEST_IS_CLOSE(b[0].lower(), 1.0, 1e-9);
BOOST_TEST_IS_CLOSE(b[1].lower(), 10.0, 1e-9);
BOOST_TEST_IS_CLOSE(b[2].lower(), 100.0, 1e-9);
BOOST_TEST_EQ(b[2].upper(), std::numeric_limits<double>::infinity());
BOOST_TEST_EQ(b.index(-1), -1);
BOOST_TEST_EQ(b.index(0), -1);
BOOST_TEST_EQ(b.index(1), 0);
BOOST_TEST_EQ(b.index(9), 0);
BOOST_TEST_EQ(b.index(10), 1);
BOOST_TEST_EQ(b.index(90), 1);
BOOST_TEST_EQ(b.index(100), 2);
BOOST_TEST_EQ(b.index(std::numeric_limits<double>::infinity()), 2);
}
// axis::regular with sqrt transform
{
axis::regular<double, axis::transform::sqrt> b{2, 0, 4};
// this is weird: -inf * -inf = inf, thus the lower bound
BOOST_TEST_EQ(b[-1].lower(), std::numeric_limits<double>::infinity());
BOOST_TEST_IS_CLOSE(b[0].lower(), 0.0, 1e-9);
BOOST_TEST_IS_CLOSE(b[1].lower(), 1.0, 1e-9);
BOOST_TEST_IS_CLOSE(b[2].lower(), 4.0, 1e-9);
BOOST_TEST_EQ(b[2].upper(), std::numeric_limits<double>::infinity());
BOOST_TEST_EQ(b.index(-1), -1);
BOOST_TEST_EQ(b.index(0), 0);
BOOST_TEST_EQ(b.index(0.99), 0);
BOOST_TEST_EQ(b.index(1), 1);
BOOST_TEST_EQ(b.index(3.99), 1);
BOOST_TEST_EQ(b.index(4), 2);
BOOST_TEST_EQ(b.index(100), 2);
BOOST_TEST_EQ(b.index(std::numeric_limits<double>::infinity()), 2);
}
// axis::circular
{
axis::circular<> a{4};
BOOST_TEST_EQ(a[-1].lower(), a[a.size() - 1].lower() - a.perimeter());
axis::circular<> b;
BOOST_TEST_NOT(a == b);
b = a;
BOOST_TEST_EQ(a, b);
b = b;
BOOST_TEST_EQ(a, b);
axis::circular<> c = std::move(b);
BOOST_TEST(c == a);
BOOST_TEST_NOT(b == a);
axis::circular<> d;
BOOST_TEST_NOT(c == d);
d = std::move(c);
BOOST_TEST_EQ(d, a);
BOOST_TEST_EQ(a.index(-1.0 * a.perimeter()), 0);
BOOST_TEST_EQ(a.index(0.0), 0);
BOOST_TEST_EQ(a.index(0.25 * a.perimeter()), 1);
BOOST_TEST_EQ(a.index(0.5 * a.perimeter()), 2);
BOOST_TEST_EQ(a.index(0.75 * a.perimeter()), 3);
BOOST_TEST_EQ(a.index(1.00 * a.perimeter()), 0);
BOOST_TEST_EQ(a.index(std::numeric_limits<double>::infinity()), 0);
BOOST_TEST_EQ(a.index(-std::numeric_limits<double>::infinity()), 0);
BOOST_TEST_EQ(a.index(std::numeric_limits<double>::quiet_NaN()), 0);
}
// axis::variable
{
axis::variable<> a{-1, 0, 1};
BOOST_TEST_EQ(a[-1].lower(), -std::numeric_limits<double>::infinity());
BOOST_TEST_EQ(a[a.size()].upper(),
std::numeric_limits<double>::infinity());
axis::variable<> b;
BOOST_TEST_NOT(a == b);
b = a;
BOOST_TEST_EQ(a, b);
b = b;
BOOST_TEST_EQ(a, b);
axis::variable<> c = std::move(b);
BOOST_TEST(c == a);
BOOST_TEST_NOT(b == a);
axis::variable<> d;
BOOST_TEST_NOT(c == d);
d = std::move(c);
BOOST_TEST_EQ(d, a);
axis::variable<> e{-2, 0, 2};
BOOST_TEST_NOT(a == e);
BOOST_TEST_EQ(a.index(-10.), -1);
BOOST_TEST_EQ(a.index(-1.), 0);
BOOST_TEST_EQ(a.index(0.), 1);
BOOST_TEST_EQ(a.index(1.), 2);
BOOST_TEST_EQ(a.index(10.), 2);
BOOST_TEST_EQ(a.index(std::numeric_limits<double>::infinity()), 2);
BOOST_TEST_EQ(a.index(-std::numeric_limits<double>::infinity()), -1);
BOOST_TEST_EQ(a.index(std::numeric_limits<double>::quiet_NaN()), 2);
}
// axis::integer
{
axis::integer<> a{-1, 2};
BOOST_TEST_EQ(a[-1].lower(), -std::numeric_limits<int>::max());
BOOST_TEST_EQ(a[a.size()].upper(), std::numeric_limits<int>::max());
axis::integer<> b;
BOOST_TEST_NOT(a == b);
b = a;
BOOST_TEST_EQ(a, b);
b = b;
BOOST_TEST_EQ(a, b);
axis::integer<> c = std::move(b);
BOOST_TEST(c == a);
BOOST_TEST_NOT(b == a);
axis::integer<> d;
BOOST_TEST_NOT(c == d);
d = std::move(c);
BOOST_TEST_EQ(d, a);
BOOST_TEST_EQ(a.index(-10), -1);
BOOST_TEST_EQ(a.index(-2), -1);
BOOST_TEST_EQ(a.index(-1), 0);
BOOST_TEST_EQ(a.index(0), 1);
BOOST_TEST_EQ(a.index(1), 2);
BOOST_TEST_EQ(a.index(2), 3);
BOOST_TEST_EQ(a.index(10), 3);
}
// axis::category
{
std::string A("A"), B("B"), C("C");
axis::category<std::string> a{{A, B, C}};
axis::category<std::string> b;
BOOST_TEST_NOT(a == b);
b = a;
BOOST_TEST_EQ(a, b);
b = b;
BOOST_TEST_EQ(a, b);
axis::category<std::string> c = std::move(b);
BOOST_TEST(c == a);
BOOST_TEST_NOT(b == a);
axis::category<std::string> d;
BOOST_TEST_NOT(c == d);
d = std::move(c);
BOOST_TEST_EQ(d, a);
BOOST_TEST_EQ(a.size(), 3);
BOOST_TEST_EQ(a.index(A), 0);
BOOST_TEST_EQ(a.index(B), 1);
BOOST_TEST_EQ(a.index(C), 2);
BOOST_TEST_EQ(a.value(0), A);
BOOST_TEST_EQ(a.value(1), B);
BOOST_TEST_EQ(a.value(2), C);
}
// iterators
{
enum { A, B, C };
test_axis_iterator(axis::regular<>(5, 0, 1, "", axis::uoflow::off), 0, 5);
test_axis_iterator(axis::regular<>(5, 0, 1, "", axis::uoflow::on), 0, 5);
test_axis_iterator(axis::circular<>(5, 0, 1, ""), 0, 5);
test_axis_iterator(axis::variable<>({1, 2, 3}, ""), 0, 2);
test_axis_iterator(axis::integer<>(0, 4, ""), 0, 4);
test_axis_iterator(axis::category<>({A, B, C}, ""), 0, 3);
test_axis_iterator(axis::any_std(axis::regular<>(5, 0, 1)), 0, 5);
BOOST_TEST_THROWS(axis::any_std(axis::category<>({A, B, C})).lower(0),
std::runtime_error);
}
// axis::any copyable
{
axis::any_std a1(axis::regular<>(2, -1, 1));
axis::any_std a2(a1);
BOOST_TEST_EQ(a1, a2);
axis::any_std a3;
BOOST_TEST_NE(a3, a1);
a3 = a1;
BOOST_TEST_EQ(a3, a1);
axis::any<axis::regular<>> a4(axis::regular<>(3, -2, 2));
axis::any_std a5(a4);
BOOST_TEST_EQ(a4, a5);
axis::any<axis::regular<>> a6;
a6 = a1;
BOOST_TEST_EQ(a6, a1);
axis::any<axis::regular<>, axis::integer<>> a7(axis::integer<>(0, 2));
BOOST_TEST_THROWS(axis::any<axis::regular<>> a8(a7),
std::invalid_argument);
BOOST_TEST_THROWS(a4 = a7, std::invalid_argument);
}
// axis::any movable
{
axis::any_std a(axis::regular<>(2, -1, 1));
axis::any_std r(a);
axis::any_std b(std::move(a));
BOOST_TEST_EQ(b, r);
axis::any_std c;
BOOST_TEST_NOT(a == c);
c = std::move(b);
BOOST_TEST(c == r);
}
// axis::any streamable
{
enum { A, B, C };
std::string a = "A";
std::string b = "B";
std::vector<axis::any_std> axes;
axes.push_back(axis::regular<>{2, -1, 1, "regular1"});
axes.push_back(axis::regular<double, axis::transform::log>(
2, 1, 10, "regular2", axis::uoflow::off));
axes.push_back(axis::regular<double, axis::transform::pow>(
2, 1, 10, "regular3", axis::uoflow::on, 0.5));
axes.push_back(axis::regular<double, axis::transform::pow>(
2, 1, 10, "regular4", axis::uoflow::off, -0.5));
axes.push_back(axis::circular<>(4, 0.1, 1.0, "polar"));
axes.push_back(
axis::variable<>({-1, 0, 1}, "variable", axis::uoflow::off));
axes.push_back(axis::category<>({A, B, C}, "category"));
axes.push_back(axis::category<std::string>({a, b}, "category2"));
axes.push_back(axis::integer<>(-1, 1, "integer", axis::uoflow::off));
std::ostringstream os;
for (const auto& a : axes) { os << a << "\n"; }
const std::string ref =
"regular(2, -1, 1, label='regular1')\n"
"regular_log(2, 1, 10, label='regular2', uoflow=False)\n"
"regular_pow(2, 1, 10, 0.5, label='regular3')\n"
"regular_pow(2, 1, 10, -0.5, label='regular4', uoflow=False)\n"
"circular(4, phase=0.1, perimeter=1, label='polar')\n"
"variable(-1, 0, 1, label='variable', uoflow=False)\n"
"category(0, 1, 2, label='category')\n"
"category('A', 'B', label='category2')\n"
"integer(-1, 1, label='integer', uoflow=False)\n";
BOOST_TEST_EQ(os.str(), ref);
}
// axis::any equal_comparable
{
enum { A, B, C };
std::vector<axis::any_std> axes;
axes.push_back(axis::regular<>{2, -1, 1});
axes.push_back(axis::circular<>{4});
axes.push_back(axis::variable<>{-1, 0, 1});
axes.push_back(axis::category<>{A, B, C});
axes.push_back(axis::integer<>{-1, 1});
for (const auto& a : axes) {
BOOST_TEST(!(a == axis::any_std()));
BOOST_TEST_EQ(a, a);
}
BOOST_TEST_NOT(axes == std::vector<axis::any_std>());
BOOST_TEST(axes == std::vector<axis::any_std>(axes));
}
// axis::any value_to_index_failure
{
std::string a = "A", b = "B";
axis::any_std x = axis::category<std::string>({a, b}, "category");
BOOST_TEST_THROWS(x.index(1.5), std::runtime_error);
auto cx = static_cast<const axis::category<std::string>&>(x);
BOOST_TEST_EQ(cx.index(b), 1);
}
// sequence equality
{
enum { A, B, C };
std::vector<axis::any<axis::regular<>, axis::variable<>, axis::category<>,
axis::integer<>>>
std_vector1 = {axis::regular<>{2, -1, 1}, axis::variable<>{-1, 0, 1},
axis::category<>{A, B, C}};
std::vector<
axis::any<axis::regular<>, axis::variable<>, axis::category<>>>
std_vector2 = {axis::regular<>{2, -1, 1}, axis::variable<>{-1, 0, 1},
axis::category<>{{A, B, C}}};
std::vector<axis::any<axis::regular<>, axis::variable<>>> std_vector3 = {
axis::variable<>{-1, 0, 1}, axis::regular<>{2, -1, 1}};
std::vector<axis::any<axis::variable<>, axis::regular<>>> std_vector4 = {
axis::regular<>{2, -1, 1}, axis::variable<>{-1, 0, 1}};
BOOST_TEST(detail::axes_equal(std_vector1, std_vector2));
BOOST_TEST_NOT(detail::axes_equal(std_vector2, std_vector3));
BOOST_TEST_NOT(detail::axes_equal(std_vector3, std_vector4));
auto tuple1 =
std::make_tuple(axis::regular<>{2, -1, 1}, axis::variable<>{-1, 0, 1},
axis::category<>{{A, B, C}});
auto tuple2 =
std::make_tuple(axis::regular<>{2, -1, 1}, axis::variable<>{-1, 0, 1},
axis::category<>{{A, B}});
auto tuple3 = std::make_tuple(axis::regular<>{2, -1, 1},
axis::variable<>{-1, 0, 1});
BOOST_TEST(detail::axes_equal(std_vector1, tuple1));
BOOST_TEST(detail::axes_equal(tuple1, std_vector1));
BOOST_TEST_NOT(detail::axes_equal(tuple1, tuple2));
BOOST_TEST_NOT(detail::axes_equal(tuple2, tuple3));
BOOST_TEST_NOT(detail::axes_equal(std_vector3, tuple3));
}
// sequence assign
{
enum { A, B, C, D };
std::vector<axis::any<axis::regular<>, axis::variable<>, axis::category<>,
axis::integer<>>>
std_vector1 = {axis::regular<>{2, -1, 1}, axis::variable<>{-1, 0, 1},
axis::category<>{A, B, C}};
std::vector<
axis::any<axis::regular<>, axis::variable<>, axis::category<>>>
std_vector2 = {axis::regular<>{2, -2, 2}, axis::variable<>{-2, 0, 2},
axis::category<>{A, B}};
detail::axes_assign(std_vector2, std_vector1);
BOOST_TEST(detail::axes_equal(std_vector2, std_vector1));
auto tuple1 =
std::make_tuple(axis::regular<>{2, -3, 3}, axis::variable<>{-3, 0, 3},
axis::category<>{A, B, C, D});
detail::axes_assign(tuple1, std_vector1);
BOOST_TEST(detail::axes_equal(tuple1, std_vector1));
decltype(std_vector1) std_vector3;
BOOST_TEST_NOT(detail::axes_equal(std_vector3, tuple1));
detail::axes_assign(std_vector3, tuple1);
BOOST_TEST(detail::axes_equal(std_vector3, tuple1));
auto tuple2 =
std::make_tuple(axis::regular<>{2, -1, 1}, axis::variable<>{-1, 0, 1},
axis::category<>{A, B});
detail::axes_assign(tuple2, tuple1);
BOOST_TEST(detail::axes_equal(tuple2, tuple1));
}
return boost::report_errors();
}
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