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https://github.com/boostorg/histogram.git
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97f8b7dd91
* new tests of nothrow move assignment for builtin axis types * switch to xenial, which apparently comes with a different glibc version that adds a nothrow move assignment operator for std::string
150 lines
4.9 KiB
C++
150 lines
4.9 KiB
C++
// Copyright 2015-2017 Hans Dembinski
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt
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// or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/core/lightweight_test.hpp>
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#include <boost/histogram/axis/variable.hpp>
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#include <boost/histogram/detail/throw_exception.hpp>
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#include <limits>
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#include <type_traits>
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#include <vector>
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#include "is_close.hpp"
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#include "utility_axis.hpp"
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using namespace boost::histogram;
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int main() {
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BOOST_TEST(std::is_nothrow_move_assignable<axis::variable<>>::value);
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// bad_ctors
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{
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auto empty = std::vector<double>(0);
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BOOST_TEST_THROWS((axis::variable<>(empty)), std::invalid_argument);
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BOOST_TEST_THROWS(axis::variable<>({1.0}), std::invalid_argument);
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BOOST_TEST_THROWS(axis::variable<>({1.0, -1.0}), std::invalid_argument);
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}
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// axis::variable
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{
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axis::variable<> a{-1, 0, 1};
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BOOST_TEST_EQ(a.size(), 2);
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BOOST_TEST_EQ(a.bin(-1).lower(), -std::numeric_limits<double>::infinity());
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BOOST_TEST_EQ(a.bin(a.size()).upper(), std::numeric_limits<double>::infinity());
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BOOST_TEST_EQ(a.value(0), -1);
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BOOST_TEST_EQ(a.value(0.5), -0.5);
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BOOST_TEST_EQ(a.value(1), 0);
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BOOST_TEST_EQ(a.value(1.5), 0.5);
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BOOST_TEST_EQ(a.value(2), 1);
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axis::variable<> b;
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BOOST_TEST_NE(a, b);
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b = a;
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BOOST_TEST_EQ(a, b);
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axis::variable<> c = std::move(b);
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BOOST_TEST_EQ(c, a);
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axis::variable<> d;
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BOOST_TEST_NE(c, d);
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d = std::move(c);
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BOOST_TEST_EQ(d, a);
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axis::variable<> e{-2, 0, 2};
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BOOST_TEST_NE(a, e);
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BOOST_TEST_EQ(a.index(-10), -1);
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BOOST_TEST_EQ(a.index(-1), 0);
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BOOST_TEST_EQ(a.index(0), 1);
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BOOST_TEST_EQ(a.index(1), 2);
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BOOST_TEST_EQ(a.index(10), 2);
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BOOST_TEST_EQ(a.index(-std::numeric_limits<double>::infinity()), -1);
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BOOST_TEST_EQ(a.index(std::numeric_limits<double>::infinity()), 2);
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BOOST_TEST_EQ(a.index(std::numeric_limits<double>::quiet_NaN()), 2);
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}
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// axis::variable circular
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{
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axis::variable<double, axis::null_type, axis::option::circular_t> a{-1, 1, 2};
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BOOST_TEST_EQ(a.value(-2), -4);
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BOOST_TEST_EQ(a.value(-1), -2);
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BOOST_TEST_EQ(a.value(0), -1);
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BOOST_TEST_EQ(a.value(1), 1);
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BOOST_TEST_EQ(a.value(2), 2);
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BOOST_TEST_EQ(a.value(3), 4);
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BOOST_TEST_EQ(a.value(4), 5);
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BOOST_TEST_EQ(a.index(-3), 0); // -3 + 3 = 0
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BOOST_TEST_EQ(a.index(-2), 1); // -2 + 3 = 1
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BOOST_TEST_EQ(a.index(-1), 0);
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BOOST_TEST_EQ(a.index(0), 0);
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BOOST_TEST_EQ(a.index(1), 1);
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BOOST_TEST_EQ(a.index(2), 0);
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BOOST_TEST_EQ(a.index(3), 0); // 3 - 3 = 0
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BOOST_TEST_EQ(a.index(4), 1); // 4 - 3 = 1
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}
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// axis::regular with growth
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{
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axis::variable<double, axis::null_type, axis::option::growth_t> a{0, 1};
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BOOST_TEST_EQ(a.size(), 1);
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BOOST_TEST_EQ(a.update(0), std::make_pair(0, 0));
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BOOST_TEST_EQ(a.size(), 1);
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BOOST_TEST_EQ(a.update(1.1), std::make_pair(1, -1));
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BOOST_TEST_EQ(a.size(), 2);
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BOOST_TEST_EQ(a.value(0), 0);
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BOOST_TEST_EQ(a.value(1), 1);
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BOOST_TEST_EQ(a.value(2), 1.5);
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BOOST_TEST_EQ(a.update(-0.1), std::make_pair(0, 1));
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BOOST_TEST_EQ(a.value(0), -0.5);
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BOOST_TEST_EQ(a.size(), 3);
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BOOST_TEST_EQ(a.update(10), std::make_pair(3, -1));
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BOOST_TEST_EQ(a.size(), 4);
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BOOST_TEST_IS_CLOSE(a.value(4), 10, 1e-9);
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BOOST_TEST_EQ(a.update(-10), std::make_pair(0, 1));
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BOOST_TEST_EQ(a.size(), 5);
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BOOST_TEST_IS_CLOSE(a.value(0), -10, 1e-9);
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BOOST_TEST_EQ(a.update(-std::numeric_limits<double>::infinity()),
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std::make_pair(-1, 0));
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BOOST_TEST_EQ(a.update(std::numeric_limits<double>::infinity()),
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std::make_pair(a.size(), 0));
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BOOST_TEST_EQ(a.update(std::numeric_limits<double>::quiet_NaN()),
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std::make_pair(a.size(), 0));
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}
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// iterators
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{
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test_axis_iterator(axis::variable<>{1, 2, 3}, 0, 2);
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test_axis_iterator(
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axis::variable<double, axis::null_type, axis::option::circular_t>{1, 2, 3}, 0, 2);
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}
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// shrink and rebin
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{
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using A = axis::variable<>;
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auto a = A({0, 1, 2, 3, 4, 5});
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auto b = A(a, 1, 4, 1);
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BOOST_TEST_EQ(b.size(), 3);
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BOOST_TEST_EQ(b.value(0), 1);
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BOOST_TEST_EQ(b.value(3), 4);
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auto c = A(a, 0, 4, 2);
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BOOST_TEST_EQ(c.size(), 2);
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BOOST_TEST_EQ(c.value(0), 0);
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BOOST_TEST_EQ(c.value(2), 4);
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auto e = A(a, 1, 5, 2);
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BOOST_TEST_EQ(e.size(), 2);
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BOOST_TEST_EQ(e.value(0), 1);
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BOOST_TEST_EQ(e.value(2), 5);
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}
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// shrink and rebin with circular option
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{
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using A = axis::variable<double, axis::null_type, axis::option::circular_t>;
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auto a = A({1, 2, 3, 4, 5});
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BOOST_TEST_THROWS(A(a, 1, 4, 1), std::invalid_argument);
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BOOST_TEST_THROWS(A(a, 0, 3, 1), std::invalid_argument);
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auto b = A(a, 0, 4, 2);
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BOOST_TEST_EQ(b.size(), 2);
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BOOST_TEST_EQ(b.value(0), 1);
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BOOST_TEST_EQ(b.value(2), 5);
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}
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return boost::report_errors();
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}
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