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- // Copyright 2015-2018 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/ignore_unused.hpp>
- #include <boost/core/lightweight_test.hpp>
- #include <boost/core/lightweight_test_trait.hpp>
- #include <boost/histogram/axis/category.hpp>
- #include <boost/histogram/axis/ostream.hpp>
- #include <boost/histogram/axis/traits.hpp>
- #include <limits>
- #include <sstream>
- #include <string>
- #include <type_traits>
- #include "std_ostream.hpp"
- #include "throw_exception.hpp"
- #include "utility_axis.hpp"
- #include "utility_str.hpp"
- int main() {
- using namespace boost::histogram;
- BOOST_TEST(std::is_nothrow_move_constructible<axis::category<int>>::value);
- BOOST_TEST(std::is_nothrow_move_constructible<axis::category<std::string>>::value);
- BOOST_TEST(std::is_nothrow_move_assignable<axis::category<int>>::value);
- BOOST_TEST(std::is_nothrow_move_assignable<axis::category<std::string>>::value);
- // bad ctor
- {
- int x[2];
- boost::ignore_unused(x);
- BOOST_TEST_THROWS(axis::category<int>(x + 1, x), std::invalid_argument);
- }
- // value should return copy for arithmetic types and const reference otherwise
- {
- enum class Foo { foo };
- BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<std::string>>,
- std::string);
- BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<std::string>>().value(0)),
- const std::string&);
- BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<const char*>>,
- const char*);
- BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<const char*>>().value(0)),
- const char*);
- BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<Foo>>, Foo);
- BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<Foo>>().value(0)), Foo);
- BOOST_TEST_TRAIT_SAME(axis::traits::value_type<axis::category<int>>, int);
- BOOST_TEST_TRAIT_SAME(decltype(std::declval<axis::category<int>>().value(0)), int);
- }
- // empty axis::category
- {
- axis::category<int> a;
- axis::category<int> b(std::vector<int>(0));
- BOOST_TEST_EQ(a, b);
- BOOST_TEST_EQ(a.size(), 0);
- BOOST_TEST_EQ(a.index(-1), 0);
- BOOST_TEST_EQ(a.index(0), 0);
- BOOST_TEST_EQ(a.index(1), 0);
- }
- // axis::category
- {
- std::string A("A"), B("B"), C("C"), other;
- axis::category<std::string> a({A, B, C}, "foo");
- BOOST_TEST_EQ(a.metadata(), "foo");
- BOOST_TEST_EQ(static_cast<const axis::category<std::string>&>(a).metadata(), "foo");
- a.metadata() = "bar";
- BOOST_TEST_EQ(static_cast<const axis::category<std::string>&>(a).metadata(), "bar");
- 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.index(other), 3);
- BOOST_TEST_EQ(a.value(0), A);
- BOOST_TEST_EQ(a.value(1), B);
- BOOST_TEST_EQ(a.value(2), C);
- BOOST_TEST_THROWS(a.value(3), std::out_of_range);
- BOOST_TEST_EQ(str(a),
- "category(\"A\", \"B\", \"C\", metadata=\"bar\", options=overflow)");
- }
- // category<int, axis::null_type>: copy, move
- {
- using C = axis::category<int, axis::null_type>;
- C a({1, 2, 3});
- C a2(a);
- BOOST_TEST_EQ(a2, a);
- C b;
- BOOST_TEST_NE(a, b);
- b = a;
- BOOST_TEST_EQ(a, b);
- b = C{{2, 1, 3}};
- BOOST_TEST_NE(a, b);
- b = a;
- BOOST_TEST_EQ(a, b);
- C c = std::move(b);
- BOOST_TEST_EQ(c, a);
- C d;
- BOOST_TEST_NE(c, d);
- d = std::move(c);
- BOOST_TEST_EQ(d, a);
- }
- // category<std::string>: copy, move
- {
- using C = axis::category<std::string>;
- C a({"A", "B", "C"}, "foo");
- C a2(a);
- BOOST_TEST_EQ(a2, a);
- C b;
- BOOST_TEST_NE(a, b);
- b = a;
- BOOST_TEST_EQ(a, b);
- b = C{{"B", "A", "C"}};
- BOOST_TEST_NE(a, b);
- b = a;
- BOOST_TEST_EQ(a, b);
- C c = std::move(b);
- BOOST_TEST_EQ(c, a);
- C d;
- BOOST_TEST_NE(c, d);
- d = std::move(c);
- BOOST_TEST_EQ(d, a);
- }
- // axis::category with growth
- {
- axis::category<int, axis::null_type, axis::option::growth_t> a;
- BOOST_TEST_EQ(a.size(), 0);
- BOOST_TEST_EQ(a.update(5), std::make_pair(0, -1));
- BOOST_TEST_EQ(a.size(), 1);
- BOOST_TEST_EQ(a.update(1), std::make_pair(1, -1));
- BOOST_TEST_EQ(a.size(), 2);
- BOOST_TEST_EQ(a.update(10), std::make_pair(2, -1));
- BOOST_TEST_EQ(a.size(), 3);
- BOOST_TEST_EQ(a.update(10), std::make_pair(2, 0));
- BOOST_TEST_EQ(a.size(), 3);
- BOOST_TEST_EQ(str(a), "category(5, 1, 10, options=growth)");
- }
- // iterators
- {
- test_axis_iterator(axis::category<>({3, 1, 2}, ""), 0, 3);
- test_axis_iterator(axis::category<std::string>({"A", "B"}, ""), 0, 2);
- }
- return boost::report_errors();
- }
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