// Copyright 2006-2009 Daniel James.
// 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)

// clang-format off
#include "../helpers/prefix.hpp"
#include <boost/unordered_set.hpp>
#include <boost/unordered_map.hpp>
#include "../helpers/postfix.hpp"
// clang-format on

#include <boost/config.hpp>
#include <algorithm>
#include <iterator>
#include "../helpers/test.hpp"
#include "../objects/test.hpp"
#include "../objects/cxx11_allocator.hpp"
#include "../helpers/random_values.hpp"
#include "../helpers/tracker.hpp"
#include "../helpers/invariants.hpp"

#if defined(BOOST_MSVC)
#pragma warning(disable : 4127) // conditional expression is constant
#endif

namespace swap_tests {

  test::seed_t initialize_seed(783472);

  template <class X> void swap_test_impl(X& x1, X& x2)
  {
    test::ordered<X> tracker1 = test::create_ordered(x1);
    test::ordered<X> tracker2 = test::create_ordered(x2);
    tracker1.insert_range(x1.begin(), x1.end());
    tracker2.insert_range(x2.begin(), x2.end());
    x1.swap(x2);
    tracker1.compare(x2);
    tracker2.compare(x1);
  }

  template <class X> void swap_tests1(X*, test::random_generator generator)
  {
    {
      test::check_instances check_;

      X x;
      swap_test_impl(x, x);
    }

    {
      test::check_instances check_;

      X x, y;
      swap_test_impl(x, y);
    }

    {
      test::check_instances check_;

      test::random_values<X> v(1000, generator);
      X x, y(v.begin(), v.end());
      swap_test_impl(x, y);
      swap_test_impl(x, y);
    }

    {
      test::check_instances check_;

      test::random_values<X> vx(1000, generator), vy(1000, generator);
      X x(vx.begin(), vx.end()), y(vy.begin(), vy.end());
      swap_test_impl(x, y);
      swap_test_impl(x, y);
    }
  }

  template <class X> void swap_tests2(X* ptr, test::random_generator generator)
  {
    swap_tests1(ptr, generator);

    typedef typename X::hasher hasher;
    typedef typename X::key_equal key_equal;
    typedef typename X::allocator_type allocator_type;

    {
      test::check_instances check_;

      X x(0, hasher(1), key_equal(1));
      X y(0, hasher(2), key_equal(2));
      swap_test_impl(x, y);
    }

    {
      test::check_instances check_;

      test::random_values<X> v(1000, generator);
      X x(v.begin(), v.end(), 0, hasher(1), key_equal(1));
      X y(0, hasher(2), key_equal(2));
      swap_test_impl(x, y);
    }

    {
      test::check_instances check_;

      test::random_values<X> vx(100, generator), vy(50, generator);
      X x(vx.begin(), vx.end(), 0, hasher(1), key_equal(1));
      X y(vy.begin(), vy.end(), 0, hasher(2), key_equal(2));
      swap_test_impl(x, y);
      swap_test_impl(x, y);
    }

    {
      test::force_equal_allocator force_(!allocator_type::is_propagate_on_swap);
      test::check_instances check_;

      test::random_values<X> vx(50, generator), vy(100, generator);
      X x(vx.begin(), vx.end(), 0, hasher(), key_equal(), allocator_type(1));
      X y(vy.begin(), vy.end(), 0, hasher(), key_equal(), allocator_type(2));

      if (allocator_type::is_propagate_on_swap ||
          x.get_allocator() == y.get_allocator()) {
        swap_test_impl(x, y);
      }
    }

    {
      test::force_equal_allocator force_(!allocator_type::is_propagate_on_swap);
      test::check_instances check_;

      test::random_values<X> vx(100, generator), vy(100, generator);
      X x(vx.begin(), vx.end(), 0, hasher(1), key_equal(1), allocator_type(1));
      X y(vy.begin(), vy.end(), 0, hasher(2), key_equal(2), allocator_type(2));

      if (allocator_type::is_propagate_on_swap ||
          x.get_allocator() == y.get_allocator()) {
        swap_test_impl(x, y);
        swap_test_impl(x, y);
      }
    }
  }

  boost::unordered_map<test::object, test::object, test::hash, test::equal_to,
    std::allocator<test::object> >* test_map_std_alloc;

  boost::unordered_set<test::object, test::hash, test::equal_to,
    test::allocator1<test::object> >* test_set;
  boost::unordered_multiset<test::object, test::hash, test::equal_to,
    test::allocator2<test::object> >* test_multiset;
  boost::unordered_map<test::object, test::object, test::hash, test::equal_to,
    test::allocator1<test::object> >* test_map;
  boost::unordered_multimap<test::object, test::object, test::hash,
    test::equal_to, test::allocator2<test::object> >* test_multimap;

  boost::unordered_set<test::object, test::hash, test::equal_to,
    test::cxx11_allocator<test::object, test::propagate_swap> >*
    test_set_prop_swap;
  boost::unordered_multiset<test::object, test::hash, test::equal_to,
    test::cxx11_allocator<test::object, test::propagate_swap> >*
    test_multiset_prop_swap;
  boost::unordered_map<test::object, test::object, test::hash, test::equal_to,
    test::cxx11_allocator<test::object, test::propagate_swap> >*
    test_map_prop_swap;
  boost::unordered_multimap<test::object, test::object, test::hash,
    test::equal_to, test::cxx11_allocator<test::object, test::propagate_swap> >*
    test_multimap_prop_swap;

  boost::unordered_set<test::object, test::hash, test::equal_to,
    test::cxx11_allocator<test::object, test::no_propagate_swap> >*
    test_set_no_prop_swap;
  boost::unordered_multiset<test::object, test::hash, test::equal_to,
    test::cxx11_allocator<test::object, test::no_propagate_swap> >*
    test_multiset_no_prop_swap;
  boost::unordered_map<test::object, test::object, test::hash, test::equal_to,
    test::cxx11_allocator<test::object, test::no_propagate_swap> >*
    test_map_no_prop_swap;
  boost::unordered_multimap<test::object, test::object, test::hash,
    test::equal_to,
    test::cxx11_allocator<test::object, test::no_propagate_swap> >*
    test_multimap_no_prop_swap;

  template <typename T> bool is_propagate(T*)
  {
    return T::allocator_type::is_propagate_on_swap;
  }

  using test::default_generator;
  using test::generate_collisions;
  using test::limited_range;

  UNORDERED_AUTO_TEST (check_traits) {
    BOOST_TEST(!is_propagate(test_set));
    BOOST_TEST(is_propagate(test_set_prop_swap));
    BOOST_TEST(!is_propagate(test_set_no_prop_swap));
  }

  UNORDERED_TEST(
    swap_tests1, ((test_map_std_alloc)(test_set)(test_multiset)(test_map)(
                   test_multimap)(test_set_prop_swap)(test_multiset_prop_swap)(
                   test_map_prop_swap)(test_multimap_prop_swap)(
                   test_set_no_prop_swap)(test_multiset_no_prop_swap)(
                   test_map_no_prop_swap)(test_multimap_no_prop_swap))(
                   (default_generator)(generate_collisions)(limited_range)))

  UNORDERED_TEST(swap_tests2,
    ((test_set)(test_multiset)(test_map)(test_multimap)(test_set_prop_swap)(
      test_multiset_prop_swap)(test_map_prop_swap)(test_multimap_prop_swap)(
      test_set_no_prop_swap)(test_multiset_no_prop_swap)(test_map_no_prop_swap)(
      test_multimap_no_prop_swap))(
      (default_generator)(generate_collisions)(limited_range)))
}
RUN_TESTS()