slist_test.cpp

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/////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Olaf Krzikalla 2004-2006.
// (C) Copyright Ion Gaztanaga  2006-2007.
//
// 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)
//
// See http://www.boost.org/libs/intrusive for documentation.
//
/////////////////////////////////////////////////////////////////////////////

#include <boost/intrusive/detail/config_begin.hpp>
#include <boost/intrusive/slist.hpp>
#include <boost/intrusive/detail/pointer_to_other.hpp>
#include "itestvalue.hpp"
#include "smart_ptr.hpp"
#include "common_functors.hpp"
#include <vector>
#include <boost/detail/lightweight_test.hpp>
#include "test_macros.hpp"
#include "test_container.hpp"

using namespace boost::intrusive;

template<class ValueTraits, bool Linear, bool CacheLast>
struct test_slist 
{
   typedef typename ValueTraits::value_type value_type;
   static void test_all(std::vector<value_type>& values);
   static void test_front(std::vector<value_type>& values);
   static void test_back(std::vector<value_type>& values, detail::bool_<true>);
   static void test_back(std::vector<value_type>& values, detail::bool_<false>);
   static void test_sort(std::vector<value_type>& values);
   static void test_merge(std::vector<value_type>& values);
   static void test_remove_unique(std::vector<value_type>& values);
   static void test_insert(std::vector<value_type>& values);
   static void test_shift(std::vector<value_type>& values);
   static void test_swap(std::vector<value_type>& values);
   static void test_slow_insert(std::vector<value_type>& values);
   static void test_clone(std::vector<value_type>& values);
   static void test_container_from_end(std::vector<value_type> &, detail::bool_<true>){}
   static void test_container_from_end(std::vector<value_type> &values, detail::bool_<false>);
};

template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_all (std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   {
      list_type list(values.begin(), values.end());
      test::test_container(list);
      list.clear();
      list.insert(list.end(), values.begin(), values.end());
      test::test_sequence_container(list, values);
   }
   test_front(values);
   test_back(values, detail::bool_<CacheLast>());
   test_sort(values);
   test_merge (values);
   test_remove_unique(values);
   test_insert(values);
   test_shift(values);
   test_slow_insert (values);
   test_swap(values);
   test_clone(values);
   test_container_from_end(values, detail::bool_<Linear>());
}

//test: push_front, pop_front, front, size, empty:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_front(std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   list_type testlist;
   BOOST_TEST (testlist.empty());
     
   testlist.push_front (values[0]);
   BOOST_TEST (testlist.size() == 1);
   BOOST_TEST (&testlist.front() == &values[0]);

   testlist.push_front (values[1]);
   BOOST_TEST (testlist.size() == 2);
   BOOST_TEST (&testlist.front() == &values[1]);
     
   testlist.pop_front();
   BOOST_TEST (testlist.size() == 1);
   BOOST_TEST (&testlist.front() == &values[0]);
     
   testlist.pop_front();
   BOOST_TEST (testlist.empty());
}

//test: push_front, pop_front, front, size, empty:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_back(std::vector<typename ValueTraits::value_type>& values, detail::bool_<true>)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   list_type testlist;
   BOOST_TEST (testlist.empty());

   testlist.push_back (values[0]);
   BOOST_TEST (testlist.size() == 1);
   BOOST_TEST (&testlist.front() == &values[0]);
   BOOST_TEST (&testlist.back() == &values[0]);
   testlist.push_back(values[1]);
   BOOST_TEST(*testlist.previous(testlist.end()) == values[1]);
   BOOST_TEST (&testlist.front() == &values[0]);
   BOOST_TEST (&testlist.back() == &values[1]);
}

//test: push_front, pop_front, front, size, empty:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_back(std::vector<typename ValueTraits::value_type>&, detail::bool_<false>)
{}


//test: merge due to error in merge implementation:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_merge (std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   list_type testlist1, testlist2;
   testlist1.push_front (values[0]);
   testlist2.push_front (values[4]);
   testlist2.push_front (values[3]);
   testlist2.push_front (values[2]);
   testlist1.merge (testlist2);

   int init_values [] = { 1, 3, 4, 5 };
   TEST_INTRUSIVE_SEQUENCE( init_values, testlist1.begin() );
}

//test: merge due to error in merge implementation:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_remove_unique (std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   {
      list_type list(values.begin(), values.end());
      list.remove_if(is_even());
      int init_values [] = { 1, 3, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, list.begin() );
   }
   {
      std::vector<typename ValueTraits::value_type> values2(values);
      list_type list(values.begin(), values.end());
      list.insert_after(list.before_begin(), values2.begin(), values2.end());
      list.sort();
      int init_values [] = { 1, 1, 2, 2, 3, 3, 4, 4, 5, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, list.begin() );
      list.unique();
      int init_values2 [] = { 1, 2, 3, 4, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values2, list.begin() );
   }
}

//test: constructor, iterator, sort, reverse:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_sort(std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   list_type testlist (values.begin(), values.end());

   {  int init_values [] = { 1, 2, 3, 4, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, testlist.begin() );  }

   testlist.sort (even_odd());
   {  int init_values [] = { 2, 4, 1, 3, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, testlist.begin() );  }

   testlist.reverse();
   {  int init_values [] = { 5, 3, 1, 4, 2 };
      TEST_INTRUSIVE_SEQUENCE( init_values, testlist.begin() );  }
}  
  
//test: assign, insert_after, const_iterator, erase_after, s_iterator_to, previous:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_insert(std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   list_type testlist;
   testlist.assign (&values[0] + 2, &values[0] + 5);

   const list_type& const_testlist = testlist;
   {  int init_values [] = { 3, 4, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, const_testlist.begin() );  }

   typename list_type::iterator i = ++testlist.begin();
   BOOST_TEST (i->value_ == 4);

   testlist.insert_after (i, values[0]);
   {  int init_values [] = { 3, 4, 1, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, const_testlist.begin() );  }

   i = testlist.iterator_to (values[4]);
   BOOST_TEST (&*i == &values[4]);
   i = list_type::s_iterator_to (values[4]);
   BOOST_TEST (&*i == &values[4]);
   i = testlist.previous (i);
   BOOST_TEST (&*i == &values[0]);

   testlist.erase_after (i);
   BOOST_TEST (&*i == &values[0]);
   {  int init_values [] = { 3, 4, 1 };
      TEST_INTRUSIVE_SEQUENCE( init_values, const_testlist.begin() );  }
}

//test: insert, const_iterator, erase, siterator_to:
template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_slow_insert (std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   list_type testlist;
   testlist.push_front (values[4]);
   testlist.insert (testlist.begin(), &values[0] + 2, &values[0] + 4);

   const list_type& const_testlist = testlist;
   {  int init_values [] = { 3, 4, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, const_testlist.begin() );  }

   typename list_type::iterator i = ++testlist.begin();
   BOOST_TEST (i->value_ == 4);

   testlist.insert (i, values[0]);
   {  int init_values [] = { 3, 1, 4, 5 };
      TEST_INTRUSIVE_SEQUENCE( init_values, const_testlist.begin() );  }

   i = testlist.iterator_to (values[4]);
   BOOST_TEST (&*i == &values[4]);

   i = list_type::s_iterator_to (values[4]);
   BOOST_TEST (&*i == &values[4]);

   i = testlist.erase (i);
   BOOST_TEST (i == testlist.end());

   {  int init_values [] = { 3, 1, 4 };
      TEST_INTRUSIVE_SEQUENCE( init_values, const_testlist.begin() );  }

   testlist.erase (++testlist.begin(), testlist.end());
   BOOST_TEST (testlist.size() == 1);
   BOOST_TEST (testlist.front().value_ == 3);
}

template<class ValueTraits, bool Linear, bool CacheLast>
void test_slist<ValueTraits, Linear, CacheLast>
   ::test_shift(std::vector<typename ValueTraits::value_type>& values)
{
   typedef typename ValueTraits::value_type value_type;
   typedef slist
      < value_type
      , value_traits<ValueTraits>
      , size_type<std::size_t>
      , constant_time_size<value_type::constant_time_size>
      , linear<Linear>
      , cache_last<CacheLast>
      > list_type;
   list_type testlist;

   const int num_values = (int)values.size();
   std::vector<int> expected_values(num_values);

   //Shift forward all possible positions 3 times
   for(int s = 1; s <= num_values; ++s){
      expected_values.resize(s);
      for(int i = 0; i < s*3; ++i){
         testlist.insert_after(testlist.before_begin(), &values[0], &values[0] + s);
         testlist.shift_forward(i);
         for(int j = 0; j < s; ++j){
            expected_values[(j + s - i%s) % s] = (j + 1);
         }

         TEST_INTRUSIVE_SEQUENCE_EXPECTED(expected_values, testlist.begin())
         testlist.clear();