container/test/small_vector_test.cpp

//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2004-2013. 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/container for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#include <boost/container/small_vector.hpp>
#include "vector_test.hpp"
#include "movable_int.hpp"
#include "propagate_allocator_test.hpp"
#include "default_init_test.hpp"
#include "../../intrusive/test/iterator_test.hpp"

#include <boost/container/allocator.hpp>

#include <iostream>

struct boost_container_small_vector;

namespace boost { namespace container {   namespace test {

template<>
struct alloc_propagate_base<boost_container_small_vector>
{
   template <class T, class Allocator>
   struct apply
   {
      typedef boost::container::small_vector<T, 10, Allocator> type;
   };
};

}}}   //namespace boost::container::test

bool test_small_vector_base_test()
{
   typedef boost::container::small_vector_base<int> smb_t;
   {
      typedef boost::container::small_vector<int, 5> sm5_t;
      BOOST_STATIC_ASSERT(sm5_t::static_capacity == 5);
      sm5_t sm5;
      smb_t &smb = sm5;
      smb.push_back(1);
      sm5_t sm5_copy(sm5);
      sm5_copy.push_back(1);
      if (!boost::container::test::CheckEqualContainers(sm5, smb))
         return false;
   }
   {
      typedef boost::container::small_vector<int, 7> sm7_t;
      BOOST_STATIC_ASSERT(sm7_t::static_capacity == 7);
      sm7_t sm7;
      smb_t &smb = sm7;
      smb.push_back(2);
      sm7_t sm7_copy(sm7);
      sm7_copy.push_back(2);
      if (!boost::container::test::CheckEqualContainers(sm7, smb))
         return false;
   }
   {
      typedef boost::container::small_vector<int, 5> sm5_t;
      sm5_t sm5;
      smb_t &smb = sm5;
      smb.push_back(1);
      sm5_t sm5_copy(smb);
      if (!boost::container::test::CheckEqualContainers(sm5, sm5_copy))
         return false;
      smb.push_back(2);
      if(smb.size() != 2){
         return false;
      }
      sm5_copy = smb;
      if (!boost::container::test::CheckEqualContainers(sm5, sm5_copy))
         return false;
      sm5_t sm5_move(boost::move(smb));
      smb.clear();
      if (!boost::container::test::CheckEqualContainers(sm5_move, sm5_copy))
         return false;
      smb = sm5_copy;
      sm5_move = boost::move(smb);
      smb.clear();
      if (!boost::container::test::CheckEqualContainers(sm5_move, sm5_copy))
         return false;
   }

   return true;
}

//small vector has internal storage so some special swap cases must be tested
bool test_swap()
{
   typedef boost::container::small_vector<int, 10> vec;
   {  //v bigger than static capacity, w empty
      vec v;
      for(std::size_t i = 0, max = v.capacity()+1; i != max; ++i){
         v.push_back(int(i));
      }
      vec w;
      const std::size_t v_size = v.size();
      const std::size_t w_size = w.size();
      v.swap(w);
      if(v.size() != w_size || w.size() != v_size)
         return false;
   }
   {  //v smaller than static capacity, w empty
      vec v;
      for(std::size_t i = 0, max = v.capacity()-1; i != max; ++i){
         v.push_back(int(i));
      }
      vec w;
      const std::size_t v_size = v.size();
      const std::size_t w_size = w.size();
      v.swap(w);
      if(v.size() != w_size || w.size() != v_size)
         return false;
   }
   {  //v & w smaller than static capacity
      vec v;
      for(std::size_t i = 0, max = v.capacity()-1; i != max; ++i){
         v.push_back(int(i));
      }
      vec w;
      for(std::size_t i = 0, max = v.capacity()/2; i != max; ++i){
         w.push_back(int(i));
      }
      const std::size_t v_size = v.size();
      const std::size_t w_size = w.size();
      v.swap(w);
      if(v.size() != w_size || w.size() != v_size)
         return false;
   }
   {  //v & w bigger than static capacity
      vec v;
      for(std::size_t i = 0, max = v.capacity()+1; i != max; ++i){
         v.push_back(int(i));
      }
      vec w;
      for(std::size_t i = 0, max = v.capacity()*2; i != max; ++i){
         w.push_back(int(i));
      }
      const std::size_t v_size = v.size();
      const std::size_t w_size = w.size();
      v.swap(w);
      if(v.size() != w_size || w.size() != v_size)
         return false;
   }
   return true;
}

int main()
{
   using namespace boost::container;

   if(!test_swap())
      return 1;

   if(test::vector_test< small_vector<int, 0> >())
      return 1;

   if(test::vector_test< small_vector<int, 2000> >())
      return 1;

   ////////////////////////////////////
   //    Default init test
   ////////////////////////////////////
   if(!test::default_init_test< small_vector<int, 5, test::default_init_allocator<int> > >()){
      std::cerr << "Default init test failed" << std::endl;
      return 1;
   }

   ////////////////////////////////////
   //    Emplace testing
   ////////////////////////////////////
   const test::EmplaceOptions Options = (test::EmplaceOptions)(test::EMPLACE_BACK | test::EMPLACE_BEFORE);
   if(!boost::container::test::test_emplace< small_vector<test::EmplaceInt, 5>, Options>()){
      return 1;
   }

   ////////////////////////////////////
   //    Allocator propagation testing
   ////////////////////////////////////
   if(!boost::container::test::test_propagate_allocator<boost_container_small_vector>()){
      return 1;
   }

   ////////////////////////////////////
   //    Initializer lists testing
   ////////////////////////////////////
   if(!boost::container::test::test_vector_methods_with_initializer_list_as_argument_for
      < boost::container::small_vector<int, 5> >()) {
      return 1;
   }

   ////////////////////////////////////
   //       Small vector base
   ////////////////////////////////////
   if (!test_small_vector_base_test()){
      return 1;
   }

   ////////////////////////////////////
   //    Iterator testing
   ////////////////////////////////////
   {
      typedef boost::container::small_vector<int, 0> cont_int;
      cont_int a; a.push_back(0); a.push_back(1); a.push_back(2);
      boost::intrusive::test::test_iterator_random< cont_int >(a);
      if(boost::report_errors() != 0) {
         return 1;
      }
   }

   ////////////////////////////////////
   //    has_trivial_destructor_after_move testing
   ////////////////////////////////////
   // default allocator
   {
      typedef boost::container::small_vector<int, 0> cont;
      if (boost::has_trivial_destructor_after_move<cont>::value) {
         std::cerr << "has_trivial_destructor_after_move(default allocator) test failed" << std::endl;
         return 1;
      }
   }
   // std::allocator
   {
      typedef boost::container::small_vector<int, 0, std::allocator<int> > cont;
      if (boost::has_trivial_destructor_after_move<cont>::value) {
         std::cerr << "has_trivial_destructor_after_move(std::allocator) test failed" << std::endl;
         return 1;
      }
   }

   return 0;
}