Boost.RangeEx merged into Boost.Range

[SVN r60897]

test/algorithm_test/set_difference.cpp

@@ -0,0 +1,170 @@
+//  Copyright Neil Groves 2009. Use, modification and
+//  distribution is subject to 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)
+//
+//
+// For more information, see http://www.boost.org/libs/range/
+//
+#include <boost/range/algorithm/set_algorithm.hpp>
+
+#include <boost/test/test_tools.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include <boost/assign.hpp>
+#include <boost/bind.hpp>
+#include <algorithm>
+#include <functional>
+#include <list>
+#include <numeric>
+#include <deque>
+#include <vector>
+
+namespace boost
+{
+    namespace
+    {
+        template<class Container1, class Iterator, class Container2>
+        void check_result(
+            Container1& reference,
+            Iterator    reference_result,
+            Container2& test_cont,
+            Iterator    test_result
+            )
+        {
+            BOOST_CHECK_EQUAL(
+                std::distance<Iterator>(reference.begin(), reference_result),
+                std::distance<Iterator>(test_cont.begin(), test_result)
+                );
+
+            BOOST_CHECK_EQUAL_COLLECTIONS(
+                reference.begin(), reference.end(),
+                test_cont.begin(), test_cont.end()
+                );
+        }
+
+        template<class Container1, class Container2>
+        void test(Container1& cont1, Container2& cont2)
+        {
+            typedef BOOST_DEDUCED_TYPENAME Container1::value_type value_t;
+            typedef BOOST_DEDUCED_TYPENAME std::vector<value_t>::iterator iterator_t;
+
+            std::vector<value_t> reference(cont1.size() + cont2.size());
+            std::vector<value_t> test_cont(reference);
+
+            iterator_t reference_result
+                = std::set_difference(cont1.begin(), cont1.end(),
+                                        cont2.begin(), cont2.end(),
+                                        reference.begin());
+
+            iterator_t test_result
+                = boost::set_difference(cont1, cont2, test_cont.begin());
+
+            check_result(reference, reference_result,
+                         test_cont, test_result);
+        }
+
+        template<class Container, class BinaryPredicate>
+        void sort_container(Container& cont, BinaryPredicate pred)
+        {
+            typedef BOOST_DEDUCED_TYPENAME Container::value_type value_t;
+
+            std::vector<value_t> temp(cont.begin(), cont.end());
+            std::sort(temp.begin(), temp.end(), pred);
+            cont.assign(temp.begin(), temp.end());
+        }
+
+        template<class Container1,
+                 class Container2,
+                 class BinaryPredicate>
+        void test_pred(Container1 cont1, Container2 cont2,
+                       BinaryPredicate pred)
+        {
+            typedef BOOST_DEDUCED_TYPENAME Container1::value_type value_t;
+            typedef BOOST_DEDUCED_TYPENAME std::vector<value_t>::iterator iterator_t;
+
+            sort_container(cont1, pred);
+            sort_container(cont2, pred);
+
+            std::vector<value_t> reference(cont1.size() + cont2.size());
+            std::vector<value_t> test_cont(reference);
+
+            iterator_t reference_result
+                = std::set_difference(cont1.begin(), cont1.end(),
+                                        cont2.begin(), cont2.end(),
+                                        reference.begin(),
+                                        pred);
+
+            iterator_t test_result
+                = boost::set_difference(cont1, cont2, test_cont.begin(), pred);
+
+            check_result(reference, reference_result,
+                         test_cont, test_result);
+        }
+
+        template<class Container1, class Container2>
+        void test_set_difference_impl(
+            Container1& cont1,
+            Container2& cont2
+            )
+        {
+            test(cont1, cont2);
+            test_pred(cont1, cont2, std::less<int>());
+            test_pred(cont1, cont2, std::greater<int>());
+        }
+
+        template<class Container1, class Container2>
+        void test_set_difference_impl()
+        {
+            using namespace boost::assign;
+
+            Container1 cont1;
+            Container2 cont2;
+
+            test_set_difference_impl(cont1, cont2);
+
+            cont1.clear();
+            cont2.clear();
+            cont1 += 1;
+            test_set_difference_impl(cont1, cont2);
+
+            cont1.clear();
+            cont2.clear();
+            cont2 += 1;
+            test_set_difference_impl(cont1, cont2);
+
+            cont1.clear();
+            cont2.clear();
+            cont1 += 1,2,3,4,5,6,7,8,9;
+            cont2 += 2,3,4;
+            test_set_difference_impl(cont1, cont2);
+
+            cont1.clear();
+            cont2.clear();
+            cont1 += 2,3,4;
+            cont2 += 1,2,3,4,5,6,7,8,9;
+            test_set_difference_impl(cont1, cont2);
+        }
+
+        void test_set_difference()
+        {
+            test_set_difference_impl< std::vector<int>, std::vector<int> >();
+            test_set_difference_impl< std::list<int>, std::list<int> >();
+            test_set_difference_impl< std::deque<int>, std::deque<int> >();
+            test_set_difference_impl< std::vector<int>, std::list<int> >();
+            test_set_difference_impl< std::list<int>, std::vector<int> >();
+        }
+    }
+}
+
+
+boost::unit_test::test_suite*
+init_unit_test_suite(int argc, char* argv[])
+{
+    boost::unit_test::test_suite* test
+        = BOOST_TEST_SUITE( "RangeTestSuite.algorithm.set_difference" );
+
+    test->add( BOOST_TEST_CASE( &boost::test_set_difference ) );
+
+    return test;
+}