Boost.RangeEx merged into Boost.Range

[SVN r60897]

test/adaptor_test/strided.cpp

@@ -0,0 +1,111 @@
+// Boost.Range library
+//
+//  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/adaptor/strided.hpp>
+
+#include <boost/test/test_tools.hpp>
+#include <boost/test/unit_test.hpp>
+
+#include <boost/assign.hpp>
+#include <boost/range/algorithm_ext.hpp>
+
+#include <algorithm>
+#include <deque>
+#include <vector>
+
+namespace boost
+{
+    namespace
+    {
+        const int STRIDE_SIZE = 2;
+
+        template< class Container >
+        void strided_test_impl( Container& c )
+        {
+            using namespace boost::adaptors;
+
+            BOOST_ASSERT( c.size() % STRIDE_SIZE == 0 );
+
+            Container reference;
+
+            {
+                typedef BOOST_DEDUCED_TYPENAME Container::const_iterator iterator_t;
+                iterator_t it = c.begin();
+                for (iterator_t last = c.end();
+                        it != last; it += STRIDE_SIZE)
+                {
+                    reference.push_back(*it);
+                }
+            }
+
+            Container test;
+            boost::push_back( test, c | strided(2) );
+
+            BOOST_CHECK_EQUAL_COLLECTIONS( test.begin(), test.end(),
+                reference.begin(), reference.end() );
+
+            Container test2;
+            boost::push_back( test2, adaptors::stride(c, 2) );
+
+            BOOST_CHECK_EQUAL_COLLECTIONS( test2.begin(), test2.end(),
+                reference.begin(), reference.end() );
+
+            // Test the const versions:
+            const Container& cc = c;
+            Container test3;
+            boost::push_back( test3, cc | strided(2) );
+
+            BOOST_CHECK_EQUAL_COLLECTIONS( test3.begin(), test3.end(),
+                reference.begin(), reference.end() );
+
+            Container test4;
+            boost::push_back( test4, adaptors::stride(cc, 2) );
+
+            BOOST_CHECK_EQUAL_COLLECTIONS( test4.begin(), test4.end(),
+                reference.begin(), reference.end() );
+        }
+
+        template< class Container >
+        void strided_test_impl()
+        {
+            using namespace boost::assign;
+
+            Container c;
+
+            // Test empty
+            strided_test_impl(c);
+
+            // Test two elements
+            c += 1,2;
+            strided_test_impl(c);
+
+            // Test many elements
+            c += 1,1,1,2,2,3,4,5,6,6,6,7,8,9;
+            strided_test_impl(c);
+        }
+
+        void strided_test()
+        {
+            strided_test_impl< std::vector< int > >();
+            strided_test_impl< std::deque< int > >();
+        }
+    }
+}
+
+boost::unit_test::test_suite*
+init_unit_test_suite(int argc, char* argv[])
+{
+    boost::unit_test::test_suite* test
+        = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.strided" );
+
+    test->add( BOOST_TEST_CASE( &boost::strided_test ) );
+
+    return test;
+}