Added unit test.

unittest/AttributeTest.cpp

@@ -0,0 +1,30 @@
+#include "attribute.hpp"
+
+#define BOOST_TEST_DYN_LINK
+#define BOOST_TEST_MODULE attribute_test
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_AUTO_TEST_SUITE( test_suite )
+
+//____________________________________________________________________________//
+
+BOOST_AUTO_TEST_CASE( test1 )
+{
+    int x = 0;
+    attribute<int> a(x);
+
+    BOOST_CHECK( a.get_value() == 0 );
+
+    a.set_value("1");
+
+    BOOST_CHECK( a.get_value() == 1 );
+
+    a.set_value("0");
+
+    BOOST_CHECK( a.get_value() == 0 );
+}
+
+//____________________________________________________________________________//
+
+BOOST_AUTO_TEST_SUITE_END()

unittest/CMakeLists.txt

@@ -2,6 +2,10 @@ cmake_minimum_required (VERSION 2.6)
 
 link_directories(${Boost_LIBRARY_DIRS})
 
+add_executable(AttributeTest AttributeTest.cpp)
+target_link_libraries(AttributeTest ${Boost_LIBRARIES})
+add_test(AttributeTest AttributeTest)
+
 add_executable(AttributesTest AttributesTest.cpp)
 target_link_libraries(AttributesTest ${Boost_LIBRARIES})
 add_test(AttributesTest AttributesTest)