fixed testing infrastructure
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 96bb795..574f9fc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -113,6 +113,6 @@
 
 enable_testing()
 set(RUN_TEST ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/example/run_test.py)
-foreach(i RANGE 1 7)
+foreach(i RANGE 1 12)
   add_test(NAME example${i} COMMAND ${RUN_TEST} example${i})
 endforeach()