cmake: fix python path for unit tests

Author: jcarpent

test/CMakeLists.txt

@@ -67,6 +67,6 @@ if(BUILD_PYTHON_INTERFACE)
        ${CMAKE_CURRENT_SOURCE_DIR}/src/save_qp_eq.py)
   foreach(TEST ${${PROJECT_NAME}_PYTHON_UNITTEST})
     string(REGEX REPLACE "${PROJECT_SOURCE_DIR}/test/src/" "" TEST ${TEST})
-    add_python_unit_test("py-${TEST}" "test/src/${TEST}")
+    add_python_unit_test("py-${TEST}" "test/src/${TEST}" "bindings/python")
   endforeach(TEST ${${PROJECT_NAME}_PYTHON_UNITTEST})
 endif(BUILD_PYTHON_INTERFACE)