Revert "cleanup CMakeFile"

This reverts commit 190ea5b1.

test/CMakeLists.txt

@@ -13,7 +13,7 @@ target_link_libraries(dummy ${PLUGIN_NAME})
 ############# USE THIS TEST AS AN EXAMPLE #################
 #                                                         #
 # Create a specific test executable for gtest_example     #
-# wolf_add_gtest(gtest_example gtest_example.cpp)         #
+wolf_add_gtest(gtest_example gtest_example.cpp)           #
 #                                                         #
 # OPTIONAL: if the gtest depends on the dummy library     #
 # (used for implementing pure virtual base classes),      #
@@ -52,9 +52,11 @@ target_link_libraries(gtest_factory PUBLIC dummy)
 
 # FactoryStateBlock factory test
 wolf_add_gtest(gtest_factory_state_block gtest_factory_state_block.cpp)
+target_link_libraries(gtest_factory_state_block PUBLIC dummy)
 
 # Node Emplace test
 wolf_add_gtest(gtest_emplace gtest_emplace.cpp)
+target_link_libraries(gtest_emplace PUBLIC dummy)
 
 # FeatureBase classes test
 wolf_add_gtest(gtest_feature_base gtest_feature_base.cpp)