message: Add diff test
diff: @@ -7,7 +7,7 @@ target_link_libraries(point_cloud_edge_collapse_rips_persistence Boost::program_
  if (TBB_FOUND)
  target_link_libraries(point_cloud_edge_collapse_rips_persistence ${TBB_LIBRARIES})
  endif()
  -add_test(NAME point_cloud_edge_collapse_rips_persistence COMMAND $<TARGET_FILE:point_cloud_edge_collapse_rips_persistence>
  +add_test(NAME Edge_collapse_utilities_point_cloud_rips_persistence COMMAND $<TARGET_FILE:point_cloud_edge_collapse_rips_persistence>
  "${CMAKE_SOURCE_DIR}/data/points/tore3D_1307.off" "-r" "0.25" "-m" "0.5" "-d" "3" "-p" "3" "-o" "off_results.pers")
  install(TARGETS point_cloud_edge_collapse_rips_persistence DESTINATION bin)
  @@ -19,7 +19,15 @@ target_link_libraries(distance_matrix_edge_collapse_rips_persistence Boost::prog
  if (TBB_FOUND)
  target_link_libraries(distance_matrix_edge_collapse_rips_persistence ${TBB_LIBRARIES})
  endif()
  -add_test(NAME distance_matrix_edge_collapse_rips_persistence COMMAND $<TARGET_FILE:distance_matrix_edge_collapse_rips_persistence>
  +add_test(NAME Edge_collapse_utilities_distance_matrix_rips_persistence COMMAND $<TARGET_FILE:distance_matrix_edge_collapse_rips_persistence>
  "${CMAKE_SOURCE_DIR}/data/distance_matrix/tore3D_1307_distance_matrix.csv" "-r" "0.25" "-m" "0.5" "-d" "3" "-p" "3" "-o" "csv_results.pers")
  install(TARGETS distance_matrix_edge_collapse_rips_persistence DESTINATION bin)
  +
  +if (DIFF_PATH)
  + add_test(Edge_collapse_utilities_diff_persistence ${DIFF_PATH}
  + "off_results.pers" "csv_results.pers")
  + set_tests_properties(Edge_collapse_utilities_diff_persistence PROPERTIES DEPENDS
  + "Edge_collapse_utilities_point_cloud_rips_persistence;Edge_collapse_utilities_distance_matrix_rips_persistence")
  +
  +endif()
  