message: Test uses sklearn
diff: @@ -494,7 +494,7 @@ if(PYTHONINTERP_FOUND)
  endif()
  # Tomato
  - if(SCIPY_FOUND AND PYBIND11_FOUND)
  + if(SCIPY_FOUND AND SKLEARN_FOUND AND PYBIND11_FOUND)
  add_gudhi_py_test(test_tomato)
  endif()
  