1 files changed, 17 insertions, 0 deletions
diff --git a/test/regression-validation.rb b/test/regression-validation.rb
index 65bec63..9a2da8f 100644
--- a/test/regression-validation.rb
+++ b/test/regression-validation.rb
@@ -86,6 +86,23 @@ class RegressionValidationTest < MiniTest::Test
     repeated_cv.crossvalidations.each do |cv|
       assert cv.r_squared[:all] > 0.34, "R^2 (#{cv.r_squared[:all]}) should be larger than 0.34"
       assert cv.rmse[:all] < 1.5, "RMSE (#{cv.rmse[:all]}) should be smaller than 0.5"
+=begin
+      #actually some values can be 0 or nil depending on the random folds in this small dataset
+      keys = cv.rmse.keys
+      types = ["rmse", \
+               "r_squared", \
+               "mae", \
+               "nr_predictions", \
+               "within_prediction_interval", \
+               "out_of_prediction_interval"
+      ]
+      types.each do |type| 
+        keys.each do |key|
+          refute_nil cv[type][key]
+          assert cv[type][key] > 0
+        end
+      end
+=end
     end
   end