Currently, our tests generate error messages because WALTer is trying to compute the fitness but the necessary information is not available.
With this PR, we take into account the cases where the fitness can't be computed because caribu is disabled or because the model has not run for enough time.
Currently, our tests generate error messages because WALTer is trying to compute the fitness but the necessary information is not available. With this PR, we take into account the cases where the fitness can't be computed because caribu is disabled or because the model has not run for enough time.